据报道,用于合成S-腺苷-L-甲硫氨酸 (SAM) 类似物的化学酶平台与下游 SAM 利用酶兼容。合成了 44 种非天然 S/Se 烷基化 Met 类似物,并将其用于探测五种不同的蛋氨酸腺苷转移酶 (MAT) 的底物特异性。人类 MAT II 是所分析的 MAT 中最受允许的之一,并且能够化学酶合成 29 种非天然 SAM 类似物。作为天然产物“烷基随机化”可行性的概念证明,通过使用耦合的 hMAT2-RebM 系统(RebM 是参与瑞贝卡霉素的糖 C4'- O-甲基转移酶)生成了一小组差异烷基化吲哚并咔唑类似物。生物合成)。在单个容器中耦合 SAM 合成和利用的能力避免了与 SAM 类似物快速分解相关的问题,从而为进一步研究各种 SAM 利用酶打开了大门。
据报道,用于合成S-腺苷-L-甲硫氨酸 (SAM) 类似物的化学酶平台与下游 SAM 利用酶兼容。合成了 44 种非天然 S/Se 烷基化 Met 类似物,并将其用于探测五种不同的蛋氨酸腺苷转移酶 (MAT) 的底物特异性。人类 MAT II 是所分析的 MAT 中最受允许的之一,并且能够化学酶合成 29 种非天然 SAM 类似物。作为天然产物“烷基随机化”可行性的概念证明,通过使用耦合的 hMAT2-RebM 系统(RebM 是参与瑞贝卡霉素的糖 C4'- O-甲基转移酶)生成了一小组差异烷基化吲哚并咔唑类似物。生物合成)。在单个容器中耦合 SAM 合成和利用的能力避免了与 SAM 类似物快速分解相关的问题,从而为进一步研究各种 SAM 利用酶打开了大门。
[EN] AMINOACYL TRNA SYNTHETASES AND ORTHOGONAL TRNAS<br/>[FR] AMINOACYL-ARNT SYNTHÉTASES ET ARNT ORTHOGONAUX
申请人:ACIB GMBH AUSTRIAN CENTRE OF IND BIOTECHNOLOGY
公开号:WO2018185222A1
公开(公告)日:2018-10-11
The present invention relates to polynucleotides capable of catalyzing the aminoacylation of its cognate tRNA with aromatic or aliphatic amino acids to form an aminoacyl-tRNA, polypeptides encoded by such polynucleotides, vectors comprising such polynucleotides, host cells comprising such vectors, pairs of aminoacyl tRNA synthetases and cognate tRNAs, use of such compounds for catalyzing the aminoacylation of aromatic or aliphatic amino acids with corresponding tRNA to form an aminoacyl-tRNA, and methods for catalyzing the aminoacylation of cognate tRNA with aromatic or aliphatic amino acids to form an aminoacyl-tRNA.
[EN] METHIONINE ANALOGUE SYNTHESIS<br/>[FR] SYNTHÈSE D'ANALOGUE DE LA MÉTHIONINE
申请人:ACIB GMBH AUSTRIAN CENTRE OF IND BIOTECHNOLOGY
公开号:WO2019238725A1
公开(公告)日:2019-12-19
The present invention relates to a method for preparing a methionine analogue, comprising contacting a host cell with L-homoserine and one or more nucleophiles and cultivating said host cell and said one or more nucleophiles of (a) in a fermentation broth to produce said methionine analogue, wherein said host cell encodes and stably expresses a L-homoserine-O-acetyl- transferase (HSAT) and an O-acetyl-L-homoserine sulfhydrylase (OAHS). The present invention also relates to host cells encoding and expressing such HSAT and OAHS, as well as uses thereof for producing a methionine analogue.
[EN] PYRROLYSYL-tRNA SYNTHETASE VARIANTS AND USES THEREOF<br/>[FR] VARIANTS DE PYRROLYSYL-ARNT SYNTHÉTASE ET LEURS UTILISATIONS
申请人:ENGENES BIOTECH GMBH
公开号:WO2022003142A1
公开(公告)日:2022-01-06
The present invention relates to the field of pyrrolysyl-tRNA synthetases, their variants and uses thereof. Particularly, the present invention relates to variants (mutants) of parent pyrrolysyl-tRNA synthetases, wherein said variants have pyrrolysyl-tRNA synthetase activity and exhibit altered properties relative to the corresponding parent pyrrolysyl-tRNA synthetase.