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Guidelines

MIRAGE

cathepsin K

Summary

Gene Symbol

Ctsk

Organism

Mus musculus (house mouse)

External Links

NCBI Gene

13038

PubChem

13038

Alliance of Genome Resources

MGI:107823

Annotation

Keyword

3D-structure
Cell membrane
Disulfide bond
Glycoprotein
Lysosome
Reference proteome
Secreted
Signal
Thiol protease
Zymogen

Proteins

Displaying **all 2** entries
UniProt	Protein Name
P55097
Q545T0

Annotation information from UniProt.

Gene Ontology (GO)

Displaying entries **1 - 5** of 20 in total

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GO Term	Evidence Code	PMID
intramembranous ossification	IEA
proteolysis	ISO
thyroid hormone generation	ISS
thyroid hormone generation	ISO
thyroid hormone generation	IMP	12782676

GO Hierarchy

biological process

metabolic process [inference]

nitrogen compound metabolic process [inference]

organonitrogen compound metabolic process [inference]

cellular modified amino acid metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

protein metabolic process [inference]

proteolysis involved in protein catabolic process

catabolic process [inference]

collagen catabolic process

collagen metabolic process [inference]

collagen catabolic process

hormone metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

cellular metabolic process [inference]

cellular modified amino acid metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

cellular aromatic compound metabolic process [inference]

phenol-containing compound metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

primary metabolic process [inference]

protein metabolic process [inference]

proteolysis involved in protein catabolic process

organic substance metabolic process [inference]

macromolecule metabolic process [inference]

protein metabolic process [inference]

proteolysis involved in protein catabolic process

organic cyclic compound metabolic process [inference]

phenol-containing compound metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

organonitrogen compound metabolic process [inference]

cellular modified amino acid metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

protein metabolic process [inference]

proteolysis involved in protein catabolic process

organic hydroxy compound metabolic process [inference]

phenol-containing compound metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

cellular process [inference]

cell communication [inference]

cellular response to extracellular stimulus [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular metabolic process [inference]

cellular modified amino acid metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

cellular aromatic compound metabolic process [inference]

phenol-containing compound metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

cellular developmental process [inference]

cell differentiation [inference]

leukocyte differentiation [inference]

mononuclear cell differentiation

cellular response to stimulus [inference]

cellular response to extracellular stimulus [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular response to stress [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular response to chemical stimulus [inference]

cellular response to organic substance [inference]

cellular response to cytokine stimulus [inference]

cellular response to tumor necrosis factor

multicellular organismal process [inference]

ossification [inference]

direct ossification [inference]

intramembranous ossification

multicellular organismal-level homeostasis [inference]

anatomical structure homeostasis [inference]

tissue homeostasis [inference]

bone resorption

developmental process [inference]

cellular developmental process [inference]

cell differentiation [inference]

leukocyte differentiation [inference]

mononuclear cell differentiation

homeostatic process [inference]

multicellular organismal-level homeostasis [inference]

anatomical structure homeostasis [inference]

tissue homeostasis [inference]

bone resorption

response to stimulus [inference]

response to stress [inference]

cellular response to stress [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

response to starvation [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

response to zinc ion starvation [inference]

cellular response to zinc ion starvation

response to external stimulus [inference]

response to extracellular stimulus [inference]

response to nutrient levels [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

response to starvation [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

response to zinc ion starvation [inference]

cellular response to zinc ion starvation

cellular response to extracellular stimulus [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular response to external stimulus [inference]

cellular response to extracellular stimulus [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

response to endogenous stimulus [inference]

response to hormone [inference]

response to peptide hormone [inference]

response to insulin

response to growth factor [inference]

cellular response to growth factor stimulus [inference]

cellular response to transforming growth factor beta stimulus

response to transforming growth factor beta [inference]

cellular response to transforming growth factor beta stimulus

cellular response to endogenous stimulus [inference]

cellular response to growth factor stimulus [inference]

cellular response to transforming growth factor beta stimulus

response to chemical [inference]

response to organic substance [inference]

response to hormone [inference]

response to peptide hormone [inference]

response to insulin

response to organonitrogen compound [inference]

response to peptide [inference]

response to peptide hormone [inference]

response to insulin

response to organic cyclic compound

response to cytokine [inference]

response to tumor necrosis factor [inference]

cellular response to tumor necrosis factor

cellular response to cytokine stimulus [inference]

cellular response to tumor necrosis factor

cellular response to organic substance [inference]

