Radical Breakthroughs in Natural Product and Cofactor Biosynthesis.
Radical Breakthroughs in Natural Product and Cofactor Biosynthesis.
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DOI:
10.1021/acs.biochem.7b00878
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发表时间:
2018-01-30
期刊:
影响因子:
2.9
通讯作者:
Yokoyama K
中科院分区:
文献类型:
--
作者:
Yokoyama K
The radical SAM (S-adenosyl-L-methionine) superfamily is one of the largest group of enzymes with >113,000 annotated sequences. Members of this superfamily catalyze the reductive cleavage of SAM using an oxygen sensitive 4Fe-4S cluster to transiently generate 5′-deoxyadenosyl radical (5′-dA•) that is subsequently used to initiate diverse free radical-mediated reactions. Because of the unique reactivity of free radicals, radical SAM enzymes frequently catalyze chemically challenging reactions critical for the biosynthesis of unique structures of cofactors and natural products. In this perspective, I will discuss the impact of characterizing novel functions in radical SAM enzymes on our understanding of biosynthetic pathways and use two recent examples from my own group with particular emphasis on two radical SAM enzymes responsible for carbon skeleton formation during the biosynthesis of a cofactor and natural products.
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