A new biocatalytic route to enantiopure N-carbamoyl amino acids by fast enzyme screening
摘要:
The enantioselective enzymatic deamidation of (rac)-N-carbamoyl amino acid amides (Cbm-AA-NH2) to enantiopure (L)-N-carbamoyl amino acids (Cbm-AA-OH) is described for the first time. Via fast screening methods of biocatalysts several proteases like Chirazyme P1, Chirazyme P2 and Subtilisin were identified, which give conversions of up to 47% and >98% ee. This conversion is most productive on aliphatic and primary amino acids. (C) 2003 Elsevier Science Ltd. All rights reserved.
Docking and Linking of Fragments To Discover Jumonji Histone Demethylase Inhibitors
作者:Magdalena Korczynska、Daniel D. Le、Noah Younger、Elisabet Gregori-Puigjané、Anthony Tumber、Tobias Krojer、Srikannathasan Velupillai、Carina Gileadi、Radosław P. Nowak、Eriko Iwasa、Samuel B. Pollock、Idelisse Ortiz Torres、Udo Oppermann、Brian K. Shoichet、Danica Galonić Fujimori
DOI:10.1021/acs.jmedchem.5b01527
日期:2016.2.25
Development of tool molecules that inhibit Jumonji demethylases allows for the investigation of cancer-associated transcription. While scaffolds such as 2,4-pyridinedicarboxylic acid (2,4-PDCA) are potent inhibitors, they exhibit limited selectivity. To discover new inhibitors for the KDM4 demethylases, enzymes overexpressed in several cancers, we docked a library of 600 000 fragments into the high-resolution
synthesis of N‐carbamoyl‐L‐aminoacids is reported. The procedure, involving the reaction between urea and α‐aminoacids sodium salts, was performed under microwave conditions using an unmodified domestic microwave oven. A careful study of the operative conditions indicated proline (1d) as the less reactive substrate and phenylglycine (1e) as the more reactive one among all the α‐aminoacids tested. Substitution
PROCESS FOR PRODUCING D-N-CARBAMOYL-$g(a)-AMINO ACID
申请人:Kanegafuchi Chemical Industry Co., Ltd.
公开号:EP0801131A1
公开(公告)日:1997-10-15
A process for producing D-N-carbamoyl-α-amino acid from a 5-substituted hydantoin with the use of a hydantoinase produced by a microorganism transformed with a recombinant DNA with a vector DNA and the fragments of a DNA containing genes associated with a hydantoinase originating in a specified microorganism belonging to the genus Bacillus, Agrobacterium or Pseudomonas.
一种用 5-取代的海因生产 D-N-氨基甲酰-α-氨基酸的工艺,该工艺使用的海因酶是由重组 DNA 转化的微生物产生的,重组 DNA 的载体 DNA 和 DNA 片段含有与海因酶相关的基因,这些基因来源于属于芽孢杆菌属、农杆菌属或假单胞菌属的特定微生物。
STEREOSTRUCTURE OF DECARBAMYLASE AND METHOD OF USING THE SAME
申请人:Kaneka Corporation
公开号:EP1209234A1
公开(公告)日:2002-05-29
The present invention reveals the stereostructure of decarbamylase by X-ray crystallography and provides a decarbamylase mutant, which is more useful for industrial applications, obtained by molecular design utilizing the stereostructure for the purpose of improving the reactivity of decarbamylase to D-N-carbamoyl-α-amino acid which is a substrate thereof. Specifically, the present invention relates to the stereostructure of decarbamylase determined by X-ray crystallography; a stereostructure model of a decarbamylase mutant; a stereostructure model of a complex thereof with a substrate, a product, and the like; a molecular design method utilizing these stereostructures; a decarbamylase mutant obtained by the method; and a method for designing and producing a protein mutant having a structure similar to that of decarbamylase.
本发明通过X射线晶体学揭示了脱氨基甲酰酶的立体结构,并提供了一种脱氨基甲酰酶突变体,该突变体通过利用该立体结构进行分子设计而获得,更有利于工业应用,其目的是提高脱氨基甲酰酶对作为其底物的D-N-氨基甲酰-α-氨基酸的反应活性。具体而言,本发明涉及通过 X 射线晶体学确定的脱氨基甲酰酶的立体结构;脱氨基甲酰酶突变体的立体结构模型;其与底物、产物等的复合物的立体结构模型;利用这些立体结构的分子设计方法;通过该方法获得的脱氨基甲酰酶突变体;以及设计和生产具有与脱氨基甲酰酶相似结构的蛋白质突变体的方法。