cellular response to cytokine stimulus [inference]

cellular response to tumor necrosis factor

response to alcohol [inference]

response to ethanol

cellular response to chemical stimulus [inference]

cellular response to organic substance [inference]

cellular response to cytokine stimulus [inference]

cellular response to tumor necrosis factor

response to nitrogen compound [inference]

response to organonitrogen compound [inference]

response to peptide [inference]

response to peptide hormone [inference]

response to insulin

response to oxygen-containing compound [inference]

response to alcohol [inference]

response to ethanol

response to peptide [inference]

response to peptide hormone [inference]

response to insulin

cellular response to stimulus [inference]

cellular response to extracellular stimulus [inference]

cellular response to nutrient levels [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular response to stress [inference]

cellular response to starvation [inference]

cellular response to zinc ion starvation

cellular response to chemical stimulus [inference]

cellular response to organic substance [inference]

cellular response to cytokine stimulus [inference]

cellular response to tumor necrosis factor

biological regulation [inference]

regulation of biological process [inference]

negative regulation of biological process [inference]

negative regulation of developmental process [inference]

negative regulation of cartilage development

negative regulation of multicellular organismal process [inference]

negative regulation of cartilage development

regulation of developmental process [inference]

negative regulation of developmental process [inference]

negative regulation of cartilage development

regulation of multicellular organismal development [inference]

regulation of cartilage development [inference]

negative regulation of cartilage development

regulation of multicellular organismal process [inference]

negative regulation of multicellular organismal process [inference]

negative regulation of cartilage development

regulation of multicellular organismal development [inference]

regulation of cartilage development [inference]

negative regulation of cartilage development

regulation of biological quality [inference]

regulation of hormone levels [inference]

hormone metabolic process [inference]

thyroid hormone metabolic process [inference]

thyroid hormone generation

Displaying entries **1 - 5** of 11 in total

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GO Term	Evidence Code	PMID
extracellular space	ISO
extracellular space	IDA	12782676
extracellular space	IBA
nucleoplasm	ISO
nucleoplasm	IEA

GO Hierarchy

cellular component

cellular anatomical entity [inference]

membrane [inference]

plasma membrane region [inference]

apical plasma membrane

organelle [inference]

membrane-bounded organelle [inference]

intracellular membrane-bounded organelle

vacuole [inference]

lytic vacuole [inference]

lysosome

intracellular organelle [inference]

intracellular membrane-bounded organelle

vacuole [inference]

lytic vacuole [inference]

lysosome

side of membrane [inference]

external side of plasma membrane

Displaying entries **1 - 5** of 10 in total

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GO Term	Evidence Code	PMID
fibronectin binding	ISO
fibronectin binding	IEA
cysteine-type endopeptidase activity	ISO
cysteine-type endopeptidase activity	IBA
cysteine-type endopeptidase activity	IEA

GO Hierarchy

molecular function

catalytic activity [inference]

hydrolase activity [inference]

peptidase activity [inference]

endopeptidase activity [inference]

cysteine-type endopeptidase activity

cysteine-type peptidase activity

cysteine-type endopeptidase activity

catalytic activity, acting on a protein [inference]

peptidase activity [inference]

endopeptidase activity [inference]

cysteine-type endopeptidase activity

cysteine-type peptidase activity

cysteine-type endopeptidase activity

binding [inference]

protein binding [inference]

protein-containing complex binding [inference]

collagen binding

carbohydrate derivative binding [inference]

proteoglycan binding

Gene Ontology information from NCBI Gene and UniProt.

OrthoDB (Group)

Group level

Eukaryota

Group Name

Cathepsin S

Functional Category

E: Amino acid transport and metabolism
M: Cell wall/membrane/envelope biogenesis
O: Posttranslational modification, protein turnover, chaperones

Displaying **all 4** entries
Gene Ontology
cysteine-type endopeptidase activity
hydrolase activity
proteolysis involved in protein catabolic process
proteolysis

Displaying **all 8** entries
InterPro
Cathepsin propeptide inhibitor domain (I29)
Cysteine peptidase, asparagine active site
Cysteine peptidase, cysteine active site
Cysteine peptidase, histidine active site
Papain-like cysteine endopeptidase
Papain-like cysteine peptidase superfamily
Peptidase C1A, papain C-terminal
Peptidase C1A

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Acknowledgements

Supported by JST NBDC Grant Number JPMJND2204

Partly supported by NIH Common Fund Grant #1U01GM125267-01

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Last updated: December 8, 2025