4PJ0

Structure of T.elongatus Photosystem II, rows of dimers crystal packing

4PJ0 の概要

• エントリーDOI: 10.2210/pdb4pj0/pdb
• 分子名称: Photosystem Q(B) protein 1, Photosystem II reaction center protein K, Photosystem II reaction center protein L, ... (37 entities in total)
• 機能のキーワード: membrane protein, photosystem ii, c12e8, oxidoreductase, electron transport
• 由来する生物種: Thermosynechococcus elongatus; 詳細
• 細胞内の位置: Cellular thylakoid membrane {ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005, ECO:0000269|Ref: P0A444; Cellular thylakoid membrane ; Single-pass membrane protein : Q9F1K9 Q8DIN8 Q8DHA7 Q8DIQ0 Q8DJI1 Q9F1R6 Q8DKM3 Q8DJ43 Q8DJZ6 P59087; Cellular thylakoid membrane ; Peripheral membrane protein ; Lumenal side : P0A431 Q9F1L5; Cellular thylakoid membrane {ECO:0000255|HAMAP-Rule:MF_01378, ECO:0000269|PubMed:12881497, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005, ECO:0000269|Ref: P0A386; Cellular thylakoid membrane ; Multi- pass membrane protein : Q8DHJ2; Cellular thylakoid membrane {ECO:0000255|HAMAP-Rule:MF_01496, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005, ECO:0000269|Ref: Q8DIF8 Q8CM25; Cellular thylakoid membrane {ECO:0000255|HAMAP-Rule:MF_00642, ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16049768, ECO:0000269|PubMed:16172937, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005, ECO:0000269|Ref: Q8DIP0; Cellular thylakoid membrane {ECO:0000269|PubMed:14764885, ECO:0000269|PubMed:16355230, ECO:0000269|PubMed:17935689, ECO:0000269|PubMed:19219048, ECO:0000269|PubMed:20558739, ECO:0000269|PubMed:21367867, ECO:0000269|PubMed:22665786, ECO:0000269|PubMed:23413188, ECO:0000269|PubMed:25006873, ECO:0000269|PubMed:25043005, ECO:0000269|Ref: Q8DIN9
• タンパク質・核酸の鎖数: 40
• 化学式量合計: 747422.82

構造登録者

Hellmich, J.,Bommer, M.,Burkhardt, A.,Ibrahim, M.,Kern, J.,Meents, A.,Mueh, F.,Dobbek, H.,Zouni, A. (登録日: 2014-05-10, 公開日: 2014-10-22, 最終更新日: 2024-10-23)

主引用文献

Hellmich, J.,Bommer, M.,Burkhardt, A.,Ibrahim, M.,Kern, J.,Meents, A.,Muh, F.,Dobbek, H.,Zouni, A.
Native-like Photosystem II Superstructure at 2.44 angstrom Resolution through Detergent Extraction from the Protein Crystal.
Structure, 22:1607-1615, 2014

PubMed Abstract: Photosystem II (PSII) catalyzes a key step in photosynthesis, the oxidation of water to oxygen. Excellent structural models exist for the dimeric PSII core complex of cyanobacteria, but higher order physiological assemblies readily dissociate when solubilized from the native thylakoid membrane with detergent. Here, we describe the crystallization of PSII from Thermosynechococcus elongatus with a postcrystallization treatment involving extraction of the detergent C12E8. This resulted in a transition from Type II to Type I-like membrane protein crystals and improved diffraction to 2.44 Å resolution. The obtained PSII packing in precise rows, interconnected by specific pairs of galactolipids and a loop in the PsbO subunit specific to cyanobacteria, is superimposable with previous electron microscopy images of the thylakoid membrane. The study provides a detailed model of such a superstructure and its organization of light-harvesting pigments with possible implications for the understanding of their efficient use of solar energy.

PubMed: 25438669
DOI: 10.1016/j.str.2014.09.007

実験手法

X-RAY DIFFRACTION (2.437 Å)