Eukaryotic TYW1 Is a Radical SAM Flavoenzyme.
Eukaryotic TYW1 Is a Radical SAM Flavoenzyme.
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DOI:
10.1021/acs.biochem.1c00349
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发表时间:
2021-07-13
期刊:
影响因子:
2.9
通讯作者:
Bandarian V
中科院分区:
文献类型:
--
作者:
Young AP;Bandarian V
TYW1 is a radical S-adenosyl-l-methionine (SAM) enzyme that catalyzes the condensation of pyruvate and N-methylguanosine containing tRNAPhe, forming 4-demethylwyosine containing tRNAPhe. Homologs of TYW1 are found in both archaea and eukarya, with archaeal homologs consisting of a single domain while eukaryal homologs contain a flavin binding domain in addition to the radical SAM domain shared with archaeal homologs. In this study, TYW1 from S. cerevisiae (ScTYW1) was heterologously expressed in E. coli and purified to homogeneity. ScTYW1 purifies with 0.54 ± 0.07 and 4.2 ± 1.9 equivalents of flavin mononucleotide (FMN) and iron, respectively, per mol of protein, suggesting the protein is ~50% replete with Fe-S clusters and FMN. While both NADPH or NADH are sufficient for activity, significantly more product is observed when used in combination with flavin nucleotides. ScTYW1 is the first example of a radical SAM flavoenzyme, active with NAD(P)H alone.
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影响因子:
15
作者:
Bruender NA;Grell TA;Dowling DP;McCarty RM;Drennan CL;Bandarian V
通讯作者:
Bandarian V
DOI:
10.1126/science.1205358
发表时间:
2011-05-27
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Boal AK;Grove TL;McLaughlin MI;Yennawar NH;Booker SJ;Rosenzweig AC
通讯作者:
Rosenzweig AC
影响因子:
14.8
作者:
Dowling, Daniel P.;Bruender, Nathan A.;Young, Anthony P.;McCarty, Reid M.;Bandarian, Vahe;Drennan, Catherine L.
通讯作者:
Drennan, Catherine L.
影响因子:
15
作者:
Dong M;Su X;Dzikovski B;Dando EE;Zhu X;Du J;Freed JH;Lin H
通讯作者:
Lin H
影响因子:
15
作者:
Chen, DW;Walsby, C;Frey, PA
通讯作者:
Frey, PA