Getting started

To install the package currently you must install directly from GitHub along with the leapR dependency as shown below. Before release we hope to move to Bioconductor.

The leapR package is designed for flexible pathway enrichment and currently must be installed before spammR.

  ##install if not already installed
  library(devtools)
  devtools::install_github('PNNL-CompBio/leapR')
  devtools::install_github('PNNL-CompBio/spammR')

Once the package is installed you load the library, including the test data.

## load spammR
library(spammR)
library(BiocFileCache)

Collecting data to analyze

spammR enables the analysis of disparate sets of multiomic data: image-based data and numerical measurements of omics data. It is incredibly flexible as to the type of multiomic data. We assume each omics measurement is collected in a single sample, and that there are specific spatial coordinates for that sample in the image. We leverage the SpatialExperiment object to store the data for each image/measurement pair.

Data overview and examples

The spammR package requires omics data with spatial coordinates for the functions to run successfully. Here we describe the data required and show examples.

Omics Measurement Data

SpatialExperiment can hold multiple omics measurements mapping to the same sample identifier in different ‘slots’. This data can be a tabular data frame or matrix with rownames referencing measurements in a particular sample (e.g. gene, species) and column names representing sample identifiers. An example of this can be found by loading pancDataList.rda file from Figshare.

To evaluate the features of this package we are using pancreatic data from Gosline et al. that is captured using mass spectrometry measured from 7 independent regions of a single human pancreas. Each image is segmented into nine ‘voxels’, with one voxel per image representing a cluster of islet cells.

path <- tempfile()
bfc <- BiocFileCache(path, ask = FALSE)

pdl_f <- "https://api.figshare.com/v2/file/download/55158821"#,
      #        mode = "wb", quiet = TRUE, dest = "pdl.rda")

pc <- bfcadd(bfc, "pdl", fpath=pdl_f)
## Error while performing HEAD request.
##    Proceeding without cache information.
load(pc)#"pdl.rda")
     
utils::head(pancDataList$Image_0[, 1:8])
##                            0_S_1_1  0_S_1_2  0_S_1_3  0_S_2_1  0_S_2_2  0_S_2_3
## sp|A0A024RBG1|NUD4B_HUMAN 13.06042 13.42317 12.42396 13.02470 12.56442 12.69023
## sp|A0A096LP55|QCR6L_HUMAN 15.10920 15.27460 15.16780 15.01030 15.46639 14.73712
## sp|A0AV96|RBM47_HUMAN     17.40246 17.29727 17.25559 17.34851 17.12866 17.17658
## sp|A0AVT1|UBA6_HUMAN      18.00653 18.43015 18.24663 18.17563 18.38961 18.29268
## sp|A0FGR8|ESYT2_HUMAN     16.59018 16.48890 16.50134 16.55334 16.32316 16.43397
## sp|A0MZ66|SHOT1_HUMAN     18.19277 18.73633 18.54485 18.20005 18.74041 18.70762
##                            0_S_3_1  0_S_3_2
## sp|A0A024RBG1|NUD4B_HUMAN       NA 13.40670
## sp|A0A096LP55|QCR6L_HUMAN 14.81792 15.63741
## sp|A0AV96|RBM47_HUMAN     17.27792 17.11678
## sp|A0AVT1|UBA6_HUMAN      18.12080 18.10220
## sp|A0FGR8|ESYT2_HUMAN     16.43682 16.20515
## sp|A0MZ66|SHOT1_HUMAN     18.60198 18.62946
file.remove("pdl.rda")
## Warning in file.remove("pdl.rda"): cannot remove file 'pdl.rda', reason 'No
## such file or directory'
## [1] FALSE

Here the rownames represent protein identifiers and the column names represent individual samples. Each element of the list contains the measurements from a different sample:

print(length(pancDataList))
## [1] 7
head(pancDataList[[2]][, 1:8])
##                            1_S_1_1  1_S_1_2  1_S_1_3  1_S_2_1  1_S_2_2  1_S_2_3
## sp|A0A024RBG1|NUD4B_HUMAN       NA       NA       NA       NA       NA       NA
## sp|A0A096LP55|QCR6L_HUMAN       NA       NA       NA       NA       NA       NA
## sp|A0AV96|RBM47_HUMAN     17.68866 17.58076 17.51335 17.65900 17.52926 17.44999
## sp|A0AVT1|UBA6_HUMAN      18.02235 18.35493 18.03651 18.09462 18.08796 18.04204
## sp|A0FGR8|ESYT2_HUMAN     17.50177 17.51525 17.34338 17.41622 17.34254 17.46062
## sp|A0MZ66|SHOT1_HUMAN     18.57445 18.67262 18.83672 18.69094 18.48785 18.75190
##                            1_S_3_1  1_S_3_2
## sp|A0A024RBG1|NUD4B_HUMAN       NA       NA
## sp|A0A096LP55|QCR6L_HUMAN       NA       NA
## sp|A0AV96|RBM47_HUMAN     17.37103 17.50367
## sp|A0AVT1|UBA6_HUMAN      18.21052 17.94707
## sp|A0FGR8|ESYT2_HUMAN     17.31495 17.53217
## sp|A0MZ66|SHOT1_HUMAN     18.82805 18.48856

This list is used below in our analysis examples.

