Structural Insights into Calicivirus Attachment and Uncoating
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The Caliciviridae family comprises positive-sense RNA viruses of medical and veterinary significance. In humans, caliciviruses are a major cause of acute gastroenteritis, while in animals respiratory illness, conjunctivitis, stomatitis, and hemorrhagic disease are documented. Investigation of virus-host interactions is limited by a lack of culture systems for many viruses in this family. Feline calicivirus (FCV), a member of the Vesivirus genus, provides a tractable model, since it may be propagated in cell culture. Feline junctional adhesion molecule 1 (fJAM-1) was recently identified as a functional receptor for FCV. We have analyzed the structure of this virus-receptor complex by cryo-electron microscopy and three-dimensional image reconstruction, combined with fitting of homology modeled high-resolution coordinates. We show that domain 1 of fJAM-1 binds to the outer face of the P2 domain of the FCV capsid protein VP1, inducing conformational changes in the viral capsid. This study provides the first structural view of a native calicivirus-protein receptor complex and insights into the mechanisms of virus attachment and uncoating.
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The outer face of the FCV capsomere incorporates the receptor-binding site.
“The outer face of the FCV capsomere incorporates the receptor-binding site.”
From Vesivirus 2117 capsids more closely resemble sapovirus and lagovirus particles than other known vesivirus structures (2017) · cites this paper as [13]
Two molecules of feline junctional adhesion molecule-A bind to the flat surface of the FCV capsomere in a head-to-tail arrangement.
“Two molecules of feline junctional adhesion molecule-A bind to the flat surface in a head-to-tail arrangement [13, 32].”
From Vesivirus 2117 capsids more closely resemble sapovirus and lagovirus particles than other known vesivirus structures (2017) · cites this paper as [13]
The distal P domain of vesivirus 2117 is morphologically distinct from that seen in other known vesivirus structures.
“showing that the distal P domain of vesivirus 2117 is morphologically distinct from that seen in other known vesivirus structures.”
From Vesivirus 2117 capsids more closely resemble sapovirus and lagovirus particles than other known vesivirus structures (2017) · cites this paper as [13]
The Results describe feline calicivirus (FCV) and say its structure is strongly reminiscent of another vesivirus, SMSV; they do not compare vesivirus 2117 with other structures. Searches for “2117” and for a distinct distal P-domain morphology found no passage addressing the claim. (LLM, conf=0.75)
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Conley, M., Emmott, E., Orton, R., Taylor, D., Carneiro, D. G., Murata, K., Goodfellow, I. G., Hansman, G. S., & Bhella, D. (2017) · Journal of General Virology · doi:10.1099/jgv.0.000658 · Cited by 8 · see citing works
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- Authors
- Bhella, D., Gatherer, D., Chaudhry, Y., Pink, R., & Goodfellow, I. G.
- Affiliations
- University of Glasgow (GB)
- Imperial College London (GB)
- Corresponding author
- Bhella, David
- Venue
- Journal of Virology
- Publisher
- American Society for Microbiology
- Published
- 2008-08-15
- Volume
- 82
- Issue
- 16
- Pages
- 8051-8058
- ISSN
- 0022-538X (ISSN-L)
- 1098-5514
- PMC
- PMC2519574
- OpenAlex
- W1989465852
- Cited by
- 65
- References
- 0
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- FWCI
- 3.44
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Journal of Virology (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
- Lancaster EPrints (Lancaster University) (submittedVersion)
- Funders
- Wellcome Trust (081624)
- Topics
- Health Sciences › Medicine › Infectious Diseases › Viral gastroenteritis research and epidemiology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Structural Biology › Advanced Electron Microscopy Techniques and Applications
- Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
- Keywords
- feline calicivirus, viral uncoating, VP1 capsid protein, P2 domain, capsid conformational change, Vesivirus, receptor binding domain, viral entry mechanism
- MeSH terms
- Animals, Epitopes, Caliciviridae, Capsid, Cats, Cell Adhesion, Image Processing, Computer-Assisted, Kidney, Microscopy, Electron, Molecular Conformation, Polysaccharides, Protein Binding, Protein Structure, Tertiary, Calicivirus, Feline, Cryoelectron Microscopy
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