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Tryptophan decarboxylase plays an important role in ajmalicine biosynthesis in Rauvolfia verticillata

Liu, Wanhong; Chen, Rong; Chen, Min; Zhang, Haoxing; Peng, Meifang; Yang, Chunxian; Ming, Xinfjia; Lan, Xiaozhong; Liao, Zhihua


Tryptophan decarboxylase (TDC) converts tryptophan into tryptamine that is the indole moiety of ajmalicine. The full-length cDNA of Rauvolfiaverticillata (RvTDC) was 1,772 bps that contained a 1,500-bp ORF encoding a 499-amino-acid polypeptide. Recombinant 55.5 kDa RvTDC converted tryptophan into tryptamine. The Km of RvTDC for tryptophan was 2.89 mM, higher than those reported in other TIAs-producing plants. It demonstrated that RvTDC had lower affinity to tryptophan than other plant TDCs. The...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Planta
DOI: 10.1007/s00425-012-1608-z


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