Crystal structure of Mouse Hepatitis virus strain S Hemagglutinin- esterase in complex with 4-O-acetylated sialic acidCrystal structure of Mouse Hepatitis virus strain S Hemagglutinin- esterase in complex with 4-O-acetylated sialic acid

Structural highlights

4c7w is a 2 chain structure with sequence from Murine hepatitis virus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, , , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[HEMA_CVMS] Structural protein that makes short spikes at the surface of the virus. Contains receptor binding and receptor-destroying activities. Mediates de-O-acetylation of N-acetyl-4-O-acetylneuraminic acid, which is probably the receptor determinant recognized by the virus on the surface of erythrocytes and susceptible cells. This receptor-destroying activity is important for virus release as it probably helps preventing self-aggregation and ensures the efficient spread of the progeny virus from cell to cell. May serve as a secondary viral attachment protein for initiating infection, the spike protein being the major one. May become a target for both the humoral and the cellular branches of the immune system.[HAMAP-Rule:MF_04207][1]

See Also

References

  1. Langereis MA, Zeng Q, Heesters BA, Huizinga EG, de Groot RJ. The murine coronavirus hemagglutinin-esterase receptor-binding site: a major shift in ligand specificity through modest changes in architecture. PLoS Pathog. 2012 Jan;8(1):e1002492. doi: 10.1371/journal.ppat.1002492. Epub 2012, Jan 26. PMID:22291594 doi:http://dx.doi.org/10.1371/journal.ppat.1002492

4c7w, resolution 2.50Å

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OCA