5ZHY

Structural characterization of the HCoV-229E fusion core

5ZHY の概要

• エントリーDOI: 10.2210/pdb5zhy/pdb
• 分子名称: Spike glycoprotein, Spike glycoprotein (1 entity in total)
• 機能のキーワード: membrane fusion, broad-spectrum inhibitor design, viral protein
• 由来する生物種: Human coronavirus 229E; 詳細
• タンパク質・核酸の鎖数: 6
• 化学式量合計: 97367.99

構造登録者

Zhang, W.,Zheng, Q.,Yan, M.,Chen, X.,Yang, H.,Zhou, W.,Rao, Z. (登録日: 2018-03-13, 公開日: 2018-06-06, 最終更新日: 2023-11-22)

主引用文献

Zhang, W.,Zheng, Q.,Yan, M.,Chen, X.,Yang, H.,Zhou, W.,Rao, Z.
Structural characterization of the HCoV-229E fusion core.
Biochem. Biophys. Res. Commun., 497:705-712, 2018

PubMed Abstract: HCoV-229E spike (S) protein mediates virion attachment to cells and subsequent fusion of the viral and cellular membranes. This protein is composed of an N-terminal receptor-binding domain (S1) and a C-terminal trans-membrane fusion domain (S2). S2 contains a highly conserved heptad repeat 1 and 2 (HR1 and HR2). In this study, the HRs sequences were designed and connected with a flexible linker. The recombinant fusion core protein was crystallized and its structure was solved at a resolution of 2.45 Å. Then we characterized the binding of HR1s and HR2s via both sequence alignment and structural analysis. The overall structures, especially the residues in some positions of HR2 are highly conserved. Fourteen hydrophobic and three polar residues from each HR1 peptide are packed in layers at the coiled-coil interface. These core amino acids can be grouped into seven heptad repeats. Analysis of hydrophobic and hydrophilic interactions between HR2 helix and HR1 helices, shows that the HR1 and HR2 polypeptides are highly complementary in both shape and chemical properties. Furthermore, the available knowledge concerning HCoV-229E fusion core may make it possible to design small molecule or polypeptide drugs targeting membrane fusion, a crucial step of HCoV-229E infection.

PubMed: 29458023
DOI: 10.1016/j.bbrc.2018.02.136

実験手法

X-RAY DIFFRACTION (2.441 Å)