4-甲基- l-谷氨酸非对映异构体的酶法合成

Journal of applied biochemistry Pub Date : 1984-10-01
A Righini-Tapie, R Azerad
{"title":"4-甲基- l-谷氨酸非对映异构体的酶法合成","authors":"A Righini-Tapie,&nbsp;R Azerad","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>(2S,4R)-\"erythro\"- and (2S,4S)-\"threo\"-4-methylglutamic acids have been prepared by glutamate dehydrogenase-catalyzed reductive amination of 2-keto-(R,S)-4-methylglutaric acid, in the presence of NH4+ ions, NAD+, and a NADH recycling system (ethanol-alcohol dehydrogenase), followed by separation by anion-exchange chromatography. Nuclear magnetic resonance, electrophoretic, chromatographic, and optical properties of both isomers are reported, together with the conditions leading to the four-carbon epimerization.</p>","PeriodicalId":14978,"journal":{"name":"Journal of applied biochemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1984-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An enzymatic synthesis of 4-methyl-L-glutamic acid diastereoisomers.\",\"authors\":\"A Righini-Tapie,&nbsp;R Azerad\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>(2S,4R)-\\\"erythro\\\"- and (2S,4S)-\\\"threo\\\"-4-methylglutamic acids have been prepared by glutamate dehydrogenase-catalyzed reductive amination of 2-keto-(R,S)-4-methylglutaric acid, in the presence of NH4+ ions, NAD+, and a NADH recycling system (ethanol-alcohol dehydrogenase), followed by separation by anion-exchange chromatography. Nuclear magnetic resonance, electrophoretic, chromatographic, and optical properties of both isomers are reported, together with the conditions leading to the four-carbon epimerization.</p>\",\"PeriodicalId\":14978,\"journal\":{\"name\":\"Journal of applied biochemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1984-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of applied biochemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of applied biochemistry","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

采用谷氨酸脱氢酶催化2-酮-(R,S)-4-甲基戊二酸的还原胺化反应,在NH4+离子、NAD+和NADH循环体系(乙醇-乙醇脱氢酶)存在下制备了(2S,4R)-“赤”-和(2S,4S)-“三”-4-甲基戊二酸,然后用阴离子交换色谱分离。报道了两种异构体的核磁共振、电泳、色谱和光学性质,以及导致四碳外映化的条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An enzymatic synthesis of 4-methyl-L-glutamic acid diastereoisomers.

(2S,4R)-"erythro"- and (2S,4S)-"threo"-4-methylglutamic acids have been prepared by glutamate dehydrogenase-catalyzed reductive amination of 2-keto-(R,S)-4-methylglutaric acid, in the presence of NH4+ ions, NAD+, and a NADH recycling system (ethanol-alcohol dehydrogenase), followed by separation by anion-exchange chromatography. Nuclear magnetic resonance, electrophoretic, chromatographic, and optical properties of both isomers are reported, together with the conditions leading to the four-carbon epimerization.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信