Sample metadata

The samples metadata table contains mappings between samples and metadata. An example can be found in data(pancMeta). Most importantly we require the image mapping information, which includes: - Image coordinates: to map the image to a coordinate space we need to know the x_origin, and y_origin (assumed to be zero) as well as x_max and y_max, which is the top right of the image. The package plots the entire image so specifying these coordinates ensures that all other points are properly mapped. - Sample coordinates: Each sample has its own x_coord and y_coord. - Spot size: spot_height and spot_width.

data(pancMeta)
head(pancMeta)
##         Image x_coord y_coord IsletStatus IsletOrNot Plex Grid.Number x_pixels
## 0_S_3_1     0       3       1    Proximal   NonIslet 127N           1      475
## 0_S_2_1     0       2       1       Islet      Islet 128N           2      380
## 0_S_1_1     0       1       1    Proximal   NonIslet 127C           3      285
## 0_S_3_2     0       3       2    Proximal   NonIslet 128C           4      475
## 0_S_2_2     0       2       2    Proximal   NonIslet 129N           5      380
## 0_S_1_2     0       1       2    Proximal   NonIslet 129C           6      285
##         y_pixels x_origin y_origin x_max y_max spot_width spot_height
## 0_S_3_1      170        0        0   860   725         90         140
## 0_S_2_1      170        0        0   860   725         90         140
## 0_S_1_1      170        0        0   860   725         90         140
## 0_S_3_2      315        0        0   860   725         90         140
## 0_S_2_2      315        0        0   860   725         90         140
## 0_S_1_2      315        0        0   860   725         90         140

This metadata contains information for all 7 images, so we do not need a separate metadata file for each image, the convert_to_spe function will simply take the metadata relevant to the data file.

Image files

There can be multiple image files associated with a single set of omics measurements. Currently we have tested working with files in png format. Each image we have is stained so that we can identify the Islet cells. Each image also has a grid superimposed to show where the sample measurements came from. The grid is not necessary, of course, but can help alibrate the coordinates.

library(cowplot)

cowplot::ggdraw() + cowplot::draw_image(system.file("extdata",
                                                    "Image_1.png",
                                                    package = "spammR"))

Now we can use this image and others to visualize omics data.

Omics metadata

The last set of metadata relates to the rows of the omics measurement data. When using gene-based data, this will be the genes or proteins in the dataset. When using metagenomics, this will refer to the species. One column of this table must uniquely map to the rownames of the omics data.

data(protMeta)
head(protMeta[, c("pancProts", "EntryName", "PrimaryGeneName")])
##                   pancProts   EntryName PrimaryGeneName
## 1 sp|A0A024RBG1|NUD4B_HUMAN NUD4B_HUMAN          NUDT4B
## 2 sp|A0A096LP55|QCR6L_HUMAN QCR6L_HUMAN          UQCRHL
## 3     sp|A0AV96|RBM47_HUMAN RBM47_HUMAN           RBM47
## 4      sp|A0AVT1|UBA6_HUMAN  UBA6_HUMAN            UBA6
## 5     sp|A0FGR8|ESYT2_HUMAN ESYT2_HUMAN           ESYT2
## 6     sp|A0MZ66|SHOT1_HUMAN SHOT1_HUMAN           SHTN1

This data helps us find better gene identifiers.

Loading data into spatial experiment object.

Now that we have all the data loaded we can build a SpatialExperiment object either using ALL samples or just the samples in a single image. We can pool all the data for more statistical power.

pooledData <- dplyr::bind_cols(pancDataList)
pooled.panc.spe <- convert_to_spe(pooledData, ## pooled data table
  pancMeta, ## pooled metadata
  protMeta, ## protein identifiers
  feature_meta_colname = "pancProts", # column name
)
## Spatial object created without spatial coordinate 
##          column names provided. Distance based analysis will not be enabled.
## Note: Only mapping metadata for 6662 features out of 6693 data points
print(pooled.panc.spe)
## class: SpatialExperiment 
## dim: 6662 63 
## metadata(0):
## assays(1): proteomics
## rownames(6662): sp|A0A024RBG1|NUD4B_HUMAN sp|A0A096LP55|QCR6L_HUMAN ...
##   sp|Q9Y3M8|STA13_HUMAN sp|Q9Y6X3|SCC4_HUMAN
## rowData names(6): pancProts Entry ... GeneNames PrimaryGeneName
## colnames(63): 0_S_1_1 0_S_1_2 ... 3_S_3_2 3_S_3_3
## colData names(16): Image x_coord ... spot_height sample_id
## reducedDimNames(0):
## mainExpName: NULL
## altExpNames(0):
## spatialCoords names(0) :
## imgData names(0):

We can also create a list of SpatialExperiment objects, one for each of the 3 images we have.

Now we can use these individual image objects or the combined ‘pooled’ object for analysis.

Spatial data with image

Here we loop over all of the images in imglist to plot the expression of the insulin protein in each image. We expect insulin (or INS) to be highest in voxels containing islet cells, which we label using the label_column ‘IsletOrNot’ which was loaded into the metadata for us.

allimgs <- lapply(imglist, function(x) {
    spe <- img.spes[[x]]
    res <- spatial_heatmap(spe,
      feature = "INS",
      feature_type = "PrimaryGeneName",
      sample_id = x,
      image_id = "with_grid",
      label_column = "IsletOrNot",
      interactive = FALSE
  )
  return(res)
})

allimgs[[2]]

To go further and visualize entire pathways we need to first identify which groups of proteins are of interest using a more unsupervised approach.

Expression and pathway analysis

Now that we have the ability to overlay omic measurements with image ones, we can identify new features to plot and visualize them. First we can employ standard differential expression approaches using the voxel labels and the limma pathway.

