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4IMQ

Structural Basis of Substrate Specificity and Protease Inhibition in Norwalk Virus

Functional Information from GO Data
ChainGOidnamespacecontents
A0004197molecular_functioncysteine-type endopeptidase activity
A0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SCN A 201
ChainResidue
APRO2
ATHR4
ALEU5
AARG8
AHOH404

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE NA A 202
ChainResidue
ALEU121
ATHR134
AGLY164
AHOH503

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE SCN A 203
ChainResidue
AHIS50
AGLN172
AALA173
AHOH390

site_idAC4
Number of Residues12
DetailsBINDING SITE FOR CHAIN B OF PEPTIDE INHIBITOR
ChainResidue
AHIS30
AILE109
AGLN110
ATHR134
AILE135
APRO136
ACYS139
AHIS157
AALA158
AALA159
AALA160
AGLU181

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues3
DetailsActive site: {"description":"For 3CLpro activity","evidences":[{"source":"PROSITE-ProRule","id":"PRU00870","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"16641296","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23365454","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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