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2Q6F

Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3

Functional Information from GO Data
ChainGOidnamespacecontents
A0008233molecular_functionpeptidase activity
A0019082biological_processviral protein processing
B0008233molecular_functionpeptidase activity
B0019082biological_processviral protein processing
Functional Information from PDB Data
site_idAC1
Number of Residues16
DetailsBINDING SITE FOR CHAIN D
ChainResidue
AHIS41
AHIS170
AGLU186
AGLU187
AVAL188
AALA189
ASER256
AGLY260
APHE138
AALA140
AGLY141
ACYS143
AHIS161
AHIS162
ALEU163
AGLU164

site_idAC2
Number of Residues15
DetailsBINDING SITE FOR CHAIN C
ChainResidue
BASN25
BASN26
BLEU27
BHIS41
BPHE138
BGLY141
BALA142
BCYS143
BHIS161
BHIS162
BLEU163
BGLU164
BHIS170
BGLU187
BVAL188

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues4
DetailsActive site: {"description":"For 3CL-PRO activity","evidences":[{"source":"PROSITE-ProRule","id":"PRU00772","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 2bx4
ChainResidueDetails
ACYS143
AHIS41

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 2bx4
ChainResidueDetails
BCYS143
BHIS41

243083

PDB entries from 2025-10-15

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