Differential expression

First we want to identify specific proteins that are up-regulated in the islet cells (or regions labeled ‘islet’) compared to other regions. We can then plot the set of proteins.

islet_res <- calc_spatial_diff_ex(pooled.panc.spe,
    assay_name = "proteomics",
    log_transformed = FALSE,
    category_col = "IsletOrNot"
)

# we filter the significant proteins first
sig_prots <- subset(rowData(islet_res), 
                    NonIslet_vs_Islet.adj.P.Val.limma < 0.01)
# then separate into up-regulated and down-regulated based on fold chnage
ups <- subset(sig_prots, NonIslet_vs_Islet.logFC.limma > 0)
downs <- subset(sig_prots, NonIslet_vs_Islet.logFC.limma < 0)

print(paste(
  "We found", nrow(sig_prots), "significantly differentally \
  expressed proteins including",
  nrow(ups), "upregulated proteins and", nrow(downs), "downregulated"
))
## [1] "We found 241 significantly differentally \n  expressed proteins including 168 upregulated proteins and 73 downregulated"

Now we can plot those differentially expressed proteins across images.

Plot differentially expressed proteins

If we are interested in the combined expression of proteins we can also visualize those.

spe.plot <- img.spes[[2]]

hup <- spatial_heatmap(spe.plot,
    feature = rownames(downs),
    sample_id = "Image_1",
    image_id = "with_grid",
    label_column = "IsletOrNot",
    interactive = FALSE
)

hup

Pathway enrichment measurements

Now we can calculate the enriched pathways in the islets.

library(leapR)
data("krbpaths")
ora.res <- enrich_ora(islet_res, geneset = krbpaths, 
                      geneset_name = "krbpaths", 
                      feature_column = "PrimaryGeneName")
print(ora.res[grep("INSULIN", rownames(ora.res)), 
              c("ingroup_n", "pvalue", "BH_pvalue")])
##                                                                                                           ingroup_n
## KEGG_INSULIN_SIGNALING_PATHWAY                                                                                    5
## BIOCARTA_INSULIN_PATHWAY                                                                                          2
## REACTOME_GLUCOSE_REGULATION_OF_INSULIN_SECRETION                                                                 13
## REACTOME_INSULIN_SYNTHESIS_AND_SECRETION                                                                         24
## REACTOME_REGULATION_OF_INSULIN_LIKE_GROWTH_FACTOR_ACTIVITY_BY_INSULIN_LIKE_GROWTH_FACTOR_BINDING_PROTEINS         0
## REACTOME_REGULATION_OF_INSULIN_SECRETION                                                                         16
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_ACETYLCHOLINE                                                         7
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_GLUCAGON_LIKE_PEPTIDE_1                                              11
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_FREE_FATTY_ACIDS                                                      7
## REACTOME_INHIBITION_OF_INSULIN_SECRETION_BY_ADRENALINE_NORADRENALINE                                              4
##                                                                                                                 pvalue
## KEGG_INSULIN_SIGNALING_PATHWAY                                                                            1.000000e+00
## BIOCARTA_INSULIN_PATHWAY                                                                                  2.247236e-01
## REACTOME_GLUCOSE_REGULATION_OF_INSULIN_SECRETION                                                          5.549704e-02
## REACTOME_INSULIN_SYNTHESIS_AND_SECRETION                                                                  2.522014e-07
## REACTOME_REGULATION_OF_INSULIN_LIKE_GROWTH_FACTOR_ACTIVITY_BY_INSULIN_LIKE_GROWTH_FACTOR_BINDING_PROTEINS 1.000000e+00
## REACTOME_REGULATION_OF_INSULIN_SECRETION                                                                  3.897737e-02
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_ACETYLCHOLINE                                                 1.077909e-04
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_GLUCAGON_LIKE_PEPTIDE_1                                       9.083131e-06
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_FREE_FATTY_ACIDS                                              2.897170e-05
## REACTOME_INHIBITION_OF_INSULIN_SECRETION_BY_ADRENALINE_NORADRENALINE                                      1.628147e-02
##                                                                                                              BH_pvalue
## KEGG_INSULIN_SIGNALING_PATHWAY                                                                            1.0000000000
## BIOCARTA_INSULIN_PATHWAY                                                                                  0.9987657450
## REACTOME_GLUCOSE_REGULATION_OF_INSULIN_SECRETION                                                          0.7062802680
## REACTOME_INSULIN_SYNTHESIS_AND_SECRETION                                                                  0.0002100838
## REACTOME_REGULATION_OF_INSULIN_LIKE_GROWTH_FACTOR_ACTIVITY_BY_INSULIN_LIKE_GROWTH_FACTOR_BINDING_PROTEINS 1.0000000000
## REACTOME_REGULATION_OF_INSULIN_SECRETION                                                                  0.5797883996
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_ACETYLCHOLINE                                                 0.0128271210
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_GLUCAGON_LIKE_PEPTIDE_1                                       0.0037831242
## REACTOME_REGULATION_OF_INSULIN_SECRETION_BY_FREE_FATTY_ACIDS                                              0.0070612576
## REACTOME_INHIBITION_OF_INSULIN_SECRETION_BY_ADRENALINE_NORADRENALINE                                      0.3686245089

Pathway plotting

We know that there are significantly enriched pathways in insulin secretion, so let’s plot those.

secprots <- ora.res["REACTOME_GLUCOSE_REGULATION_OF_INSULIN_SECRETION", ] |>
    dplyr::select(ingroupnames) |>
    unlist() |>
    strsplit(split = ", ") |>
    unlist()

spe.plot <- img.spes[[2]]

hup <- spatial_heatmap(spe.plot,
    feature = secprots,
    sample_id = "Image_1",
    image_id = "with_grid",
    feature_type = "PrimaryGeneName",
    label_column = "IsletOrNot",
    plot_title = "Glucose regulation proteins",
    interactive = FALSE
)

hup

The average expression of the 20 proteins selected is shown to be higher in islet cells than adjacent cells.

