Author
Listed:
- Duanfang Cao
(Chinese Academy of Sciences (CAS))
- Bingting Ma
(Tsinghua University
SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine
Tsinghua-Peking Center for Life Sciences)
- Ziyi Cao
(Chinese Academy of Sciences (CAS)
University of Chinese Academy of Sciences)
- Xiaoyu Xu
(Tsinghua University
SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine
Tsinghua-Peking Center for Life Sciences)
- Xinzheng Zhang
(Chinese Academy of Sciences (CAS)
University of Chinese Academy of Sciences)
- Ye Xiang
(Tsinghua University
SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine
Tsinghua-Peking Center for Life Sciences)
Abstract
Eastern Equine Encephalitis virus (EEEV) is an alphavirus that can cause severe diseases in infected humans. The very low-density lipoprotein receptor (VLDLR) was recently identified as a receptor of EEEV. Herein, we performed cryo-electron microscopy structural and biochemistry studies on the specific interactions between EEEV and VLDLR. Our results show that VLDLR binds EEEV at three different sites A, B and C through its membrane-distal LDLR class A (LA) repeats. Site A is located in the cleft in between the E1-E2 heterodimers. Site B is located near the connecting β ribbon of E2 and is in proximity to site A, while site C is on the domain B of E2. The binding of VLDLR LAs to EEEV is in complex modes, including the LA1-2 and LA3-5 mediated two major modes. Disruption of the LA1-2 mediated binding significantly affect the cell attachment of EEEV. However, the mutation W132G of VLDLR impairs the binding of LA3, drives the switch of the binding modes, and significantly enhances the attachment of EEEV to the cell. The W132G variant of VLDLR could be identified in human genome and SNP sequences, implying that people with similar mutations in VLDLR may be highly susceptible to EEEV infection.
Suggested Citation
Duanfang Cao & Bingting Ma & Ziyi Cao & Xiaoyu Xu & Xinzheng Zhang & Ye Xiang, 2024.
"The receptor VLDLR binds Eastern Equine Encephalitis virus through multiple distinct modes,"
Nature Communications, Nature, vol. 15(1), pages 1-15, December.
Handle:
RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51293-x
DOI: 10.1038/s41467-024-51293-x
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