کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9607567 | 44773 | 2005 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-aggregates of bacteriochlorophylls-c, d and e in a light-harvesting antenna system of green photosynthetic bacteria: Effect of stereochemistry at the chiral 3-(1-hydroxyethyl) group on the supramolecular arrangement of chlorophyllous pigments
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Green photosynthetic bacteria possess light-harvesting antenna systems, called chlorosomes, in which a number of bacteriochlorophyll(BChl)-c/d/e molecules self-aggregate to form rod-shaped oligomers. All BChls-c/d/e have a 1-hydroxyethyl group at the 31-position and are 31-epimeric mixtures at various ratios. These stereoisomers were isolated and structurally determined by several experimental techniques. In vitro studies on their self-aggregation indicated that the 31-stereochemistry affected the supramolecular structures of the chlorosomal assemblies. Some recent reports suggested that both stereoisomers are required for making rod-shaped chlorosome-type aggregates, i.e., the 31R/S-stereoisomers co-operate in the construction of the antenna system. The synthetic models of BChls possessing a chiral secondary alcoholic group also exhibited stereochemical control of the self-aggregation. In this review, we will discuss the unique stereochemical control on the chlorosomal BChl self-aggregates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 6, Issues 2â3, October 2005, Pages 89-107
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 6, Issues 2â3, October 2005, Pages 89-107
نویسندگان
Tomohiro Miyatake, Hitoshi Tamiaki,