Distance based measurements

We can also identify features that are correlated with distance to a feature or a gradient in the sample. This will provide input to rank-based statistical tools that can help identify pathways.

Distance based measurements

First we identify a specific feature, the Islet cell, and use that to identify proteins correlated with distance from the islet in each image. Proteins with a negative correlation are decreasing in expression as they are farther from the islet cells.

## for each image, let's compute the distance of each voxel to 
## the one labeled 'Islet'
img.rank <- distance_based_analysis(img.spes[[3]], "proteomics",
      sampleCategoryCol = "IsletOrNot",
      sampleCategoryValue = "Islet"
    )


## now we have the distances, let's plot some interesting proteins
negProts <- rowData(img.rank) |>
  subset(IsletDistancespearmanPval < 0.01) |>
  as.data.frame() |>
  dplyr::arrange(IsletDistancespearmanCor)

print(head(negProts))
##                                   pancProts  Entry   EntryName
## sp|P37108|SRP14_HUMAN sp|P37108|SRP14_HUMAN P37108 SRP14_HUMAN
## sp|P52209|6PGD_HUMAN   sp|P52209|6PGD_HUMAN P52209  6PGD_HUMAN
## sp|P78560|CRADD_HUMAN sp|P78560|CRADD_HUMAN P78560 CRADD_HUMAN
## sp|Q14019|COTL1_HUMAN sp|Q14019|COTL1_HUMAN Q14019 COTL1_HUMAN
## sp|Q9Y6X5|ENPP4_HUMAN sp|Q9Y6X5|ENPP4_HUMAN Q9Y6X5 ENPP4_HUMAN
## sp|P50552|VASP_HUMAN   sp|P50552|VASP_HUMAN P50552  VASP_HUMAN
##                                                                                                                                                                              ProteinNames
## sp|P37108|SRP14_HUMAN                                                                                 Signal recognition particle 14 kDa protein (SRP14) (18 kDa Alu RNA-binding protein)
## sp|P52209|6PGD_HUMAN                                                                                                      6-phosphogluconate dehydrogenase, decarboxylating (EC 1.1.1.44)
## sp|P78560|CRADD_HUMAN                                      Death domain-containing protein CRADD (Caspase and RIP adapter with death domain) (RIP-associated protein with a death domain)
## sp|Q14019|COTL1_HUMAN                                                                                                                                              Coactosin-like protein
## sp|Q9Y6X5|ENPP4_HUMAN Bis(5'-adenosyl)-triphosphatase ENPP4 (EC 3.6.1.29) (AP3A hydrolase) (AP3Aase) (Ectonucleotide pyrophosphatase/phosphodiesterase family member 4) (E-NPP 4) (NPP-4)
## sp|P50552|VASP_HUMAN                                                                                                                         Vasodilator-stimulated phosphoprotein (VASP)
##                                 GeneNames PrimaryGeneName
## sp|P37108|SRP14_HUMAN               SRP14           SRP14
## sp|P52209|6PGD_HUMAN             PGD PGDH             PGD
## sp|P78560|CRADD_HUMAN         CRADD RAIDD           CRADD
## sp|Q14019|COTL1_HUMAN           COTL1 CLP           COTL1
## sp|Q9Y6X5|ENPP4_HUMAN ENPP4 KIAA0879 NPP4           ENPP4
## sp|P50552|VASP_HUMAN                 VASP            VASP
##                       IsletDistancespearmanCor IsletDistancespearmanPval
## sp|P37108|SRP14_HUMAN               -0.9621024              3.361762e-05
## sp|P52209|6PGD_HUMAN                -0.9621024              3.361762e-05
## sp|P78560|CRADD_HUMAN               -0.9518763              2.686633e-04
## sp|Q14019|COTL1_HUMAN               -0.9518763              2.686633e-04
## sp|Q9Y6X5|ENPP4_HUMAN               -0.9518763              2.686633e-04
## sp|P50552|VASP_HUMAN                -0.9367839              1.965329e-04

It looks like SH3GL1 is correlated with distance to Islet in a few images.

Plot protein gradient

Now we can plot the expression of a protein suspected to have decreasing expression farther from the islet cells.We start with SRP14 and ENPP4

spatial_heatmap(img.spes[[3]],
    feature = "SRP14",
    feature_type = "PrimaryGeneName",
    sample_id = names(img.spes)[3],
    image_id = "with_grid",
    label_column = "IsletOrNot", interactive = FALSE
)

spatial_heatmap(img.spes[[3]],
    feature = "ENPP4",
    feature_type = "PrimaryGeneName",
    sample_id = names(img.spes)[3],
    image_id = "with_grid",
    label_column = "IsletOrNot", interactive = FALSE
)

The expression of this protein is lower farther from the Islet. Can we identify trends in the proteins?

