Synchrotron small-angle X-ray scattering investigation on Integral membrane protein light-harvesting complex LH2 from photosynthetic bacterium rhodopseudomonas acidophila

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Synchrotron small-angle X-ray scattering investigation on Integral membrane protein light-harvesting complex LH2 from photosynthetic bacterium rhodopseudomonas acidophila
Engineering Village 2
2006 Elsevier Inc.
Accession number: 8990331

Title: Synchrotron small-angle X-ray scattering investigation on Integral membrane protein light-harvesting complex LH2 from photosynthetic bacterium rhodopseudomonas acidophila

Authors: Du Lu-Chao1 ; Weng Yu-Xiang1 ; Hong Xin-Guo; Xian Ding-Chang; Katsumi, K.

Author affiliation: 1 Beijing Nat. Lab. for Condensed Matter Phys., Chinese Acad. of Sci., Beijing, China

Serial title: Chinese Physics Letters

Abbreviated serial title: Chin. Phys. Lett. (China)

Volume: 23

Issue: 7

Publication date: July 2006

Pages: 1861-3

Language: English

ISSN: 0256-307X

CODEN: CPLEEU

Document type: Journal article (JA)

Publisher: Chinese Phys. Soc

Country of publication: China

Material Identity Number: H857-2006-006

Abstract: Structures of membrane protein in solution are different from that in crystal phase. We present the primary results of small angle x-ray scattering (SAXS) resolved topological structures of a light harvesting antenna membrane protein complex LH2 from photosynthetic bacteria Rhodopseudomonas acidophila in detergent solution for the first time. Our results show that the elliptical shape of the LH2 complex in solution clearly deviates from its circular structure in crystal phase determined by x-ray diffraction. This result provides an insight into the structure and function interplay in LH2

Number of references: 27

Inspec controlled terms: biomembranes - microorganisms - proteins - X-ray diffraction - X-ray scattering

Uncontrolled terms: synchrotron small-angle x-ray scattering - protein light-harvesting complex LH2 integral membrane - photosynthetic bacterium rhodopseudomonas acidophila - membrane protein - SAXS - topological structures - light harvesting antenna membrane protein complex - x-ray diffraction

Inspec classification codes: A8720 Membrane biophysics - A8725F Physics of subcellular structures - A7870C X-ray scattering (condensed matter)

Treatment: Experimental (EXP)

Discipline: Physics (A)

DOI: 10.1088/0256-307X/23/7/057

Database: Inspec

Copyright 2006, The Institution of Engineering and Technology

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