Gene Gene information from NCBI Gene database.
Entrez ID 1513
Gene name Cathepsin K
Gene symbol CTSK
Synonyms (NCBI Gene)
CTS02CTSOCTSO1CTSO2PKNDPYCD
Chromosome 1
Chromosome location 1q21.3
Summary The protein encoded by this gene is a lysosomal cysteine proteinase involved in bone remodeling and resorption. This protein, which is a member of the peptidase C1 protein family, is predominantly expressed in osteoclasts. However, the encoded protein is
SNPs SNP information provided by dbSNP.
40
SNP ID Visualize variation Clinical significance Consequence
rs29001685 A>G Likely-pathogenic Coding sequence variant, missense variant
rs74315301 T>C Pathogenic Terminator codon variant, stop lost
rs74315302 C>G Pathogenic Missense variant, coding sequence variant
rs74315303 G>A,T Likely-pathogenic Stop gained, coding sequence variant, synonymous variant
rs74315304 G>A,T Likely-pathogenic Missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
84
miRTarBase ID miRNA Experiments Reference
MIRT038461 hsa-miR-296-3p CLASH 23622248
MIRT915948 hsa-miR-23a CLIP-seq
MIRT915949 hsa-miR-23b CLIP-seq
MIRT915950 hsa-miR-23c CLIP-seq
MIRT915951 hsa-miR-3154 CLIP-seq
Transcription factors Transcription factors information provided by TRRUST V2 database.
2
Transcription factor Regulation Reference
MITF Activation 21602817
SPI1 Unknown 15304486
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
48
GO ID Ontology Definition Evidence Reference
GO:0000423 Process Mitophagy HMP 24912190
GO:0001968 Function Fibronectin binding IEA
GO:0001968 Function Fibronectin binding IPI 22952693
GO:0004197 Function Cysteine-type endopeptidase activity IBA
GO:0004197 Function Cysteine-type endopeptidase activity IDA 22952693
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
601105 2536 ENSG00000143387
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P43235
Protein name Cathepsin K (EC 3.4.22.38) (Cathepsin O) (Cathepsin O2) (Cathepsin X)
Protein function Thiol protease involved in osteoclastic bone resorption and may participate partially in the disorder of bone remodeling. Displays potent endoprotease activity against fibrinogen at acid pH. May play an important role in extracellular matrix deg
PDB 1ATK , 1AU0 , 1AU2 , 1AU3 , 1AU4 , 1AYU , 1AYV , 1AYW , 1BGO , 1BY8 , 1MEM , 1NL6 , 1NLJ , 1Q6K , 1SNK , 1TU6 , 1U9V , 1U9W , 1U9X , 1VSN , 1YK7 , 1YK8 , 1YT7 , 2ATO , 2AUX , 2AUZ , 2BDL , 2R6N , 3C9E , 3H7D , 3KW9 , 3KWB , 3KWZ , 3KX1 , 3O0U , 3O1G , 3OVZ , 4DMX , 4DMY , 4N79 , 4N8W , 4X6H , 4X6I , 4X6J , 4YV8 , 4YVA , 5J94 , 5JA7 , 5JH3 , 5TDI , 5TUN
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF08246 Inhibitor_I29 26 86 Cathepsin propeptide inhibitor domain (I29) Domain
PF00112 Peptidase_C1 115 328 Papain family cysteine protease Domain
Tissue specificity TISSUE SPECIFICITY: Predominantly expressed in osteoclasts (bones) (PubMed:7805878). Expressed in thyroid epithelial cells (PubMed:11082042). {ECO:0000269|PubMed:11082042, ECO:0000269|PubMed:7805878}.
Sequence
Sequence length 329
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Lysosome
Apoptosis
Osteoclast differentiation
Toll-like receptor signaling pathway
Rheumatoid arthritis
  Collagen degradation
Degradation of the extracellular matrix
Activation of Matrix Metalloproteinases
Trafficking and processing of endosomal TLR
MHC class II antigen presentation
RUNX1 regulates transcription of genes involved in differentiation of keratinocytes
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
163
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Abnormality of the skeletal system Likely pathogenic; Pathogenic rs762780994 RCV001814239
Pyknodysostosis Pathogenic; Likely pathogenic rs1654043546, rs2101951671, rs759107967, rs760640027, rs199919553, rs2101953129, rs1057517279, rs2101953595, rs2101951545, rs1237746431, rs2101954034, rs2525178790, rs2525180438, rs2525166561, rs1225660627
View all (73 more)
RCV005635146
RCV003469773
RCV003469777
RCV003469727
RCV001733850
RCV001805755
RCV001806411
RCV001806414
RCV004770271
RCV003471120
RCV002249851
RCV002306743
RCV002309588
RCV002309800
RCV002310009
RCV002307898
RCV002308046
RCV002308056
RCV002309173
RCV002309321
RCV002309333
RCV002306978
RCV002307227
RCV002310146
RCV002310357
RCV005239706
RCV003465997
RCV003465818
RCV000008931
RCV000008932
RCV000008933
RCV000008934
RCV000008935
RCV000008936
RCV000008937
RCV003468563
RCV003468564
RCV003468565
RCV003468566
RCV003468567
RCV003468568
RCV003468569
RCV003468570
RCV003468571
RCV003485990
RCV004575713
RCV004575714
RCV004575715
RCV000410122
RCV000409981
RCV000409237
RCV000409568
RCV000409218
RCV000411707
RCV000409792
RCV000411145
RCV000412028
RCV000409177
RCV000408975
RCV000411767
RCV000410588
RCV000410647
RCV000412289
RCV000409305
RCV000412093
RCV000673008
RCV000666587
RCV000669037
RCV000666069
RCV000665773
RCV000666321
RCV000666473
RCV000666918
RCV000669917
RCV000664905
RCV000761474
RCV000761424
RCV001830739
RCV003467528
RCV000986407
RCV003467829
RCV001834056
RCV001374471
RCV001290358
RCV001374468
RCV001374469
RCV001374470
RCV001374472
RCV001374474
RCV001261622
RCV001261623
RCV001374738
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Chronic lymphocytic leukemia/small lymphocytic lymphoma Conflicting classifications of pathogenicity rs201446793 RCV005891489
CTSK-related disorder Benign; Likely benign rs41271965 RCV003910059
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Acro Osteolysis Associate 24767306
Allergic Fungal Sinusitis Associate 33005006
Angiomyolipoma Associate 19060845, 25550868
Aortic Aneurysm Abdominal Associate 17322367, 22804761, 23958260, 24833013
Aortic Aneurysm Familial Abdominal 1 Inhibit 23958260
Arthritis Psoriatic Associate 18975331
Arthritis Rheumatoid Associate 10693863, 11920402, 35896699
Bone Cysts Aneurysmal Associate 22330339
Bone Diseases Associate 12568399, 18302508, 18678577, 25818344, 30199612, 36138018, 36696904, 8938428
Bone Diseases Metabolic Associate 24269275