Gradient-based enrichment

Rank-based pathway enrichment is a way to evaluate trends pathways that are over-represented in a ranked list of genes. The leapR pathway has such functionality and we can use the rankings as input.

library(leapR)
data("krbpaths")

spe <- img.rank
enriched.paths <- enrich_gradient(spe,
    geneset = krbpaths,
    method = 'ks',
    feature_column = "PrimaryGeneName", # mapped to enrichment data
    ranking_column = "IsletDistancespearmanCor"
)
enriched.paths[, "comp"] <- rep(names(img.spes)[[3]], nrow(enriched.paths))
enriched.paths[, "krbpaths"] <- rownames(enriched.paths)

enriched.paths |>
  subset(pvalue < 0.01) |>
  dplyr::arrange(BH_pvalue)
##                                                                       ingroup_n
## BIOCARTA_NFKB_PATHWAY                                                        12
## KEGG_APOPTOSIS                                                               38
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                  46
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                 26
## BIOCARTA_STRESS_PATHWAY                                                      15
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE        51
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                               42
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                 16
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                          59
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                      8
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                            43
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                      42
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                  48
##                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ingroupnames
## BIOCARTA_NFKB_PATHWAY                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      CHUK, NFKB1, NFKBIA, IRAK1, RELA, RIPK1, TRADD, TAB1, MYD88, TRAF6, IKBKG, IKBKB, MAP3K7, FADD, IL1A
## KEGG_APOPTOSIS                                                                                                                                                                                                                                                               DFFA, PIK3R2, CHUK, ENDOD1, AIFM1, CAPN1, PRKAR1A, PRKAR2A, PPP3CB, PRKACA, CAPN2, NFKB1, PRKACB, NFKBIA, PIK3R1, PRKAR2B, AKT1, AKT2, IRAK1, BID, PPP3R1, CYCS, RELA, BAX, BCL2L1, PPP3CA, TRAF2, ATM, BIRC2, RIPK1, ENDOG, TRADD, BAD, MYD88, IRAK4, IKBKG, IKBKB, CASP7, CASP8, CASP10, PRKACG, PIK3R3, PPP3CC, FADD, EXOG, IL1A, CASP6, PIK3CB
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                                                                                                                                                                                                                  PSMD11, PSMD12, PSMD9, PSMD14, PSMA7, PSMD3, PSMD10, UBB, PSMC3, PSMB1, CDK2, PSMA1, PSMA2, PSMA3, PSMA4, PSMB8, PSMB9, PSMA5, PSMB4, PSMB6, PSMB5, PSMC2, PSMB10, PSMC4, PSMD8, PSMB3, PSMB2, PSMD7, CCNH, MNAT1, PSMD4, PSMA6, PSME3, PSMC1, PSMC5, PSMC6, SKP1, PSME1, PSMD2, CUL1, PSMD6, PSMD5, PSMF1, PSMB7, PSMD1, PSME2, PSMD13, RB1, CDK7
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                                                                                                                                                                                                                                                                                                                                                                                         SDHD, IDH3B, CS, IDH1, FH, PDHA1, DLD, DLAT, PDHB, PC, SDHB, SDHA, PCK1, DLST, MDH1, MDH2, IDH2, IDH3A, IDH3G, ACLY, SUCLG1, OGDH, PCK2, SUCLG2, SDHC, ACO2, SUCLA2, OGDHL
## BIOCARTA_STRESS_PATHWAY                                                                                                                                                                                                                                                                                                                                                                                                                                                                             CHUK, JUN, NFKB1, NFKBIA, MAPK8, MAP2K4, MAP2K3, MAP2K6, CRADD, RELA, TRAF2, RIPK1, TRADD, MAPK14, IKBKG, IKBKB, ATF1, TANK
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE                                                                                                                                      PSMD11, PSMD12, PSMD9, PSMD14, PSMA7, PSMD3, BUB3, PSMD10, CDK1, UBB, PSMC3, PSMB1, CDK2, PSMA1, PSMA2, PSMA3, PSMA4, PSMB8, PSMB9, PSMA5, PSMB4, PSMB6, PSMB5, CDC27, PSMC2, PSMB10, PSMC4, PSMD8, PSMB3, PSMB2, PSMD7, PSMD4, PSMA6, PSME3, PSMC1, PSMC5, PSMC6, SKP1, PSME1, CDC16, PSMD2, MAD2L1, CUL1, PSMD6, PSMD5, PSMF1, PSMB7, PSMD1, CDC23, PSME2, PSMD13, UBE2E1, ANAPC1, ANAPC7, ANAPC2, ANAPC10, UBE2D1
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                                                                                                                                                                                                                                                                  PSMD11, PSMD12, PSMD9, PSMD14, PSMA7, PSMD3, PSMD10, NQO1, PSMC3, PSMB1, PSMA1, PSMA2, PSMA3, PSMA4, PSMB8, PSMB9, PSMA5, PSMB4, PSMB6, PSMB5, PSMC2, PSMB10, PSMC4, PSMD8, PSMB3, PSMB2, PSMD7, OAZ1, PSMD4, PSMA6, PSME3, PSMC1, PSMC5, PSMC6, PSME1, PSMD2, PSMD6, PSMD5, PSMF1, PSMB7, PSMD1, PSME2, PSMD13
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                                                                                                                                                                                                                                                                                                                                                                                                                                        GLS, GLUD1, CA2, ATP1A1, ATP1B1, CA4, AQP1, PCK1, MDH1, GLUD2, ATP1B3, FXYD2, PCK2, SLC38A3, SLC25A10, GLS2, SLC4A4, ATP1A3
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   PIK3R2, MAP2K7, MAPK13, RIPK2, NRAS, RAF1, JUN, CALM1, NFKB1, NFKBIA, YWHAQ, MAPK3, PIK3R1, MAPK1, SHC1, AKT1, AKT2, YWHAB, MAP2K2, CSK, MAPK8, MAPK9, CRK, CRKL, MAPKAPK2, PSEN1, GSK3B, IRAK1, RPS6KA3, ARHGDIA, ARHGDIB, CDC42, RAP1B, RHOA, YWHAG, YWHAE, GRB2, RAC1, YWHAZ, MAP2K1, RELA, YWHAH, PRKCD, PTPN11, BAX, CAMK2B, CAMK2G, CAMK2D, PDK1, RPS6KA2, RPS6KA1, NFKBIB, MAPK14, BAD, SORT1, MAP3K5, IRAK4, RPS6KA6, KIDINS220, TRAF6, IKBKB, FOXO3, HRAS, NGFR, BRAF, CALML3, RAP1A, CALML5, MAGED1, PLCG2, PIK3R3, NFKBIE, PIK3CB, KRAS, PLCG1
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           AKT1, YWHAB, MAPK8, BID, PPP3R1, DYNLL1, BAD, DYNLL2, PPP3CC
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                                                                                                                                                                                                                                                    PSMD11, PSMD12, PSMD9, PSMD14, PSMA7, PSMD3, PSMD10, UBB, PSMC3, PSMB1, CDK2, PSMA1, PSMA2, PSMA3, PSMA4, PSMB8, PSMB9, PSMA5, PSMB4, PSMB6, PSMB5, PSMC2, PSMB10, PSMC4, PSMD8, PSMB3, PSMB2, PSMD7, PSMD4, PSMA6, PSME3, PSMC1, PSMC5, PSMC6, SKP1, PSME1, PSMD2, CUL1, PSMD6, PSMD5, PSMF1, PSMB7, PSMD1, PSME2, PSMD13
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                                                                                                                                                                             PPP1R12A, ROCK2, GNAS, RAF1, PLA2G1B, CALM1, ARAF, MYL6B, PRKCA, PRKACA, PRKACB, MYL9, MAPK3, MAPK1, GNA11, GUCY1A2, MYH11, MAP2K2, PPP1CC, GNAQ, MYL6, RHOA, PPP1CA, PPP1CB, ACTA2, PLCB3, MAP2K1, GNA12, PRKCD, CALD1, ROCK1, PRKG1, GNA13, ITPR2, ITPR1, MYLK, ARHGEF1, PPP1R14A, PLCB1, ARHGEF12, BRAF, CALML3, ITPR3, CALML5, PLA2G2D, PRKACG, PPP1R12B, PRKCE, PLCB4, ARHGEF11, ADCY6
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                                                                                                                                                                  PSMD11, PSMD12, PSMD9, PSMD14, PSMA7, PSMD3, BUB3, PSMD10, CDK1, UBB, PSMC3, PSMB1, PSMA1, PSMA2, PSMA3, PSMA4, PSMB8, PSMB9, PSMA5, PSMB4, PSMB6, PSMB5, CDC27, PSMC2, PSMB10, PSMC4, PSMD8, PSMB3, PSMB2, PSMD7, PSMD4, PSMA6, PSME3, PSMC1, PSMC5, PSMC6, PSME1, CDC16, PSMD2, MAD2L1, PSMD6, PSMD5, PSMF1, PSMB7, PSMD1, CDC23, PSME2, PSMD13, UBE2E1, ANAPC1, ANAPC7, ANAPC2, ANAPC10, UBE2D1
##                                                                       ingroup_mean
## BIOCARTA_NFKB_PATHWAY                                                   -0.9666485
## KEGG_APOPTOSIS                                                          -0.4769082
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_             -0.4340674
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                            -0.5586684
## BIOCARTA_STRESS_PATHWAY                                                 -0.5554352
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE   -0.4333342
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                          -0.3872065
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                            -0.5898146
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                     -0.3309119
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                -0.9133547
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                       -0.4132140
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                 -0.3402784
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A             -0.3990574
##                                                                       outgroup_n
## BIOCARTA_NFKB_PATHWAY                                                       6653
## KEGG_APOPTOSIS                                                              6653
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                 6653
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                6653
## BIOCARTA_STRESS_PATHWAY                                                     6653
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE       6653
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                              6653
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                6653
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                         6653
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                    6653
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                           6653
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                     6653
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                 6653
##                                                                       outgroup_mean
## BIOCARTA_NFKB_PATHWAY                                                   0.002190291
## KEGG_APOPTOSIS                                                          0.003438807
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_             0.003794583
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                            0.002749977
## BIOCARTA_STRESS_PATHWAY                                                 0.001574065
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE   0.004203927
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                          0.003088240
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                            0.001783264
