Capsanthin/capsorubin synthase
Capsanthin/capsorubin synthase (, CCS, ketoxanthophyll synthase, capsanthin-capsorubin synthase) is an enzyme with systematic name violaxanthin—capsorubin isomerase (ketone-forming). This enzyme catalyses the following chemical reaction

 (1) violaxanthin  capsorubin
 (2) antheraxanthin  capsanthin

This multifunctional enzyme is induced during chromoplast differentiation in plants.

References

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EC 5.3.99