Chemoenzymatic synthesis of thiazolyl peptide natural products featuring an enzyme-catalyzed formal [4 + 2] cycloaddition.
Chemoenzymatic synthesis of thiazolyl peptide natural products featuring an enzyme-catalyzed formal [4 + 2] cycloaddition.
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DOI:
10.1021/jacs.5b00940
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发表时间:
2015-03-18
影响因子:
15
通讯作者:
Bowers AA
中科院分区:
文献类型:
--
作者:
Wever WJ;Bogart JW;Baccile JA;Chan AN;Schroeder FC;Bowers AA
Thiocillins from Bacillus cereus ATCC 14579 are members of the well-known thiazolyl peptide class of natural product antibiotics, the biosynthesis of which has recently been shown to proceed via posttranslational modification of ribosomally encoded precursor peptides. It has long been hypothesized that the final step of thiazolyl peptide biosynthesis involves a formal [4 + 2] cycloaddition between two dehydroalanines, a unique transformation that had eluded enzymatic characterization. Here we demonstrate that TclM, a single enzyme from the thiocillin biosynthetic pathway, catalyzes this transformation. To facilitate characterization of this new class of enzyme, we have developed a combined chemical and biological route to the complex peptide substrate, relying on chemical synthesis of a modified C-terminal fragment and coupling to a 38-residue leader peptide by means of native chemical ligation (NCL). This strategy, combined with active enzyme, provides a new chemoenzymatic route to this promising class of antibiotics.
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影响因子:
15
作者:
Economou, Nicoleta J.;Nahoum, Virginie;Loll, Patrick J.
通讯作者:
Loll, Patrick J.
影响因子:
7.3
作者:
LaMarche, Matthew J.;Leeds, Jennifer A.;Yu, Donghui
通讯作者:
Yu, Donghui
影响因子:
15
作者:
Bowers, Albert A.;Walsh, Christopher T.;Acker, Michael G.
通讯作者:
Acker, Michael G.
影响因子:
15
作者:
Nicolaou, KC;Zak, M;Nevalainen, M
通讯作者:
Nevalainen, M
DOI:
10.1039/c39780000256
发表时间:
1978-01-01
影响因子:
--
作者:
BYCROFT, BW;GOWLAND, MS
通讯作者:
GOWLAND, MS