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                     0.003719528
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                0.001378649
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                       0.003374777
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                 0.002713956
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A             0.003641589
##                                                                           zscore
## BIOCARTA_NFKB_PATHWAY                                                 -1.2100054
## KEGG_APOPTOSIS                                                        -0.5550717
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_           -0.4487281
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                          -0.6356013
## BIOCARTA_STRESS_PATHWAY                                               -0.4717361
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE -0.4275025
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                        -0.4063364
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                          -0.6804846
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   -0.2950585
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                              -1.1230686
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                     -0.4191580
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                               -0.3932963
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A           -0.3963246
##                                                                          oddsratio
## BIOCARTA_NFKB_PATHWAY                                                 -0.352006404
## KEGG_APOPTOSIS                                                        -0.177630591
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_           -0.035029623
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                          -0.109121028
## BIOCARTA_STRESS_PATHWAY                                               -0.174363721
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE -0.069925263
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                         0.007407511
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                          -0.165198973
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   -0.123566497
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                              -0.274408753
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                     -0.011521398
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                               -0.097412306
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A           -0.062994096
##                                                                            pvalue
## BIOCARTA_NFKB_PATHWAY                                                 0.001038605
## KEGG_APOPTOSIS                                                        0.003005928
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_           0.003978543
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                          0.004268044
## BIOCARTA_STRESS_PATHWAY                                               0.004632733
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE 0.004641338
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                        0.005209758
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                          0.006106393
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   0.006361512
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                              0.008037105
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                     0.008192979
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                               0.008713546
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A           0.009351959
##                                                                       BH_pvalue
## BIOCARTA_NFKB_PATHWAY                                                 0.3809652
## KEGG_APOPTOSIS                                                        0.3809652
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_           0.3809652
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                          0.3809652
## BIOCARTA_STRESS_PATHWAY                                               0.3809652
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE 0.3809652
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                        0.3809652
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                          0.3809652
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   0.3809652
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                              0.3809652
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                     0.3809652
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                               0.3809652
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A           0.3809652
##                                                                       SignedBH_pvalue
## BIOCARTA_NFKB_PATHWAY                                                      -0.3809652
## KEGG_APOPTOSIS                                                             -0.3809652
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                -0.3809652
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                               -0.3809652
## BIOCARTA_STRESS_PATHWAY                                                    -0.3809652
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE      -0.3809652
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                             -0.3809652
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                               -0.3809652
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                        -0.3809652
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                   -0.3809652
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                          -0.3809652
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                    -0.3809652
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                -0.3809652
##                                                                       background_n
## BIOCARTA_NFKB_PATHWAY                                                           NA
## KEGG_APOPTOSIS                                                                  NA
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                     NA
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                    NA
## BIOCARTA_STRESS_PATHWAY                                                         NA
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE           NA
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                                  NA
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                    NA
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                             NA
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                        NA
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                               NA
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                         NA
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                     NA
##                                                                       background_mean
## BIOCARTA_NFKB_PATHWAY                                                              NA
## KEGG_APOPTOSIS                                                                     NA
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                        NA
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                       NA
## BIOCARTA_STRESS_PATHWAY                                                            NA
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE              NA
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                                     NA
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                       NA
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                                NA
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                           NA
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                                  NA
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                            NA
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                        NA
##                                                                          comp
## BIOCARTA_NFKB_PATHWAY                                                 Image_2
## KEGG_APOPTOSIS                                                        Image_2
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_           Image_2
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                          Image_2
## BIOCARTA_STRESS_PATHWAY                                               Image_2
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE Image_2
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                        Image_2
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                          Image_2
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                   Image_2
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                              Image_2
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                     Image_2
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                               Image_2
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A           Image_2
##                                                                                                                                    krbpaths
## BIOCARTA_NFKB_PATHWAY                                                                                                 BIOCARTA_NFKB_PATHWAY
## KEGG_APOPTOSIS                                                                                                               KEGG_APOPTOSIS
## REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_                     REACTOME_CYCLIN_E_ASSOCIATED_EVENTS_DURING_G1_S_TRANSITION_
## KEGG_CITRATE_CYCLE_TCA_CYCLE                                                                                   KEGG_CITRATE_CYCLE_TCA_CYCLE
## BIOCARTA_STRESS_PATHWAY                                                                                             BIOCARTA_STRESS_PATHWAY
## REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE REACTOME_REGULATION_OF_APC_ACTIVATORS_BETWEEN_G1_S_AND_EARLY_ANAPHASE
## REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE                                               REACTOME_REGULATION_OF_ORNITHINE_DECARBOXYLASE
## KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION                                                   KEGG_PROXIMAL_TUBULE_BICARBONATE_RECLAMATION
## KEGG_NEUROTROPHIN_SIGNALING_PATHWAY                                                                     KEGG_NEUROTROPHIN_SIGNALING_PATHWAY
## REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS                                                           REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS
## REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21                                         REACTOME_SCF_SKP2_MEDIATED_DEGRADATION_OF_P27_P21
## KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION                                                             KEGG_VASCULAR_SMOOTH_MUSCLE_CONTRACTION
## REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A                     REACTOME_CDC20_PHOSPHO_APC_MEDIATED_DEGRADATION_OF_CYCLIN_A

