4RM0

Crystal structure of Norovirus OIF P domain in complex with Lewis a trisaccharide

4RM0 の概要

• エントリーDOI: 10.2210/pdb4rm0/pdb
• 関連するPDBエントリー: 4RLZ
• 関連するBIRD辞書のPRD_ID: PRD_900129 PRD_900130
• 分子名称: Capsid protein, beta-D-galactopyranose-(1-3)-[alpha-L-fucopyranose-(1-4)]2-acetamido-2-deoxy-beta-D-glucopyranose, beta-D-galactopyranose-(1-3)-[alpha-L-fucopyranose-(1-4)]2-acetamido-2-deoxy-alpha-D-glucopyranose, ... (4 entities in total)
• 機能のキーワード: mixed alpha/beta, receptor binding, hbga, virus caspid, viral protein
• 由来する生物種: Norovirus
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 69909.50

構造登録者

Liu, W.,Chen, Y.,Tan, M.,Xia, M.,Li, X.,Jiang, X.,Rao, Z. (登録日: 2014-10-18, 公開日: 2015-06-24, 最終更新日: 2024-03-20)

主引用文献

Liu, W.,Chen, Y.,Jiang, X.,Xia, M.,Yang, Y.,Tan, M.,Li, X.,Rao, Z.
A Unique Human Norovirus Lineage with a Distinct HBGA Binding Interface.
Plos Pathog., 11:e1005025-e1005025, 2015

PubMed Abstract: Norovirus (NoV) causes epidemic acute gastroenteritis in humans, whereby histo-blood group antigens (HBGAs) play an important role in host susceptibility. Each of the two major genogroups (GI and GII) of human NoVs recognizes a unique set of HBGAs through a distinct binding interface that is conserved within a genogroup, indicating a distinct evolutionary path for each genogroup. Here, we characterize a Lewis a (Lea) antigen binding strain (OIF virus) in the GII.21 genotype that does not share the conserved GII binding interface, revealing a new evolution lineage with a distinct HBGA binding interface. Sequence alignment showed that the major residues contributing to the new HBGA binding interface are conserved among most members of the GII.21, as well as a closely related GII.13 genotype. In addition, we found that glycerol inhibits OIF binding to HBGAs, potentially allowing production of cheap antivirals against human NoVs. Taken together, our results reveal a new evolutionary lineage of NoVs selected by HBGAs, a finding that is important for understanding the diversity and widespread nature of NoVs.

PubMed: 26147716
DOI: 10.1371/journal.ppat.1005025

実験手法

X-RAY DIFFRACTION (1.999 Å)