2V8A

The structure of Thermosynechococcus elongatus allophycocyanin at 3.5 Angstroems.

2V8A の概要

• エントリーDOI: 10.2210/pdb2v8a/pdb
• 分子名称: ALLOPHYCOCYANIN ALPHA CHAIN, ALLOPHYCOCYANIN BETA CHAIN, PHYCOCYANOBILIN (3 entities in total)
• 機能のキーワード: antenna, transport, chromophore, methylation, bile pigment, phycobilisome, photosynthesis, light-harvesting, electron transport
• 由来する生物種: THERMOSYNECHOCOCCUS ELONGATUS; 詳細
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 36122.19

構造登録者

Murray, J.W.,Maghlaoui, K.,Barber, J. (登録日: 2007-08-06, 公開日: 2007-12-11, 最終更新日: 2023-12-13)

主引用文献

Murray, J.W.,Maghlaoui, K.,Barber, J.
The Structure of Allophycocyanin from Thermosynechococcus Elongatus at 3.5 A Resolution.
Acta Crystallogr.,Sect.F, 63:998-, 2007

PubMed Abstract: Cyanobacteria and red algae use light-harvesting pigments bound by proteins to capture solar radiation and to channel excitation energy into their reaction centres. In most cyanobacteria, a multi-megadalton soluble structure known as the phycobilisome is a major light-harvesting system. Allophycocyanin is the main component of the phycobilisome core, forming a link between the rest of the phycobilisome and the reaction-centre core. The crystal structure of allophycocyanin from Thermosynechococcus elongatus (TeAPC) has been determined and refined at 3.5 A resolution to a crystallographic R value of 26.0% (R(free) = 28.5%). The structure was solved by molecular replacement using the allophycocyanin structure from Spirulina platensis as the search model. The asymmetric unit contains an (alphabeta) monomer which is expanded by symmetry to a crystallographic trimer.

PubMed: 18084078
DOI: 10.1107/S1744309107050920

実験手法

X-RAY DIFFRACTION (3.5 Å)