6'-Deoxychalcone synthase

6'-Deoxychalcone synthase
Identifiers
EC no.2.3.1.170
CAS no.114308-23-5
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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PMCarticles
PubMedarticles
NCBIproteins

6'-deoxychalcone synthase (EC 2.3.1.170) is an enzyme that catalyzes the synthesis of the polyketide, isoliquiritigenin, from one unit of coumaroyl-CoA and three of malonyl-CoA. The enzyme requires reduced nicotinamide adenine dinucleotide phosphate (NADPH) to activate its substrate. It is present in Glycyrrhiza echinata (Russian licorice) and other leguminous plants, where it is part of the pathway to phytoalexins such as the flavanone, liquiritigenin.[1][2]

+ NADPH + 3
 
 
H+
3 CO2
 
 
 


The enzyme belongs to the family of transferases, to be specific those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is malonyl-CoA:4-coumaroyl-CoA malonyltransferase (cyclizing, reducing).[3]

References

  1. ^ Ayabe S, Udagawa A, Furuya T (1988). "NAD(P)H-dependent 6'-deoxychalcone synthase activity in Glycyrrhiza echinata cells induced by yeast extract". Arch. Biochem. Biophys. 261 (2): 458–62. doi:10.1016/0003-9861(88)90362-1. PMID 3355160.
  2. ^ Peng, Fu; Du, Qiaohui; Peng, Cheng; Wang, Neng; Tang, Hailin; Xie, Xiaoming; Shen, Jiangang; Chen, Jianping (2015). "A Review: The Pharmacology of Isoliquiritigenin". Phytotherapy Research. 29 (7): 969–977. doi:10.1002/ptr.5348. PMID 25907962.
  3. ^ Enzyme 2.3.1.170 at KEGG Pathway Database.