Analysis of carotenoid isomerase activity in a prototypical carotenoid cleavage enzyme, apocarotenoid oxygenase (ACO)

Xuewu Sui, Philip D. Kiser, Tao Che, Paul R. Carey, Marcin Golczak, Wuxian Shi, Johannes Von Lintig, Krzysztof Palczewski

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Background: Isomerase activity for Synechocystis apocarotenoid oxygenase (ACO) has not been verified biochemically. Results: ACO exclusively produces all-trans-retinal from all-trans-apo-8β-cells-carotenol and is inhibited by linear polyoxyethylene detergents. Conclusion: ACO cleaves but does not isomerize all-trans-8β-cells-apocarotenol. Significance: This study clarifies the activity of and influence of detergent on ACO, a classical non-isomerizing member of the carotenoid cleavage enzyme family.

Original languageEnglish
Pages (from-to)12286-12299
Number of pages14
JournalJournal of Biological Chemistry
Volume289
Issue number18
DOIs
StatePublished - 2014

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