Cathepsin S

mammalian protein found in Homo sapiens
Protein protein Q4217286

Facts

8 properties
Instance of
protein
Biological process
positive regulation of cation channel activity, antigen processing and presentation, adaptive immune response, antigen processing and presentation of exogenous peptide antigen via MHC class II, protein processing, extracellular matrix disassembly, proteolysis, toll-like receptor signaling pathway, antigen processing and presentation of peptide antigen, immune response, cellular response to thyroid hormone stimulus, collagen catabolic process, proteolysis involved in cellular protein catabolic process, basement membrane disassembly, response to acidic pH, neutrophil degranulation, proteolysis involved in cellular protein catabolic process[22][23][24][25][26][27][28][29][30][31][32][33][34][35]
Cell component
intracellular membrane-bounded organelle, extracellular region, endolysosome lumen, lysosomal lumen, lysosome, extracellular space, tertiary granule lumen, ficolin-1-rich granule lumen, extracellular space, lysosome, collagen-containing extracellular matrix, late endosome[12][13][14][15][16][17][18][19][20][21]
EC enzyme number
3.4.22.27[2]
Encoded by
CTSS[36]
Found in taxon
Homo sapiens[37]
Molecular function
fibronectin binding, cysteine-type peptidase activity, collagen binding, peptidase activity, cysteine-type endopeptidase activity, laminin binding, hydrolase activity, proteoglycan binding, serine-type endopeptidase activity, cysteine-type endopeptidase activity[3][4][5][6][7][8][9][10][11]
Physically interacts with
odanacatib[1]
🏷️ Also known as
en Cathepsin S en CTSS ru Катепсин C
🔖 Identifiers · 4
RefSeq protein ID
NP_001186668, NP_004070
UniProt protein ID
P25774

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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . IUPHAR/BPS Guide to PHARMACOLOGY. Retrieved . wikidata.org.
  2. [2] ↑ . UniProt. Retrieved . wikidata.org.
  3. [3] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  4. [4] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  5. [5] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  6. [6] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  7. [7] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  8. [8] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  9. [9] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  10. [10] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  11. [11] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  12. [12] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  13. [13] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  14. [14] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  15. [15] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  16. [16] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  17. [17] ↑ . Human colostrum: identification of minor proteins in the aqueous phase by proteomics. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  18. [18] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  19. [19] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  20. [20] ↑ . Proteomic characterization of human multiple myeloma bone marrow extracellular matrix.. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  21. [21] ↑ . Regulation of cathepsins S and L by cystatin F during maturation of dendritic cells. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  22. [22] ↑ . Proteolytic activation of the epithelial sodium channel (ENaC) by the cysteine protease cathepsin-S. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  23. [23] ↑ . Inhibitory p41 isoform of invariant chain and its potential target enzymes cathepsins L and H in distinct populations of macrophages in human lymph nodes. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  24. [24] ↑ . Inhibitory p41 isoform of invariant chain and its potential target enzymes cathepsins L and H in distinct populations of macrophages in human lymph nodes. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  25. [25] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  26. [26] ↑ . Proteolytic activation of the epithelial sodium channel (ENaC) by the cysteine protease cathepsin-S. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  27. [27] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  28. [28] ↑ . Molecular cloning and expression of human alveolar macrophage cathepsin S, an elastinolytic cysteine protease. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  29. [29] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  30. [30] ↑ . Essential role for cathepsin S in MHC class II-associated invariant chain processing and peptide loading. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  31. [31] ↑ . Human cathepsin S: chromosomal localization, gene structure, and tissue distribution. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  32. [32] ↑ . Cathepsin H regulated by the thyroid hormone receptors associate with tumor invasion in human hepatoma cells. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  33. [33] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  34. [34] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  35. [35] ↑ . Cleavage of nidogen-1 by cathepsin S impairs its binding to basement membrane partners. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  36. [36] ↑ . UniProt. Retrieved . wikidata.org.
  37. [37] ↑ . UniProt. Retrieved . wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Cathepsin S. Retrieved October 30, 2026, from https://4ort.xyz/entity/cathepsin-s
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BibTeX @misc{4ortxyz_cathepsin-s_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Cathepsin S}}, year = {2026}, url = {https://4ort.xyz/entity/cathepsin-s}, note = {Accessed: 2026-10-30}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 15w ago · Boghog · 2026-07-23 view diff on Wikidata ↗
    Physically interacts with → odanacatib
    UniProt protein ID → P25774
    EC enzyme number → 3.4.22.27
    RefSeq protein ID → NP_001186668, NP_004070
    + 11 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ EC enzyme number: 3.4.22.27, [[:toollabs:quickstatements/#/batch/261446|batch #261446]]"
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