VC1 catalyses a key step in the biosynthesis of vicine in faba bean.
VC1 catalyses a key step in the biosynthesis of vicine in faba bean.
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DOI:
10.1038/s41477-021-00950-w
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发表时间:
2021-07
期刊:
影响因子:
18
通讯作者:
Geu-Flores F
中科院分区:
文献类型:
--
作者:
Björnsdotter E;Nadzieja M;Chang W;Escobar-Herrera L;Mancinotti D;Angra D;Xia X;Tacke R;Khazaei H;Crocoll C;Vandenberg A;Link W;Stoddard FL;O'Sullivan DM;Stougaard J;Schulman AH;Andersen SU;Geu-Flores F
Faba bean (Vicia faba L.) is a widely adapted and high-yielding legume cultivated for its protein-rich seeds. However, the seeds accumulate the pyrimidine glucosides vicine and convicine, which can cause hemolytic anemia (favism) in 400 million genetically predisposed individuals. Here, we use gene-to-metabolite correlations, gene mapping, and genetic complementation to identify VC1 as a key enzyme in vicine and convicine biosynthesis. We demonstrate that VC1 has GTP cyclohydrolase II activity and that the purine GTP is a precursor of both vicine and convicine. Finally, we show that cultivars with low vicine and convicine levels carry an inactivating insertion in the coding sequence of VC1. Our results reveal an unexpected, purine rather than pyrimidine, biosynthetic origin for vicine and convicine and pave the way for the development of faba bean cultivars that are free of these anti-nutrients.
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影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
影响因子:
5.6
作者:
Hiltunen HM;Illarionov B;Hedtke B;Fischer M;Grimm B
通讯作者:
Grimm B
影响因子:
3.7
作者:
Chang W;Jääskeläinen M;Li SP;Schulman AH
通讯作者:
Schulman AH
DOI:
10.1093/bioinformatics/bts565
发表时间:
2012-12-01
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Fu L;Niu B;Zhu Z;Wu S;Li W
通讯作者:
Li W
影响因子:
5.4
作者:
Lehmann, Martin;Degen, Simone;Schramek, Nicholas
通讯作者:
Schramek, Nicholas