2FL8

Fitting of the gp10 trimer structure into the cryoEM map of the bacteriophage T4 baseplate in the hexagonal conformation.

2FL8 の概要

• エントリーDOI: 10.2210/pdb2fl8/pdb
• 関連するPDBエントリー: 1S2E 2FKK 2FL9
• EMDBエントリー: 1048
• 分子名称: Baseplate structural protein Gp10 (1 entity in total)
• 機能のキーワード: bacteriophage t4; baseplate; tail; evolution; gp10; structural comparisons, virus-viral protein complex, virus/viral protein
• 由来する生物種: Enterobacteria phage T4
• タンパク質・核酸の鎖数: 18
• 化学式量合計: 1194655.36

構造登録者

Leiman, P.G.,Shneider, M.M.,Mesyanzhinov, V.V.,Rossmann, M.G. (登録日: 2006-01-05, 公開日: 2006-04-04, 最終更新日: 2024-02-14)

主引用文献

Leiman, P.G.,Shneider, M.M.,Mesyanzhinov, V.V.,Rossmann, M.G.
Evolution of bacteriophage tails: structure of t4 gene product 10
J.Mol.Biol., 358:912-921, 2006

PubMed Abstract: The success of tailed bacteriophages to infect cells far exceeds that of most other viruses on account of their specialized tail and associated baseplate structures. The baseplate protein gene product (gp) 10 of bacteriophage T4, whose structure was determined to 1.2 A resolution, was fitted into the cryo-electron microscopy structures of the pre and post-infection conformations of the virus. gp10 functions as a molecular lever that rotates and extends the hinged short tail fibers to facilitate cell attachment. The central folding motif of the gp10 trimer is similar to that of the baseplate protein gp11 and to the receptor-binding domain of the short tail fiber, gp12. The three proteins comprise the periphery of the baseplate and interact with each other. The structural and functional similarities of gp10, gp11, and gp12 and their sequential order in the T4 genome suggest that they evolved separately, subsequent to gene triplication from a common ancestor. Such events are usual in the evolution of complex organelles from a common primordial molecule.

PubMed: 16554069
DOI: 10.1016/j.jmb.2006.02.058

実験手法

ELECTRON MICROSCOPY (12 Å)