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2YNB

Crystal structure of the main protease of coronavirus HKU4 in complex with a Michael acceptor SG85

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 Residues20
DetailsBINDING SITE FOR RESIDUE G85 B 501
ChainResidue
BMET25
BHIS166
BGLN167
BMET168
BGLU169
BLEU170
BHIS175
BASP190
BLYS191
BGLN192
BTHR193
BTHR26
BGLN195
BHIS41
BLEU49
BTYR54
BPHE143
BGLY146
BSER147
BCYS148

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE NI A 1307
ChainResidue
AHIS41
ACYS148
AGLN306
AHOH2278

site_idAC3
Number of Residues2
DetailsBINDING SITE FOR RESIDUE NI A 1308
ChainResidue
ACYS145
AHIS256

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues305
DetailsDomain: {"description":"Peptidase C30","evidences":[{"source":"PROSITE-ProRule","id":"PRU00772","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsActive site: {"description":"For 3CL-PRO activity","evidences":[{"source":"PROSITE-ProRule","id":"PRU00772","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

239492

PDB entries from 2025-07-30

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