Caspase 1

Caspase 1, apoptosis-related cysteine peptidase (interleukin 1, beta, convertase)

PDB rendering based on 1bmq.
Identifiers
Symbols CASP1; ICE; IL1BC; P45
External IDs OMIM147678 MGI96544 HomoloGene7653 GeneCards: CASP1 Gene
EC number 3.4.22.36
Orthologs
Species Human Mouse
Entrez 834 12362
Ensembl ENSG00000137752 ENSMUSG00000025888
UniProt P29466 P29452
RefSeq (mRNA) NM_001223.3 NM_009807.2
RefSeq (protein) NP_001214.1 NP_033937.2
Location (UCSC) Chr 11:
104.9 – 104.97 Mb
Chr 9:
5.3 – 5.31 Mb
PubMed search [1] [2]

Caspase 1 is an enzyme that proteolytically cleaves other proteins, such as the precursor forms of the inflammatory cytokines interleukin 1-β and interleukin 18, into active mature peptides.[1][2] It belongs to a family of cysteine proteases known as caspases that always cleave proteins following an aspartic acid residue.[3] Caspase 1 is produced as a zymogen that is cleaved into 20 kDa (p20) and 10 kDa (p10) subunits that become part of the active enzyme. Active caspase 1 contains two heterodimers of p20 and p10. It interacts with another CARD domain containing protein called PYCARD (or ASC) and is involved in inflammasome formation and activation of inflammatory processes.[4]

Caspase 1 has been shown to induce cell necrosis or pyroptosis and may function in various developmental stages. Studies of a similar protein in mouse suggest a role in the pathogenesis of Huntington's disease. Alternative splicing of the gene results in five transcript variants encoding distinct isoforms.[5]

Contents

Interactions

Caspase 1 has been shown to interact with NLRC4.[6][7]

See also

References

  1. ^ Thornberry N, Bull H, Calaycay J, et al. (1992). "A novel heterodimeric cysteine protease is required for interleukin-1 beta processing in monocytes". Nature 356 (6372): 768–74. doi:10.1038/356768a0. PMID 1574116. 
  2. ^ Cerretti DP, Kozlosky CJ, Mosley B, et al. (1992). "Molecular cloning of the interleukin-1 beta converting enzyme". Science 256 (5053): 97–100. doi:10.1126/science.1373520. PMID 1373520. 
  3. ^ Black RA, Kronheim SR, Merriam JE, March CJ, Hopp TP (1989). "A pre-aspartate-specific protease from human leukocytes that cleaves pro-interleukin-1 beta". J Biol Chem 264 (10): 5323–5326. PMID 2784432. 
  4. ^ Mariathasan S, Newton K, Monack D, Vucic D, French D, Lee W, Roose-Girma M, Erickson S, Dixit V (2004). "Differential activation of the inflammasome by caspase-1 adaptors ASC and Ipaf". Nature 430 (6996): 213–8. doi:10.1038/nature02664. PMID 15190255. 
  5. ^ "Entrez Gene: CASP1 caspase 1, apoptosis-related cysteine peptidase (interleukin 1, beta, convertase)". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=834. 
  6. ^ Damiano, Jason S; Oliveira Vasco, Welsh Kate, Reed John C (Jul. 2004). "Heterotypic interactions among NACHT domains: implications for regulation of innate immune responses". Biochem. J. (England) 381 (Pt 1): 213–9. doi:10.1042/BJ20031506. PMC 1133779. PMID 15107016. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1133779. 
  7. ^ Damiano, J S; Stehlik C, Pio F, Godzik A, Reed J C (Jul. 2001). "CLAN, a novel human CED-4-like gene". Genomics (United States) 75 (1–3): 77–83. doi:10.1006/geno.2001.6579. ISSN 0888-7543. PMID 11472070. 

External links