ジャーナル: J Mol Biol / 年: 2005 タイトル: A three-dimensional cryo-electron microscopy structure of the bacteriophage phiKZ head. 著者: Andrei Fokine / Victor A Kostyuchenko / Andrey V Efimov / Lidia P Kurochkina / Nina N Sykilinda / Johan Robben / Guido Volckaert / Andreas Hoenger / Paul R Chipman / Anthony J Battisti / ...著者: Andrei Fokine / Victor A Kostyuchenko / Andrey V Efimov / Lidia P Kurochkina / Nina N Sykilinda / Johan Robben / Guido Volckaert / Andreas Hoenger / Paul R Chipman / Anthony J Battisti / Michael G Rossmann / Vadim V Mesyanzhinov / 要旨: The three-dimensional structure of the Pseudomonas aeruginosa bacteriophage phiKZ head has been determined by cryo-electron microscopy and image reconstruction to 18A resolution. The head has ...The three-dimensional structure of the Pseudomonas aeruginosa bacteriophage phiKZ head has been determined by cryo-electron microscopy and image reconstruction to 18A resolution. The head has icosahedral symmetry measuring 1455 A in diameter along 5-fold axes and a unique portal vertex to which is attached an approximately 1800 A-long contractile tail. The 65 kDa major capsid protein, gp120, is organized into a surface lattice of hexamers, with T = 27 triangulation. The shape and size of the hexamers is similar to the hexameric building blocks of the bacteriophages T4, phi29, P22, and HK97. Pentameric vertices of the capsid are occupied by complexes composed of several special vertex proteins. The double-stranded genomic DNA is packaged into a highly condensed series of layers, separated by 24 A, that follow the contour of the inner wall of the capsid.
pH: 7.5 / 詳細: 50 mM tris-Acetate-EDTA buffer (pH 7.5)
凍結
凍結剤: ETHANE / チャンバー内湿度: 40 % / 装置: HOMEMADE PLUNGER / 詳細: Vitrification instrument: in house manufactured / 手法: hand blot 3 seconds, pluging during blot
想定した対称性 - 点群: I (正20面体型対称) / アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 18.0 Å / 解像度の算出法: FSC 0.33 CUT-OFF / ソフトウェア - 名称: SPIDER 詳細: reconstruction was performed using the icosahedral symmetry 使用した粒子像数: 2000