1bi5
From Proteopedia
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[[Category: polyketide synthase]] | [[Category: polyketide synthase]] | ||
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Revision as of 12:50, 30 October 2007
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CHALCONE SYNTHASE FROM ALFALFA
Overview
Chalcone synthase (CHS) is pivotal for the biosynthesis of flavonoid, antimicrobial phytoalexins and anthocyanin pigments in plants. It produces, chalcone by condensing one p-coumaroyl- and three malonyl-coenzyme A, thioesters into a polyketide reaction intermediate that cyclizes. The, crystal structures of CHS alone and complexed with substrate and product, analogs reveal the active site architecture that defines the sequence and, chemistry of multiple decarboxylation and condensation reactions and, provides a molecular understanding of the cyclization reaction leading to, chalcone synthesis. The structure of CHS complexed with resveratrol also, suggests how stilbene synthase, a related enzyme, uses the same substrates, and an alternate cyclization pathway to form resveratrol. By using ... [(full description)]
About this Structure
1BI5 is a [Single protein] structure of sequence from [Medicago sativa]. Active as [Naringenin-chalcone synthase], with EC number [2.3.1.74]. Structure known Active Site: CYS. Full crystallographic information is available from [OCA].
Reference
Structure of chalcone synthase and the molecular basis of plant polyketide biosynthesis., Ferrer JL, Jez JM, Bowman ME, Dixon RA, Noel JP, Nat Struct Biol. 1999 Aug;6(8):775-84. PMID:10426957
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