6YYJ

Crystal structure of native Phycocyanin from T. elongatus in spacegroup P21212 at 2.1 Angstroms

6YYJ の概要

• エントリーDOI: 10.2210/pdb6yyj/pdb
• 分子名称: C-phycocyanin alpha chain, C-phycocyanin beta chain, 3-[5-[[(3~{R},4~{R})-3-ethyl-4-methyl-5-oxidanylidene-3,4-dihydropyrrol-2-yl]methyl]-2-[[5-[(~{Z})-(4-ethyl-3-methyl-5-oxidanylidene-pyrrol-2-ylidene)methyl]-3-(3-hydroxy-3-oxopropyl)-4-methyl-1~{H}-pyrrol-2-yl]methyl]-4-methyl-1~{H}-pyrrol-3-yl]propanoic acid, ... (6 entities in total)
• 機能のキーワード: phytocyanin, antenna protein, photosynthesis, chromophore, light-harvesting
• 由来する生物種: Thermosynechococcus elongatus; 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 113868.05

構造登録者

Feiler, C.G.,Falke, S.,Sarrou, I. (登録日: 2020-05-05, 公開日: 2021-01-20, 最終更新日: 2024-01-24)

主引用文献

Sarrou, I.,Feiler, C.G.,Falke, S.,Peard, N.,Yefanov, O.,Chapman, H.
C-phycocyanin as a highly attractive model system in protein crystallography: unique crystallization properties and packing-diversity screening.
Acta Crystallogr D Struct Biol, 77:224-236, 2021

PubMed Abstract: The unique crystallization properties of the antenna protein C-phycocyanin (C-PC) from the thermophilic cyanobacterium Thermosynechococcus elongatus are reported and discussed. C-PC crystallizes in hundreds of significantly different conditions within a broad pH range and in the presence of a wide variety of precipitants and additives. Remarkably, the crystal dimensions vary from a few micrometres, as used in serial crystallography, to several hundred micrometres, with a very diverse crystal morphology. More than 100 unique single-crystal X-ray diffraction data sets were collected from randomly selected crystals and analysed. The addition of small-molecule additives revealed three new crystal packings of C-PC, which are discussed in detail. The high propensity of this protein to crystallize, combined with its natural blue colour and its fluorescence characteristics, make it an excellent candidate as a superior and highly adaptable model system in crystallography. C-PC can be used in technical and methods development approaches for X-ray and neutron diffraction techniques, and as a system for comprehending the fundamental principles of protein crystallography.

PubMed: 33559611
DOI: 10.1107/S2059798320016071

実験手法

X-RAY DIFFRACTION (2.16 Å)