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Protein Page:
CASP1 (human)

Overview
CASP1 Thiol protease that cleaves IL-1 beta between an Asp and an Ala, releasing the mature cytokine which is involved in a variety of inflammatory processes. Important for defense against pathogens. Cleaves and activates sterol regulatory element binding proteins (SREBPs). Can also promote apoptosis. Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 20 kDa (p20) and a 10 kDa (p10) subunit. The p20 subunit can also form a heterodimer with the epsilon isoform which then has an inhibitory effect. May be a component of the inflammasome, a protein complex which also includes PYCARD, CARD8 and NALP2 and whose function would be the activation of proinflammatory caspases. Interacts with CARD17/INCA and CARD18. Expressed in larger amounts in spleen and lung. Detected in liver, heart, small intestine, colon, thymus, prostate, skeletal muscle, peripheral blood leukocytes, kidney and testis. No expression in the brain. Specifically inhibited by the cowpox virus Crma protein. Belongs to the peptidase C14A family. 5 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Apoptosis; EC 3.4.22.36; Protease
Chromosomal Location of Human Ortholog: 11q23
Cellular Component: cytosol
Molecular Function: caspase activator activity; cysteine-type endopeptidase activity; endopeptidase activity; protein binding
Biological Process: positive regulation of I-kappaB kinase/NF-kappaB cascade; proteolysis; regulation of apoptosis; regulation of inflammatory response; signal transduction
Reference #:  P29466 (UniProtKB)
Alt. Names/Synonyms: CASP-1; CASP1; CASP1 nirs variant 1; caspase 1, apoptosis-related cysteine peptidase (interleukin 1, beta, convertase); caspase 1, apoptosis-related cysteine protease (interleukin 1, beta, convertase); Caspase-1; Caspase-1 subunit p10; Caspase-1 subunit p20; ICE; IL-1 beta-converting enzyme; IL-1BC; IL1B-convertase; IL1BC; IL1BCE; interleukin 1-B converting enzyme; interleukin 1-beta convertase; Interleukin-1 beta convertase; Interleukin-1 beta-converting enzyme; p45
Gene Symbols: CASP1
Molecular weight: 45,159 Da
Basal Isoelectric point: 5.63  Predict pI for various phosphorylation states
CST Pathways:  ErbB/HER Signaling
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
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CASP1

Protein Structure Not Found.
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