We can see that numerous pathways are coming up as enriched across images, including ribosomal and translation related pathways. Now we can select proteins from a particular pathway and visualize those as well.

Plotting pathways from gradient

rprots <- subset(enriched.paths, krbpaths == "REACTOME_ACTIVATION_OF_BH3_ONLY_PROTEINS") |>
    dplyr::select(comp, ingroupnames)

rprots <- unlist(strsplit(rprots[1, 2], split = ", "))

spatial_heatmap(img.rank,
    feature = rprots,
    feature_type = "PrimaryGeneName",
    sample_id = names(img.spes)[3],
    image_id = "with_grid",
    label_column = "IsletOrNot", interactive = FALSE
)

This shows the ribosomal protein expression across the image.

Network plotting

We can also look at the correlation of the ribosomal proteins in a graph. The correlation code takes a while but then we can reduce the graph to the proteins we are most interested in, or those that are most correlated.

## 
## Attaching package: 'tidygraph'
## The following objects are masked from 'package:IRanges':
## 
##     active, slice
## The following objects are masked from 'package:S4Vectors':
## 
##     active, rename
## The following object is masked from 'package:stats':
## 
##     filter
## Loading required package: ggplot2
##correlation analysis can be slow, so let's only evaluate the top 1000 most variable proteins
varprots = apply(assay(img.spes[[3]]),1,var,na.rm = TRUE) |>
  sort(decreasing = TRUE) |>
  names()

full_graph <- spatial_network(img.spes[[3]],target_features = rprots,
                              'proteomics','PrimaryGeneName')
## Joining with `by = join_by(rowval)`
##how subset for only those 81 proteins
rgraph <- full_graph |>
  tidygraph::activate(nodes) |>
  dplyr::filter(name %in% rprots) |>#[sample(20)]) |>
  tidygraph::activate(edges) |>
  dplyr::filter(abs(corval) > 0.25)

##then we can plot
ggraph::ggraph(rgraph) + 
   geom_edge_link(aes(colour = corval)) + 
   geom_node_point() + 
   geom_node_label(aes(label = name))
## Using "stress" as default layout

Here are the highly correlated edges between the proteins selected in the cytokine pathway.

