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Functional characterization of ttmM unveils new tautomycin analogs and insight into tautomycin biosynthesis and activity.


ABSTRACT: The biosynthetic gene cluster for tautomycin (TTM), a potent protein phosphatase (PP) inhibitor has recently been characterized. Inactivation of ttmM, which encodes a putative C3' hydroxylase, afforded mutant SB6005 which accumulated three new 3'-deshydroxy TTM analogs, supporting the function of TtmM and the previously proposed linear pathway for TTM biosynthesis. Bioassays reveal the importance of the C3' OH moiety in PP inhibition and that PP inhibition is not the exclusive mechanism driving TTM-induced cell death.

SUBMITTER: Ju J 

PROVIDER: S-EPMC2707755 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature

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Functional characterization of ttmM unveils new tautomycin analogs and insight into tautomycin biosynthesis and activity.

Ju Jianhua J   Li Wenli W   Yuan Qiuping Q   Peters Noel R NR   Hoffmann F Michael FM   Rajski Scott R SR   Osada Hiroyuki H   Shen Ben B  

Organic letters 20090401 7


The biosynthetic gene cluster for tautomycin (TTM), a potent protein phosphatase (PP) inhibitor has recently been characterized. Inactivation of ttmM, which encodes a putative C3' hydroxylase, afforded mutant SB6005 which accumulated three new 3'-deshydroxy TTM analogs, supporting the function of TtmM and the previously proposed linear pathway for TTM biosynthesis. Bioassays reveal the importance of the C3' OH moiety in PP inhibition and that PP inhibition is not the exclusive mechanism driving  ...[more]

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