The Eighth Bacteriochlorophyll Completes the Excitation Energy Funnel in the FMO Protein

被引：173

作者：

Busch, Marcel Schmidt Am ^{[1
]}

Mueh, Frank ^{[2
]}

Madjet, Mohamed El-Amine ^{[2
]}

Renger, Thomas ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Theoret Phys, A-4040 Linz, Austria

[2] Free Univ Berlin, Inst Chem & Biochem, D-14195 Berlin, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 02期

关键词：

BACTERIUM CHLOROFLEXUS-AURANTIACUS; QUANTUM COHERENCE; PROSTHECOCHLORIS-AESTUARII; ANTENNA PROTEIN; PHOTOSYSTEM-I; CHLOROSOMES; FLUORESCENCE; ORGANIZATION; DYNAMICS; SPECTRA;

D O I：

10.1021/jz101541b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Fenna-Matthews-Olson (FMO) light-harvesting protein connects the outer antenna system (chlorosome/baseplate) with the reaction center complex in green sulfur bacteria. Since its first structure determination in the mid-70s, this pigment-protein complex has become an important model system to study excitation energy transfer. Recently, an additional bacteriochlorophyll a(the eighth) pigment was discovered in each subunit of this homotrimer. Our structure-based calculations of the optical properties of the FMO protein demonstrate that the eighth pigment is the linker to the baseplate, confirming recent suggestions from crystallographic studies.

引用

页码：93 / 98

页数：6

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