2Y6X

Structure of Psb27 from Thermosynechococcus elongatus

2Y6X の概要

• エントリーDOI: 10.2210/pdb2y6x/pdb
• 分子名称: PHOTOSYSTEM II 11 KD PROTEIN, CHLORIDE ION (3 entities in total)
• 機能のキーワード: photosynthesis
• 由来する生物種: THERMOSYNECHOCOCCUS ELONGATUS
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 12724.75

構造登録者

Michoux, F.,Takasaka, K.,Boehm, M.,Nixon, P.J.,Murray, J.W. (登録日: 2011-01-27, 公開日: 2012-01-11, 最終更新日: 2023-12-20)

主引用文献

Michoux, F.,Takasaka, K.,Boehm, M.,Komenda, J.,Nixon, P.J.,Murray, J.W.
Crystal Structure of the Psb27 Assembly Factor at 1.6A: Implications for Binding to Photosystem II.
Photosynth.Res., 110:169-, 2012

PubMed Abstract: The biogenesis and oxygen-evolving activity of cyanobacterial Photosystem II (PSII) is dependent on a number of accessory proteins not found in the crystallised dimeric complex. These include Psb27, a small lipoprotein attached to the lumenal side of PSII, which has been assigned a role in regulating the assembly of the Mn(4)Ca cluster catalysing water oxidation. To gain a better understanding of Psb27, we have determined in this study the crystal structure of the soluble domain of Psb27 from Thermosynechococcus elongatus to a resolution of 1.6 Å. The structure is a four-helix bundle, similar to the recently published solution structures of Psb27 from Synechocystis PCC 6803 obtained by nuclear magnetic resonance (NMR) spectroscopy. Importantly, the crystal structure presented here helps us resolve the differences between the NMR-derived structural models. Potential binding sites for Psb27 within PSII are discussed in light of recent biochemical data in the literature.

PubMed: 22193820
DOI: 10.1007/S11120-011-9712-7

実験手法

X-RAY DIFFRACTION (1.6 Å)