Deracemization and Stereoinversion to Aromatic <scp>d</scp>-Amino Acid Derivatives with Ancestral <scp>l</scp>-Amino Acid Oxidase
作者:Shogo Nakano、Yuki Minamino、Fumihito Hasebe、Sohei Ito
DOI:10.1021/acscatal.9b03418
日期:2019.11.1
pure amino acid derivatives could be foundational compounds for peptide drugs. Deracemization of racemates to l-amino acid derivatives can be achieved through the reaction of evolved d-aminoacidoxidase and chemical reductants, whereas deracemization to d-aminoacid derivatives has not progressed due to the difficulty associated with the heterologous expression of l-amino acidoxidase (LAAO). In this
USE OF INHIBITORS OF PORPHOBILINOGEN DEAMINASE IN THE TREATMENT OF CONGENITAL ERYTHROPOIETIC PORPHYRIA
申请人:Asociación Centro de Investigación Cooperativa
En Biociencias-CIC bioGune
公开号:EP2624829B1
公开(公告)日:2015-01-21
US9138423B2
申请人:——
公开号:US9138423B2
公开(公告)日:2015-09-22
[EN] USE OF INHIBITORS OF PORPHOBILINOGEN DEAMINASE IN THE TREATMENT OF CONGENITAL ERYTHROPOIETIC PORPHYRIA<br/>[FR] UTILISATION D'INHIBITEURS DE PORPHOBILINOGÈNE DÉSAMINASE DANS LE TRAITEMENT DE LA PORPHYRIE ÉRYTHROPOÏÉTIQUE CONGÉNITALE
申请人:CT DE INVESTIGACION COOPERATIVA EN BIOCIENCIAS CIC BIOGUNE
公开号:WO2012017088A1
公开(公告)日:2012-02-09
The invention relates to the use of a compound of general formula (I), wherein R1 and R2 are independently H or C1-C6 alkyl, or R1 and R2 are bound to one another forming an optionally substituted fused benzene ring, R3 is H, C1-C6 alkyl or -CH2- CH(NH2)-COOH and R4 is H, C1-C6 alkyl, or R4 represents (II) or (III) in the preparation of a medicinal product for treating and/or preventing congenital erythropoietic porphyria (CEP).
Complete Stereoinversion of <scp>l</scp>-Tryptophan by a Fungal Single-Module Nonribosomal Peptide Synthetase
作者:Yang Hai、Matthew Jenner、Yi Tang
DOI:10.1021/jacs.9b08898
日期:2019.10.16
Single-module nonribosomal peptide synthetases (NRPSs) and NRPS-like enzymes activate and transform carboxylic acids in both primary and secondary metabolism and are of great interest due to their biocatalytic potentials. The single-module NRPS IvoA is essential for fungal pigment biosynthesis. Here, we show that IvoA catalyzes ATP-dependent unidirectional stereo inversion of L-tryptophan to D-tryptophan with complete conversion. While the stereoinversion is catalyzed by the epimerization (E) domain, the terminal condensation (C) domain stereoselectively hydrolyzes D-tryptophanyl-S-phosphopantetheine thioester and thus represents a noncanonical C domain function. Using IvoA, we demonstrate a biocatalytic stereoinversion/deracemization route to access a variety of substituted D-tryptophan analogs in high enantiomeric excess.