MSstatsBioNet 1.0.0
Run this code below to install MSstatsBioNet from bioconductor
if (!require("BiocManager", quietly = TRUE)) {
install.packages("BiocManager")
}
BiocManager::install("MSstatsBioNet")The MSstatsBioNet package is a member of the MSstats family of packages.
It contains a set of functions for interpretation of mass spectrometry (MS)
statistical analysis results in the context of protein-protein interaction
networks. The package is designed to be used in conjunction with the
MSstats package.
We will be taking a subset of the dataset found in this paper.
input = data.table::fread(system.file(
"extdata/msstats.csv",
package = "MSstatsBioNet"
))library(MSstatsConvert)
msstats_imported = FragPipetoMSstatsFormat(input, use_log_file = FALSE)
#> INFO [2025-04-15 19:26:39] ** Raw data from FragPipe imported successfully.
#> INFO [2025-04-15 19:26:39] ** Using annotation extracted from quantification data.
#> INFO [2025-04-15 19:26:39] ** Run labels were standardized to remove symbols such as '.' or '%'.
#> INFO [2025-04-15 19:26:39] ** The following options are used:
#> - Features will be defined by the columns: PeptideSequence, PrecursorCharge, FragmentIon, ProductCharge
#> - Shared peptides will be removed.
#> - Proteins with single feature will not be removed.
#> - Features with less than 3 measurements across runs will be removed.
#> INFO [2025-04-15 19:26:39] ** Features with all missing measurements across runs are removed.
#> INFO [2025-04-15 19:26:39] ** Shared peptides are removed.
#> INFO [2025-04-15 19:26:39] ** Multiple measurements in a feature and a run are summarized by summaryforMultipleRows: max
#> INFO [2025-04-15 19:26:39] ** Features with one or two measurements across runs are removed.
#> INFO [2025-04-15 19:26:39] ** Run annotation merged with quantification data.
#> INFO [2025-04-15 19:26:39] ** Features with one or two measurements across runs are removed.
#> INFO [2025-04-15 19:26:39] ** Fractionation handled.
#> INFO [2025-04-15 19:26:39] ** Updated quantification data to make balanced design. Missing values are marked by NA
#> INFO [2025-04-15 19:26:39] ** Finished preprocessing. The dataset is ready to be processed by the dataProcess function.
head(msstats_imported)
#> ProteinName PeptideSequence PrecursorCharge FragmentIon ProductCharge
#> 1 P05023 AVAGDASESALLK 2 b12 1
#> 2 P05023 AVAGDASESALLK 2 b12 1
#> 3 P05023 AVAGDASESALLK 2 b12 1
#> 4 P05023 AVAGDASESALLK 2 b12 1
#> 5 P05023 AVAGDASESALLK 2 b12 1
#> 6 P05023 AVAGDASESALLK 2 b12 1
#> IsotopeLabelType Condition BioReplicate
#> 1 L NAT 1
#> 2 L T 1
#> 3 L NAT 2
#> 4 L T 2
#> 5 L NAT 3
#> 6 L T 3
#> Run Fraction Intensity
#> 1 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-00418_NAT 1 69915.91
#> 2 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-00418_T 1 101726.53
#> 3 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-00606_NAT 1 36215.18
#> 4 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-00606_T 1 24927.36
#> 5 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-01882_NAT 1 NA
#> 6 CPTAC_CCRCC_W_JHU_20190112_LUMOS_C3L-01882_T 1 NAWe will first convert the input data to a format that can be processed by
MSstats. In this example, the MetamorpheusToMSstatsFormat function is used
to convert the input data from Metamorpheus to MSstats format. The MSstats
format will contain the necessary information for downstream analysis, such
as peptide information, abundance values, run ID, and experimental annotation
information.
library(MSstats)
#>
#> Attaching package: 'MSstats'
#> The following object is masked from 'package:grDevices':
#>
#> savePlot
QuantData <- dataProcess(msstats_imported, use_log_file = FALSE)
#> INFO [2025-04-15 19:26:41] ** Log2 intensities under cutoff = 9.2885 were considered as censored missing values.
