CHLOROPHYLL ORIENTATION IN CRYSTALS OF BACTERIOCHLOROPHYLL-PROTEIN FROM GREEN PHOTOSYNTHETIC BACTERIA

被引：14

作者：

OLSON, RA

JENNINGS, WH

OLSON, JM

机构：

[1] Laboratory of Physical Biology, National Institute of Arthritis and Metabolic Diseases, National Institutes of Health, Bethesda

[2] The Biology Department, Brookhaven National Laboratory, Upton

来源：

ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS | 1969年 / 129卷 / 01期

关键词：

D O I：

10.1016/0003-9861(69)90146-5

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Optical properties of single crystals of a bacteriochlorophyll-protein complex from Chloropseudomonas ethylicum were investigated. The absorption spectrum of these crystals is essentially the same as that of the complex in solution. The crystals are weakly dichroic at both the 603-nm (D = 1 1.21) and the 809-nm (D = 1.30) absorbances. This dichroism is confirmed by selective dispersion of birefringence: Negative at 603 nm and positive at 809 nm with respect to the optic axis. The sites of bacteriochlorophyll binding are therefore oriented with respect to the crystal axes. A radial arrangement of the porphyrin sites within each macromolecule is proposed and evaluated. © 1969.

引用

页码：30 / &