Phorbol-diester hydrolase

Phorbol-diester hydrolase
Identifiers
EC no.3.1.1.51
CAS no.81181-74-0
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

Phorbol-diester hydrolase (EC 3.1.1.51) is an enzyme that catalyzes the reaction

 
H2O
 
Rightward reaction arrow with minor substrate(s) from top left
 
 
 
2D representation of the chemical structure of Q27102560.
phorbol 13-butanoate
+
 

The enzyme characterised from murine liver hydrolyses the diterpenoid, phorbol 12,13-dibutyrate, to remove one specific butyrate ester, giving phorbol 13-butanoate and butyric acid. It also acts on 12-O-tetradecanoylphorbol-13-acetate.[1] Such phorbol diesters from croton oil are tumor promoters, so this reaction inactivates them.[2][3]

This enzyme is a hydrolase, specifically one acting on carboxylic ester bonds. The systematic name is 12,13-diacylphorbate 12-acylhydrolase. Other names in common use include diacylphorbate 12-hydrolase, diacylphorbate 12-hydrolase, phorbol-12,13-diester 12-ester hydrolase, and PDEH.[4]

References

  1. ↑ Shoyab M, Warren TC, Todaro GJ (1981). "Isolation and characterization of an ester hydrolase active on phorbol diesters from murine liver". J. Biol. Chem. 256 (23): 12529–34. doi:10.1016/S0021-9258(18)43307-8. PMID 6946062.
  2. ↑ Blumberg PM, Delclos KB, Dunn JA, Jaken S, Leach KL, Yeh E (1983). "Phorbol ester receptors and the in vitro effects of tumor promoters". Annals of the New York Academy of Sciences. 407 (1): 303–315. Bibcode:1983NYASA.407..303B. doi:10.1111/j.1749-6632.1983.tb47836.x. PMID 6309054. S2CID 20089027.
  3. ↑ De Barros, Cândida R. M.; Ferreira, Luis M. M.; Nunes, Fernando M.; et al. (2011). "The potential of white-rot fungi to degrade phorbol esters of Jatropha curcas L. Seed cake". Engineering in Life Sciences. 11: 107–110. doi:10.1002/elsc.201000040.
  4. ↑ Enzyme 3.1.1.51 at KEGG Pathway Database.