Protein: CATK
Cathepsin K (EC 3.4.22.38) (Cathepsin O) (Cathepsin O2) (Cathepsin X)

Gene: CATK, CTSK
Organism: Homo sapiens
Interactions: 19
UniProt ID: P43235

Gene Ontology (top 5):
GO:0000423 - mitophagy
GO:0001968 - fibronectin binding
GO:0004197 - cysteine-type endopeptidase activity
GO:0004252 - serine-type endopeptidase activity
GO:0005518 - collagen binding

Download interactions: TXT   MITAB-2.5

Interaction Interactor Experiments Homologs Category Interaction
Score
Confidence

261608

CATL2
Cathepsin L2

3

6

High-throughput

0.861

High

459240

CATL1
Procathepsin L

2

6

High-throughput

0.811

High

846134

TINAL
Tubulointerstitial nephritis antigen-like

1

8

High-throughput

0.691

High

62916

POTEF
POTE ankyrin domain family member F

1

0

High-throughput

0.656

High

846128

ARI4B
AT-rich interactive domain-containing protein 4B

3

0

High-throughput

0.638

High

650079

FGFR3
Fibroblast growth factor receptor 3

1

0

High-throughput

0.518

High

713339

SPB3
Serpin B3

1

2

Small-scale

0.501

High

465947

CO1A2
Collagen alpha-2(I) chain

1

0

Small-scale

0.480

High

340843

NFAC1
Nuclear factor of activated T-cells, cytoplasmic 1

1

3

Small-scale

0.479

High

609911

SPI1
Transcription factor PU.1

1

2

Small-scale

0.479

High

846125

NEDD4
E3 ubiquitin-protein ligase NEDD4

1

1

Small-scale

0.479

High

846127

DNLI4
DNA ligase 4

1

0

High-throughput

0.460

High

846130

CGAS
Cyclic GMP-AMP synthase

1

0

High-throughput

0.458

High

846126

CAMP
Cathelicidin antimicrobial peptide

1

1

Small-scale

0.445

High

846133

RARR2
Retinoic acid receptor responder protein 2

1

1

Small-scale

0.445

High

482679

SPRC
SPARC

1

0

Small-scale

0.426

High

846131

ARK2N
Protein ARK2N

3

0

High-throughput

0.347

High

846132

ERBIN
Erbin

3

0

High-throughput

0.347

High

846129

SIAH1
E3 ubiquitin-protein ligase SIAH1

2

0

Small-scale

0.323

High


Service provided by Combinatics, Japan

Last updated: 11Aug2025