6'-Deoxychalcone synthase

In enzymology, a 6'-deoxychalcone synthase (EC 2.3.1.170) is an enzyme that catalyzes the chemical reaction

3 malonyl-CoA + 4-coumaroyl-CoA + NADPH + H⁺ ${\displaystyle \rightleftharpoons }$ 4 CoA + isoliquiritigenin + 3 CO₂ + NADP⁺ + H₂O

6'-Deoxychalcone synthase
Identifiers
EC no.	2.3.1.170
CAS no.	114308-23-5
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

The 4 substrates of this enzyme are malonyl-CoA, 4-coumaroyl-CoA, NADPH, and H⁺, whereas its 5 products are CoA, isoliquiritigenin, CO₂, NADP⁺, and H₂O. Deoxychalcone synthase catalyzed activity is involved in the biosynthesis of retrochalcone and certain phytoalexins in the cells of Glycyrrhiza echinata (Russian licorice) and other leguminous plants.

This 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).