Modelling the evolution of the archeal tryptophan synthase
Open Access
- 1 January 2007
- journal article
- research article
- Published by Springer Nature in BMC Ecology and Evolution
- Vol. 7 (1) , 59
- https://doi.org/10.1186/1471-2148-7-59
Abstract
Microorganisms and plants are able to produce tryptophan. Enzymes catalysing the last seven steps of tryptophan biosynthesis are encoded in the canonical trp operon. Among the trp genes are most frequently trpA and trpB, which code for the alpha and beta subunit of tryptophan synthase. In several prokaryotic genomes, two variants of trpB (named trpB1 or trpB2) occur in different combinations. The evolutionary history of these trpB genes is under debate.Keywords
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