Zeaxanthin glucosyltransferase explained

Zeaxanthin glucosyltransferase
Ec Number:	2.4.1.276

Zeaxanthin glucosyltransferase (crtX (gene)) is an enzyme with systematic name UDP-glucose:zeaxanthin beta-D-glucosyltransferase.^[1] This enzyme catalyses the following chemical reaction

\rightleftharpoons 2 UDP + zeaxanthin bis(beta-D-glucoside)

The reaction proceeds in two steps with the monoglucoside as an intermediate.

Notes and References

1. Hundle BS, O'Brien DA, Alberti M, Beyer P, Hearst JE . Functional expression of zeaxanthin glucosyltransferase from Erwinia herbicola and a proposed uridine diphosphate binding site . Proceedings of the National Academy of Sciences of the United States of America . 89 . 19 . 9321–5 . October 1992 . 1409639 . 50118 . 10.1073/pnas.89.19.9321 . free .