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pubmed-article:19780555pubmed:dateCreated2009-10-14lld:pubmed
pubmed-article:19780555pubmed:abstractTextPrevious studies of the biosynthetic enzymes involved in the assembly of scytonemin (1), a cyanobacterial sunscreen, have identified beta-ketoacid 2 as an important intermediate that is produced by ThDP-dependent enzyme ScyA. We now report that ScyC, previously annotated as a hypothetical protein, catalyzes cyclization and decarboxylation of 2 to generate ketone 5. Assembly of the cyclopentyl[b]indole structure in this manner has little precedent in the chemical literature. Additional mechanistic experiments have revealed that cyclization likely precedes decarboxylation and that the latter event may provide a driving force for cyclopentane formation.lld:pubmed
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pubmed-article:19780555pubmed:dateRevised2011-11-17lld:pubmed
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pubmed-article:19780555pubmed:articleTitleAn enzymatic cyclopentyl[b]indole formation involved in scytonemin biosynthesis.lld:pubmed
pubmed-article:19780555pubmed:affiliationDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA.lld:pubmed
pubmed-article:19780555pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:19780555pubmed:publicationTypeResearch Support, N.I.H., Extramurallld:pubmed
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