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S-腺苷-L-蛋氨酸:(S)-山荷叶碱 9-O-甲基转移酶,在原小檗碱生物合成中一种高度立体和区域特异性的酶。

S-adenosyl-L-methionine: (S)-scoulerine 9-O-methyltransferase, a highly stereo- and regio-specific enzyme in tetrahydroprotoberberine biosynthesis.

机构信息

Lehrstuhl für Pharmazeutische Biologie der Universität München, Karlstrasse 29, D-8000, München 2, FRG.

出版信息

Plant Cell Rep. 1985 Feb;4(1):36-9. doi: 10.1007/BF00285501.

DOI:10.1007/BF00285501
PMID:24253642
Abstract

Suspension cultures of Berberis species are useful sources for the detection and isolation of a new enzyme which transfers the methyl group from S-adenosyl-L-methionine specifically to the 9-position of the (S)-enantiomer of scoulerine, producing (S)-tetrahydrocolumbamine. The enzyme was enriched 27-fold; it is not particle bound, has a pH optimum of 8.9, a molecular weight of 63 000 and shows a high degree of substrate specificity.

摘要

小檗属悬浮培养物是一种有用的来源,可以从中检测和分离一种新的酶,该酶能特异性地将 S-腺苷-L-甲硫氨酸的甲基基团转移到(S)-构型的斯克劳林的 9 位,生成(S)-四氢刻叶紫堇碱。该酶被富集了 27 倍;它不是颗粒结合的,最适 pH 值为 8.9,分子量为 63000,具有高度的底物特异性。

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Anal Biochem. 1976 May 7;72:248-54. doi: 10.1016/0003-2697(76)90527-3.
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Conversion of reticuline into scoulerine by a cell free preparation from Macleaya microcarpa cell suspension cultures.小果博落回细胞悬浮培养物的无细胞制剂将网叶番荔枝碱转化为非洲防己碱。
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黄罂粟中参与青藤碱生物合成的O-甲基转移酶的分离与鉴定
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4
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5
Microbial production of isoquinoline alkaloids as plant secondary metabolites based on metabolic engineering research.基于代谢工程研究的微生物生产异喹啉生物碱作为植物次生代谢物。
Proc Jpn Acad Ser B Phys Biol Sci. 2013;89(5):165-82. doi: 10.2183/pjab.89.165.
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Molecular characterization of O-methyltransferases involved in isoquinoline alkaloid biosynthesis in Coptis japonica.黄连中参与异喹啉生物碱生物合成的 O-甲基转移酶的分子特征。
Proc Jpn Acad Ser B Phys Biol Sci. 2010;86(7):757-68. doi: 10.2183/pjab.86.757.