Biology:Carboxylesterase 3

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Carboxylesterase 3 is an enzyme that in humans is encoded by the CES3 gene.[1][2][3][4]

Function

Carboxylesterase 3 is a member of a large multigene family. The enzymes encoded by these genes are responsible for the hydrolysis of ester- and amide-bond-containing drugs such as cocaine and heroin. They also hydrolyze long-chain fatty acid esters and thioesters. The specific function of this enzyme has not yet been determined; however, it is speculated that carboxylesterases may play a role in lipid metabolism and/or the blood–brain barrier system.[4]

References

  1. "cDNA cloning, characterization and stable expression of novel human brain carboxylesterase". FEBS Lett 458 (1): 17–22. Oct 1999. doi:10.1016/S0014-5793(99)01111-4. PMID 10518925. 
  2. "Carboxylesterases expressed in human colon tumor tissue and their role in CPT-11 hydrolysis". Clin Cancer Res 9 (13): 4983–91. Oct 2003. PMID 14581373. 
  3. "Hydrolysis of irinotecan and its oxidative metabolites, 7-ethyl-10-[4-N-(5-aminopentanoic acid)-1-piperidino] carbonyloxycamptothecin and 7-ethyl-10-[4-(1-piperidino)-1-amino]-carbonyloxycamptothecin, by human carboxylesterases CES1A1, CES2, and a newly expressed carboxylesterase isoenzyme, CES3". Drug Metab Dispos 32 (5): 505–11. Apr 2004. doi:10.1124/dmd.32.5.505. PMID 15100172. 
  4. 4.0 4.1 "Entrez Gene: CES3 carboxylesterase 3 (brain)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=23491. 

Further reading