Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 24, Pages 8492-8495Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja500622v
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Funding
- NIH [R01-AI063596]
- NIGMS [F31 GM101953, F32 GM084475]
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Glycosyltransferases that act on polyprenol pyrophosphate substrates are challenging to study because their lipid-linked substrates are difficult to isolate from natural sources and arduous to synthesize. To facilitate access to glycosyl acceptors, we assembled phosphonophosphate analogues and showed these are effective substrate surrogates for GlfT1, the essential product of mycobacterial gene Rv3782. Under chemically defined conditions, the galactofuranosyltransferase GlfT1 catalyzes the formation of a tetrasaccharide sequence en route to assembly of the mycobacterial galactan.
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