UniProt Summary: Non-apoptotic caspase involved in epidermal differentiation. Is the predominant caspase in epidermal stratum corneum (PubMed:15556625). Seems to play a role in keratinocyte differentiation and is required for cornification. Regulates maturation of the epidermis by proteolytically processing filaggrin (By similarity). In vitro has a preference for the substrate [WY]-X-X-D motif and is active on the synthetic caspase substrate WEHD-ACF (PubMed:16854378, PubMed:19960512). Involved in processing of prosaposin in the epidermis (By similarity). May be involved in retinal pigment epithelium cell barrier function (PubMed:25121097). Involved in DNA degradation in differentiated keratinocytes probably by cleaving DFFA/ICAD leading to liberation of DFFB/CAD (PubMed:24743736). {ECO:0000250|UniProtKB:O89094, ECO:0000269|PubMed:15301553, ECO:0000269|PubMed:15556625, ECO:0000269|PubMed:16854378, ECO:0000269|PubMed:19960512, ECO:0000269|PubMed:22825846, ECO:0000269|PubMed:24743736, ECO:0000305|PubMed:25121097}.
Pfam DomainsGO Terms
Pfam Domains
Peptidase C14
GO Terms
cysteine-type endopeptidase activity involved in apoptotic process
intrinsic apoptotic signaling pathway in response to DNA damage
cysteine-type endopeptidase activity
keratin filament
cornification
intrinsic apoptotic signaling pathway
keratinization
keratinocyte differentiation
apoptotic signaling pathway
epidermal cell differentiation
skin development
epidermis development
epithelial cell differentiation
cellular response to DNA damage stimulus
apoptotic process
programmed cell death
cell death
epithelium development
mitochondrion
proteolysis
intracellular signal transduction
cellular response to stress
tissue development
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)