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3CL5

Structure of coronavirus hemagglutinin-esterase in complex with 4,9-O-diacetyl sialic acid

Functional Information from GO Data
ChainGOidnamespacecontents
A0001681molecular_functionsialate O-acetylesterase activity
A0002683biological_processnegative regulation of immune system process
A0005102molecular_functionsignaling receptor binding
A0016020cellular_componentmembrane
A0016787molecular_functionhydrolase activity
A0016788molecular_functionhydrolase activity, acting on ester bonds
A0019031cellular_componentviral envelope
A0019064biological_processfusion of virus membrane with host plasma membrane
A0020002cellular_componenthost cell plasma membrane
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
A0044423cellular_componentvirion component
A0046789molecular_functionhost cell surface receptor binding
A0046813biological_processreceptor-mediated virion attachment to host cell
A0055036cellular_componentvirion membrane
A0106330molecular_functionsialate 9-O-acetylesterase activity
A0106331molecular_functionsialate 4-O-acetylesterase activity
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues138
DetailsRegion: {"description":"Receptor binding","evidences":[{"source":"HAMAP-Rule","id":"MF_04207","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Nucleophile","evidences":[{"source":"HAMAP-Rule","id":"MF_04207","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"18550812","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"HAMAP-Rule","id":"MF_04207","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues6
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; by host","evidences":[{"source":"HAMAP-Rule","id":"MF_04207","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"18550812","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine; by host","evidences":[{"source":"HAMAP-Rule","id":"MF_04207","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

243083

PDB entries from 2025-10-15

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