Clarification of the Binding Mode of Teleocidin and Benzolactams to the Cys2 Domain of Protein Kinase Cδ by Synthesis of Hydrophobically Modified, Teleocidin-Mimicking Benzolactams and Computational Docking Simulation
作者:Yasuyuki Endo、Shunji Takehana、Michihiro Ohno、Paul E. Driedger、Silvia Stabel、Miho Y. Mizutani、Nobuo Tomioka、Akiko Itai、Koichi Shudo
DOI:10.1021/jm970704s
日期:1998.4.1
structures and the activities of these compounds has attracted much attention because of the marked structural dissimilarities. The benzolactam 5, with an eight-membered lactam ring and benzene ring instead of the nine-membered lactam ring and indole ring of teleocidins, reproduces the active ring conformation and biological activities of teleocidins. Herein we describe the synthesis of benzolactams with
Unexpected Reactions of α,β‐Unsaturated Fatty Acids Provide Insight into the Mechanisms of CYP152 Peroxygenases
作者:Yuanyuan Jiang、Wei Peng、Zhong Li、Cai You、Yue Zhao、Dandan Tang、Binju Wang、Shengying Li
DOI:10.1002/anie.202111163
日期:2021.11.8
The presence of a cis or trans Cα=Cβ doublebond in unsaturated fattyacid substrates dramatically changes the catalytic efficiency and chemo-/regioselectivity of three representative CYP152 peroxygenases including OleTJE, P450SPα, and P450BSβ, which provides new insights into their unusual catalytic mechanisms.
一个的存在顺式或反式c ^ α = C β不饱和脂肪酸底物的双键急剧变化的三种具有代表性的CYP152过氧合酶包括OLET催化效率和化疗/区域选择性JE,P450 SPα,和P450 BSβ,它提供了新的见解它们不寻常的催化机制。
Role of the Hydrophobic Moiety of Tumor Promoters. Synthesis and Activity of Benzolactams with Alkyl Substituents at Various Positions.
作者:Yasuyuki ENDO、Michihiro OHNO、Shunji TAKEHANA、Paul E. DRIEDGER、Silvia STABEL、Koichi SHUDO
DOI:10.1248/cpb.45.424
日期:——
We synthesized benzolactams with hydrophobic substituents at various positions as analogs of (-)-benzolactam-V8-310 ((-)-BL-V8-310, 1) which reproduces the active conformation and biological activity of teleocidins. Structure-activity data indicate that the existence of a hydrophobic region between C-2 and C-9, and the steric factor at C-8 play critical roles in the appearance of biological activities.
Enantioselective α hydroxylation of carboxylic acids with molecular oxygen catalyzed by the α oxidation enzyme system of young pea leaves (Pisum sativum): A substrate selectivity study
作者:Waldemar Adam、Michael Lazarus、Chantu R. Saha-Mǒller、Peter Schreier
DOI:10.1016/0957-4166(96)00283-2
日期:1996.8
The substrate selectivity of the a oxidation of carboxylic acids I by crude homogenate of young pea leaves was investigated. Saturated fatty acids with 7 to 16 carbon atoms and oleic acid were transformed to the enantiomerically pure (R)-2-hydroxy acids 2 in the presence of molecular oxygen. Copyright (C) 1996 Elsevier Science Ltd
Keratin fiber strengthening agent and method for strengthening keratin fiber