Zeta-carotene isomerase

Zeta-carotene isomerase (EC 5.2.1.12, Z-ISO, 15-cis-zeta-carotene isomerase) is an enzyme with systematic name 9,15,9'-tricis-zeta-carotene cis-trans-isomerase.^[1]^[2] This enzyme catalyses the following chemical reaction

9,15,9'-tricis-zeta-carotene

\rightleftharpoons

9,9'-dicis-zeta-carotene

This enzyme is involved in carotenoid biosynthesis.

References

↑ Chen, Y., Li, F. and Wurtzel, E.T. (2010). "Isolation and characterization of the Z-ISO gene encoding a missing component of carotenoid biosynthesis in plants". Plant Physiol. 153: 66–79. doi:10.1104/pp.110.153916. PMID 20335404.
↑ Li, F., Murillo, C. and Wurtzel, E.T. (2007). "Maize Y9 encodes a product essential for 15-cis-ζ-carotene isomerization". Plant Physiol. 144: 1181–1189. doi:10.1104/pp.107.098996. PMID 17434985.

External links

Zeta-carotene isomerase at the US National Library of Medicine Medical Subject Headings (MeSH)

Isomerases: geometric (EC 5.2)

5.2.1	FKBP: FKBP1A FKBP1B FKBP2 FKBP3 FKBP5 FKBP6 FKBP8 FKBP9 FKBP10 FKBP52 FKBPL other: Cyclophilin Parvulin Prolyl isomerase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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