Method for the synthesis of tryptophan analogs in aqueous solvents at reduced temperatures
申请人:California Institute of Technology
公开号:US10752927B2
公开(公告)日:2020-08-25
The present disclosure provides methods for preparing tryptophans and tryptophan derivatives. The methods include: combining i) an indole substrate or azulene substrate, ii) a serine substrate, and iii) an engineered tryptophan synthase β-subunit (TrpB); and maintaining the resulting mixture under conditions sufficient to form the product compound. The engineered TrpB comprises a PLP binding loop mutation, a helix 1 mutation, a strand 7-8 mutation, or a combination thereof. New TrpB variants are also described.
IMPROVED METHOD FOR THE SYNTHESIS OF TRYPTOPHAN ANALOGS IN AQUEOUS SOLVENTS AT REDUCED TEMPERATURES
申请人:California Institute of Technology
公开号:EP3759227A1
公开(公告)日:2021-01-06
METHOD FOR THE SYNTHESIS OF TRYPTOPHAN ANALOGS IN AQUEOUS SOLVENTS AT REDUCED TEMPERATURES
申请人:California Institute of Technology
公开号:US20190271016A1
公开(公告)日:2019-09-05
The present disclosure provides methods for preparing tryptophans and tryptophan derivatives. The methods include: combining i) an indole substrate or azulene substrate, ii) a serine substrate, and iii) an engineered tryptophan synthase β-subunit (TrpB); and maintaining the resulting mixture under conditions sufficient to form the product compound. The engineered TrpB comprises a PLP binding loop mutation, a helix 1 mutation, a strand 7-8 mutation, or a combination thereof. New TrpB variants are also described.
Unlocking Reactivity of TrpB: A General Biocatalytic Platform for Synthesis of Tryptophan Analogues
作者:David K. Romney、Javier Murciano-Calles、Jöri E. Wehrmüller、Frances H. Arnold
DOI:10.1021/jacs.7b05007
日期:2017.8.9
it can form Trp analogues directly from serine (Ser) and the corresponding indole analogue. However, many potentially useful substrates, including bulky or electron-deficient indoles, are poorly accepted. We have applied directed evolution to TrpB from Pyrococcus furiosus and Thermotoga maritima to generate a suite of catalysts for the synthesis of previously intractable Trp analogues. For the most challenging