National Natural Science Foundation of China (NSFC)
12034006
中国
National Natural Science Foundation of China (NSFC)
32071209
中国
National Natural Science Foundation of China (NSFC)
32200994
中国
National Natural Science Foundation of China (NSFC)
31971122
中国
引用
ジャーナル: Viruses / 年: 2022 タイトル: A Capsid Structure of GP4 with a Triangulation Number T = 9. 著者: Jing Zheng / Wenyuan Chen / Hao Xiao / Fan Yang / Xiaowu Li / Jingdong Song / Lingpeng Cheng / Hongrong Liu / 要旨: GP4, a new phage, is a short-tailed phage. Few structures of phages have been resolved to near-atomic resolution until now. Here, we present a 3.7 Å resolution structure of the GP4 head by cryo- ...GP4, a new phage, is a short-tailed phage. Few structures of phages have been resolved to near-atomic resolution until now. Here, we present a 3.7 Å resolution structure of the GP4 head by cryo-electron microscopy (cryo-EM). The GP4 head contains 540 copies of major capsid protein (MCP) gp2 and 540 copies of cement protein (CP) gp1 arranged in an icosahedral shell with a triangulation number T = 9. The structures of gp2 and gp1 show a canonical HK97-like fold and an Ig-like fold, respectively. The trimeric CPs stick on the surface of the head along the quasi-threefold axis of the icosahedron generating a sandwiched three-layer electrostatic complementary potential, thereby enhancing the head stability. The assembly pattern of the GP4 head provides a platform for the further exploration of the interaction between and corresponding phages.
A: Major capsid protein B: Major capsid protein C: Major capsid protein D: Major capsid protein E: Major capsid protein F: Major capsid protein G: Major capsid protein H: Major capsid protein I: Major capsid protein J: Virion associated protein K: Virion associated protein L: Virion associated protein M: Virion associated protein N: Virion associated protein O: Virion associated protein P: Virion associated protein Q: Virion associated protein R: Virion associated protein
A: Major capsid protein B: Major capsid protein C: Major capsid protein D: Major capsid protein E: Major capsid protein F: Major capsid protein G: Major capsid protein H: Major capsid protein I: Major capsid protein J: Virion associated protein K: Virion associated protein L: Virion associated protein M: Virion associated protein N: Virion associated protein O: Virion associated protein P: Virion associated protein Q: Virion associated protein R: Virion associated protein
A: Major capsid protein B: Major capsid protein C: Major capsid protein D: Major capsid protein E: Major capsid protein F: Major capsid protein G: Major capsid protein H: Major capsid protein I: Major capsid protein J: Virion associated protein K: Virion associated protein L: Virion associated protein M: Virion associated protein N: Virion associated protein O: Virion associated protein P: Virion associated protein Q: Virion associated protein R: Virion associated protein
x 5
icosahedral pentamer
2.55 MDa, 90 ポリマー
分子量 (理論値)
分子数
合計 (水以外)
2,548,777
90
ポリマ-
2,548,777
90
非ポリマー
0
0
水
0
タイプ
名称
対称操作
数
identity operation
1_555
x,y,z
1
point symmetry operation
4
4
A: Major capsid protein B: Major capsid protein C: Major capsid protein D: Major capsid protein E: Major capsid protein F: Major capsid protein G: Major capsid protein H: Major capsid protein I: Major capsid protein J: Virion associated protein K: Virion associated protein L: Virion associated protein M: Virion associated protein N: Virion associated protein O: Virion associated protein P: Virion associated protein Q: Virion associated protein R: Virion associated protein