Protein classes

The protein classes are groups of genes classified based on features such as function, cellular compartment, evidence or involvement in disease. The plots in the Protein class focus box summarise data on expression profiles, GO-term enrichment, protein evidence, predicted location and experimental subcellular location for the genes in the protein class selected in the Protein class drop-down menu. The expression classification data underlying the pie charts and bar plots displayed for each protein class can be changed between tissue data, single cell type data and cell line cancer group data using the top right slider. Gene lists corresponding to the displayed data can be obtained by clicking on numbers in, or parts of, pie charts, bar plots and treemap plots.


Protein class focus
Protein class:        Data set:
Tissue
Single cell
Cell line

In Table 1 each row shows the total number of genes for a particular protein class and the number of genes with experimental data from in-house antibody-based profiling. All protein classes have been categorized into three different tables: "Function and compartment based", "Disease and drug related", and "Evidence based". Clicking any of the numbers in the tables results in a search result with the selection of genes belonging to the class along with additional data. For each class, where applicable, there is also a link to the original source of the gene list. Some protein classes contain a selection of subclasses which unfolds when the parent class (shown in bold and with arrows) is clicked. Some subclasses (marked with an asterisk) are not included in the total number of genes for the parent class.

Table 1: All protein classes

Protein class No of genes No of genes
with antibodies
Source

Function and compartment basedi

Enzymes 3777 3539
Metabolic proteins 2912 2714 Metabolic Atlas
CD markers 384 343 UniProt
Blood group antigen proteins 31 27 UniProt
Nuclear receptors 49 48 NucleaRDB
Transporters 2138 1918 TCDB
Ribosomal proteins 180 176 UniProt
G-protein coupled receptors 743 383 UniProt
Voltage-gated ion channels 132 110 IUPHAR-DB
Predicted membrane proteins 5573 4556 MDM
Predicted secreted proteins 1895 1473 HPA
Predicted intracellular proteins 15912 14249 HPA
Plasma proteins 3750 3575 Plasma Proteome Database
Transcription factors 1485 1374 UMG
RNA polymerase related proteins 34 34 KEGG
RAS pathway related proteins 235 212 KEGG
Citric acid cycle related proteins 30 29 KEGG
Immunoglobulin genes 214 49 Ensembl
T-cell receptor genes 196 0 Ensembl

Disease and drug relatedi

Cancer-related genes 1672 1592
Candidate cardiovascular disease genes 155 144 Plasma Proteome Institute
Disease related genes 4906 4604 UniProt
FDA approved drug targets 854 769 Drugbank
Potential drug targets 1757 1647 HPA
Human disease related genes 4555 4259 KEGG

Evidence basedi

Mapped to UniProt SWISS-PROT 19325 17027 UniProt
Mapped to neXtProt 19266 17008 neXtProt
Protein evidence (Kim et al 2014) 12271 11704 Kim et al 2014
Protein evidence (Ezkurdia et al 2014) 11724 11270 Ezkurdia et al 2014
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