Purinyl-cobamide is a native prosthetic group of reductive dehalogenases.
Purinyl-cobamide is a native prosthetic group of reductive dehalogenases.
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DOI:
10.1038/nchembio.2512
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发表时间:
2018-01
影响因子:
14.8
通讯作者:
Löffler FE
中科院分区:
文献类型:
--
作者:
Yan J;Bi M;Bourdon AK;Farmer AT;Wang PH;Molenda O;Quaile AT;Jiang N;Yang Y;Yin Y;Şimşir B;Campagna SR;Edwards EA;Löffler FE
Cobamides such as vitamin B12 are structurally conserved, cobalt-containing tetrapyrrole biomolecules with essential biochemical functions in all domains of life. In organohalide respiration, a vital biological process for the global cycling of natural and anthropogenic organohalogens, cobamides are the requisite prosthetic groups for carbon–halogen bond-cleaving reductive dehalogenases. This study reports the biosynthesis of a new cobamide with unsubstituted purine as the lower base, and assigns unsubstituted purine a biological function by demonstrating that Coα-purinyl-cobamide (purinyl-Cba) is the native prosthetic group in catalytically active tetrachloroethene reductive dehalogenases of Desulfitobacterium hafniense. Cobamides featuring different lower bases are not functionally equivalent, and purinyl-Cba elicits different physiological responses in corrinoid-auxotrophic, organohalide-respiring bacteria. Given that cobamide-dependent enzymes catalyze key steps in essential metabolic pathways, the discovery of a novel cobamide structure and the realization that lower bases can effectively modulate enzyme activities generate opportunities to manipulate functionalities of microbiomes.
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影响因子:
8
作者:
Di Virgilio F;Adinolfi E
通讯作者:
Adinolfi E
影响因子:
5.1
作者:
Keller, Sebastian;Ruetz, Markus;Schubert, Torsten
通讯作者:
Schubert, Torsten
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
DOI:
10.1093/bioinformatics/bts199
发表时间:
2012-06-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Kearse M;Moir R;Wilson A;Stones-Havas S;Cheung M;Sturrock S;Buxton S;Cooper A;Markowitz S;Duran C;Thierer T;Ashton B;Meintjes P;Drummond A
通讯作者:
Drummond A
影响因子:
--
作者:
Crofts, Terence S.;Seth, Erica C.;Taga, Michiko E.
通讯作者:
Taga, Michiko E.