Capsanthin/capsorubin synthase

Capsanthin/capsorubin synthase (EC 5.3.99.8, CCS, ketoxanthophyll synthase, capsanthin-capsorubin synthase) is an enzyme with systematic name violaxanthin—capsorubin isomerase (ketone-forming).^[1][2][3] This enzyme catalyses the following chemical reaction

(1) violaxanthin ${\displaystyle \rightleftharpoons }$ capsorubin

(2) antheraxanthin ${\displaystyle \rightleftharpoons }$ capsanthin

Capsanthin/capsorubin synthase
Identifiers
EC no.	5.3.99.8
CAS no.	162032-85-1
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

This multifunctional enzyme is induced during chromoplast differentiation in plants.