#> INFO [2025-04-15 19:26:41] ** Log2 intensities = NA were considered as censored missing values.
#> INFO [2025-04-15 19:26:41] ** Use all features that the dataset originally has.
#> INFO [2025-04-15 19:26:41]
#> # proteins: 10
#> # peptides per protein: 1-8
#> # features per peptide: 7-12
#> INFO [2025-04-15 19:26:41]
#> NAT T
#> # runs 5 5
#> # bioreplicates 5 5
#> # tech. replicates 1 1
#> INFO [2025-04-15 19:26:41] Some features are completely missing in at least one condition:
#> TALNHC(UniMod:4)NLC(UniMod:4)R_2_b5_1,
#> TALNHC(UniMod:4)NLC(UniMod:4)R_2_y2_1,
#> TALNHC(UniMod:4)NLC(UniMod:4)R_2_y3_1,
#> TALNHC(UniMod:4)NLC(UniMod:4)R_2_y5_1,
#> TALNHC(UniMod:4)NLC(UniMod:4)R_2_y6_1 ...
#> INFO [2025-04-15 19:26:41] == Start the summarization per subplot...
#>
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#> INFO [2025-04-15 19:26:42] == Summarization is done.
model <- groupComparison(
contrast.matrix = "pairwise",
data = QuantData,
use_log_file = FALSE
)
#> INFO [2025-04-15 19:26:42] == Start to test and get inference in whole plot ...
#>
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#> INFO [2025-04-15 19:26:42] == Comparisons for all proteins are done.
head(model$ComparisonResult)
#> Protein Label log2FC SE Tvalue DF pvalue adj.pvalue
#> 1 O00217 NAT vs T 2.0285031 0.4364177 4.648077 4 0.0096753522 0.013821932
#> 2 O00330 NAT vs T 1.3000941 0.1320659 9.844285 3 0.0022285171 0.004457034
#> 3 O60313 NAT vs T 0.9299641 0.2387992 3.894336 4 0.0176257617 0.019584180
#> 4 O60879 NAT vs T -1.9484511 0.1695323 -11.493098 4 0.0003271868 0.001635934
#> 5 O75306 NAT vs T 2.4745040 0.3530857 7.008225 4 0.0021825029 0.004457034
#> 6 P05023 NAT vs T 1.8391155 0.2122058 8.666660 4 0.0009753219 0.003251073
#> issue MissingPercentage ImputationPercentage
#> 1 NA 0.14166667 0.14166667
#> 2 NA 0.20833333 0.10833333
#> 3 NA 0.29756098 0.29756098
#> 4 NA 0.09583333 0.09583333
#> 5 NA 0.16111111 0.16111111
#> 6 NA 0.11702128 0.11702128Next, we will preprocess the data using the dataProcess function and perform
a statistical analysis using the groupComparison function. The output of
groupComparison is a table containing a list of differentially abundant
proteins with their associated p-values and log fold changes.
First, we need to convert the group comparison results to a format that can be
processed by INDRA. The getSubnetworkFromIndra function requires a table
containing HGNC IDs. We can use the annotateProteinInfoFromIndra function
to obtain these mappings.
In the below example, we convert uniprot IDs to their corresponding Hgnc IDs. We can also extract other information, such as hgnc gene name and protein function.