Summary

This vignette shows various functions to apply in managing spatial proteomics data in spammR.

References

  1. Gosline et al.
  2. Spatial Experiment

Session info

## R version 4.6.0 (2026-04-24)
## Platform: x86_64-pc-linux-gnu
## Running under: Ubuntu 24.04.4 LTS
## 
## Matrix products: default
## BLAS:   /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3 
## LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.26.so;  LAPACK version 3.12.0
## 
## locale:
##  [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8       
##  [4] LC_COLLATE=C.UTF-8     LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8   
##  [7] LC_PAPER=C.UTF-8       LC_NAME=C              LC_ADDRESS=C          
## [10] LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C   
## 
## time zone: UTC
## tzcode source: system (glibc)
## 
## attached base packages:
## [1] stats4    stats     graphics  grDevices utils     datasets  methods  
## [8] base     
## 
## other attached packages:
##  [1] ggraph_2.2.2                ggplot2_4.0.3              
##  [3] tidygraph_1.3.1             leapR_1.0.0                
##  [5] BiocFileCache_3.2.0         dbplyr_2.5.2               
##  [7] spammR_0.99.21              limma_3.68.2               
##  [9] SpatialExperiment_1.22.0    SingleCellExperiment_1.34.0
## [11] SummarizedExperiment_1.42.0 Biobase_2.72.0             
## [13] GenomicRanges_1.64.0        Seqinfo_1.2.0              
## [15] IRanges_2.46.0              S4Vectors_0.50.1           
## [17] BiocGenerics_0.58.1         generics_0.1.4             
## [19] MatrixGenerics_1.24.0       matrixStats_1.5.0          
## [21] BiocStyle_2.40.0           
## 
## loaded via a namespace (and not attached):
##   [1] RColorBrewer_1.1-3  jsonlite_2.0.0      wk_0.9.5           
##   [4] magrittr_2.0.5      magick_2.9.1        farver_2.1.2       
##   [7] rmarkdown_2.31      fs_2.1.0            ragg_1.5.2         
##  [10] vctrs_0.7.3         spdep_1.4-2         memoise_2.0.1      
##  [13] rstatix_0.7.3       htmltools_0.5.9     S4Arrays_1.12.0    
##  [16] curl_7.1.0          broom_1.0.13        s2_1.1.9           
##  [19] SparseArray_1.12.2  Formula_1.2-5       sass_0.4.10        
##  [22] spData_2.3.5        KernSmooth_2.23-26  bslib_0.11.0       
##  [25] htmlwidgets_1.6.4   desc_1.4.3          httr2_1.2.2        
##  [28] impute_1.86.0       plotly_4.12.0       cachem_1.1.0       
##  [31] igraph_2.3.1        lifecycle_1.0.5     pkgconfig_2.0.3    
##  [34] Matrix_1.7-5        R6_2.6.1            fastmap_1.2.0      
##  [37] digest_0.6.39       ggnewscale_0.5.2    textshaping_1.0.5  
##  [40] RSQLite_3.52.0      ggpubr_0.6.3        filelock_1.0.3     
##  [43] labeling_0.4.3      httr_1.4.8          polyclip_1.10-7    
##  [46] abind_1.4-8         compiler_4.6.0      proxy_0.4-29       
##  [49] bit64_4.8.2         withr_3.0.2         S7_0.2.2           
##  [52] backports_1.5.1     carData_3.0-6       viridis_0.6.5      
##  [55] DBI_1.3.0           ggforce_0.5.0       ggsignif_0.6.4     
##  [58] MASS_7.3-65         rappdirs_0.3.4      DelayedArray_0.38.1
##  [61] rjson_0.2.23        classInt_0.4-11     tools_4.6.0        
##  [64] units_1.0-1         otel_0.2.0          glue_1.8.1         
##  [67] grid_4.6.0          sf_1.1-1            gtable_0.3.6       
##  [70] tzdb_0.5.0          class_7.3-23        tidyr_1.3.2        
##  [73] data.table_1.18.4   hms_1.1.4           sp_2.2-1           
##  [76] car_3.1-5           XVector_0.52.0      ggrepel_0.9.8      
##  [79] pillar_1.11.1       dplyr_1.2.1         tweenr_2.0.3       
##  [82] lattice_0.22-9      bit_4.6.0           deldir_2.0-4       
##  [85] tidyselect_1.2.1    knitr_1.51          gridExtra_2.3      
##  [88] bookdown_0.46       xfun_0.57           graphlayouts_1.2.3 
##  [91] statmod_1.5.2       lazyeval_0.2.3      yaml_2.3.12        
##  [94] boot_1.3-32         evaluate_1.0.5      tibble_3.3.1       
##  [97] BiocManager_1.30.27 cli_3.6.6           reticulate_1.46.0  
## [100] systemfonts_1.3.2   jquerylib_0.1.4     Rcpp_1.1.1-1.1     
## [103] png_0.1-9           pkgdown_2.2.0       readr_2.2.0        
## [106] blob_1.3.0          viridisLite_0.4.3   scales_1.4.0       
## [109] e1071_1.7-17        purrr_1.2.2         rlang_1.2.0