Rationally engineered variants of S-adenosylmethionine (SAM) synthase: reduced product inhibition and synthesis of artificial cofactor homologues
作者:M. Dippe、W. Brandt、H. Rost、A. Porzel、J. Schmidt、L. A. Wessjohann
DOI:10.1039/c4cc08478k
日期:——
Rational redesign of bacterialS-adenosylmethionine-synthase by 3D-modelling and docking led to variants that allow synthesis of methylation cofactor SAM (AdoMet) without product inhibition, and of higher alkyl homologues.
A method for enhancing the palatability of aquaculture food, the method comprising treating the food with a compound of Formula I:
wherein R
1
, R
2
, R
3
, and n are as defined herein, are disclosed.
Disclosed are polyol esters comprising a polyol having at least one hydroxyl group esterified to at least one compound having a carboxyl group. Methods of making the polyol ester compounds are also disclosed. The invention also relates to feed compositions comprising polyol ester compounds.
[EN] PROCESS FOR PRODUCING SULFUR-CONTAINING AMINO ACIDS<br/>[FR] PROCÉDÉ DE PRODUCTION D'ACIDES AMINÉS SULFURÉS
申请人:SUMITOMO CHEMICAL CO
公开号:WO2011126129A1
公开(公告)日:2011-10-13
The present invention relates to a process for producing a sulfur-containing amino acid, comprising a step of oxidizing a 2-aminoethanol compound having, at position 2, a sulfur-containing hydrocarbon group having 1 to 24 carbon atoms in the presence of copper and water.
[EN] PROCESS FOR PRODUCING SULFUR-CONTAINING AMINO ACID OR SALT THEREOF<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN ACIDE AMINÉ CONTENANT DU SOUFRE OU DE L'UN DE SES SELS
申请人:SUMITOMO CHEMICAL CO
公开号:WO2011118849A1
公开(公告)日:2011-09-29
According to the present invention, a new process for producing a sulfur-containing amino acid without using of hydrogen cyanide or sodium azide which requires careful handling as a raw material can be provided. The present invention relates to a process for producing a sulfur-containing amino acid represented by the following formula (1) or a salt thereof: wherein R1 is an alkyl group having 1 to 12 carbon atoms and optionally having substituents or a cycloalkyl group having 3 to 12 carbon atoms and optionally having substituents, and n is an integral number of from 1 to 4, comprising a step of reacting a sulfur-containing 2-ketocarboxylic acid represented by the formula (2) or a salt thereof: wherein R1 and n mean the same as defined above, with ammonia and hydrogen in the presence of a transition metal catalyst.