library(MSstatsBioNet)
annotated_df = annotateProteinInfoFromIndra(model$ComparisonResult, "Uniprot")
head(annotated_df)
#> Protein Label log2FC SE Tvalue DF pvalue adj.pvalue
#> 1 O00217 NAT vs T 2.0285031 0.4364177 4.648077 4 0.0096753522 0.013821932
#> 2 O00330 NAT vs T 1.3000941 0.1320659 9.844285 3 0.0022285171 0.004457034
#> 3 O60313 NAT vs T 0.9299641 0.2387992 3.894336 4 0.0176257617 0.019584180
#> 4 O60879 NAT vs T -1.9484511 0.1695323 -11.493098 4 0.0003271868 0.001635934
#> 5 O75306 NAT vs T 2.4745040 0.3530857 7.008225 4 0.0021825029 0.004457034
#> 6 P05023 NAT vs T 1.8391155 0.2122058 8.666660 4 0.0009753219 0.003251073
#> issue MissingPercentage ImputationPercentage UniprotId HgncId HgncName
#> 1 NA 0.14166667 0.14166667 O00217 7715 NDUFS8
#> 2 NA 0.20833333 0.10833333 O00330 21350 PDHX
#> 3 NA 0.29756098 0.29756098 O60313 8140 OPA1
#> 4 NA 0.09583333 0.09583333 O60879 2877 DIAPH2
#> 5 NA 0.16111111 0.16111111 O75306 7708 NDUFS2
#> 6 NA 0.11702128 0.11702128 P05023 799 ATP1A1
#> IsTranscriptionFactor IsKinase IsPhosphatase
#> 1 FALSE FALSE FALSE
#> 2 FALSE FALSE FALSE
#> 3 FALSE FALSE FALSE
#> 4 FALSE FALSE FALSE
#> 5 FALSE FALSE FALSE
#> 6 FALSE FALSE FALSEThe package provides a function getSubnetworkFromIndra that retrieves a
subnetwork of proteins from the INDRA database based on differential abundance
analysis results.
subnetwork <- getSubnetworkFromIndra(annotated_df, pvalueCutoff = 0.05)
#> Warning in getSubnetworkFromIndra(annotated_df, pvalueCutoff = 0.05): NOTICE: This function includes third-party software components
#> that are licensed under the BSD 2-Clause License. Please ensure to
#> include the third-party licensing agreements if redistributing this
#> package or utilizing the results based on this package.
#> See the LICENSE file for more details.
head(subnetwork$nodes)
#> id logFC pvalue hgncName
#> 3 O60313 0.9299641 0.01958418 OPA1
#> 7 P05067 0.7360012 0.02030666 APP
#> 8 P05090 0.5683951 0.01371505 APOD
head(subnetwork$edges)
#> source target interaction evidenceCount paperCount
#> 1 P05067 O60313 DecreaseAmount 5 2
#> 2 P05067 P05090 IncreaseAmount 1 1
#> evidenceLink
#> 1 https://db.indra.bio/statements/from_agents?subject=620@HGNC&object=8140@HGNC&format=html
#> 2 https://db.indra.bio/statements/from_agents?subject=620@HGNC&object=612@HGNC&format=html
#> sourceCounts
#> 1 {"reach": 2}
#> 2 {"reach": 1}This package is distributed under the Artistic-2.0 license. However, its dependencies may have different licenses. In this example, getSubnetworkFromIndra depends on INDRA, which is distributed under the BSD 2-Clause license. Furthermore, INDRA’s knowledge sources may have different licenses for commercial applications. Please refer to the INDRA README for more information on its knowledge sources and their associated licenses.
The function visualizeNetworks then takes the output of
getSubnetworkFromIndra and visualizes the subnetwork. The function requires
Cytoscape desktop to be open for the visualization to work.
visualizeNetworks(subnetwork$nodes, subnetwork$edges)
#> Warning in visualizeNetworks(subnetwork$nodes, subnetwork$edges): Visualization
#> is not available in non-interactive mode.In the network diagram displayed in Cytoscape, you should see two arrows connecting two nodes, P16050 and P84243. These arrows represent the interactions between these two proteins, notably activation and phosphorylation.
sessionInfo()
#> R version 4.5.0 RC (2025-04-04 r88126)
#> Platform: x86_64-pc-linux-gnu
#> Running under: Ubuntu 24.04.2 LTS
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#>
#> attached base packages:
#> [1] stats graphics grDevices utils datasets methods base
#>
#> other attached packages:
#> [1] MSstatsBioNet_1.0.0 MSstats_4.16.0 MSstatsConvert_1.18.0
#> [4] BiocStyle_2.36.0
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