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4YO9

HKU4 3CLpro unbound structure

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 Residues4
Detailsbinding site for residue ZN A 401
ChainResidue
ALEU27
AHIS41
ACYS148
AGLN306

site_idAC2
Number of Residues2
Detailsbinding site for residue ACT A 402
ChainResidue
AASP200
ATYR202

site_idAC3
Number of Residues5
Detailsbinding site for residue ACT A 403
ChainResidue
BMET298
BGLN299
ATYR121
ASER142
BMET6

site_idAC4
Number of Residues1
Detailsbinding site for residue IPA A 404
ChainResidue
ATHR126

site_idAC5
Number of Residues4
Detailsbinding site for residue SIN A 405
ChainResidue
AASN15
BGLY11
BGLU14
BASN15

site_idAC6
Number of Residues4
Detailsbinding site for residue MPD A 406
ChainResidue
AARG227
ASER261
AGLU263
BVAL159

site_idAC7
Number of Residues4
Detailsbinding site for residue ACT B 401
ChainResidue
BARG134
BASP200
BLYS201
BTYR202

site_idAC8
Number of Residues3
Detailsbinding site for residue ACT B 402
ChainResidue
BASN297
BMET298
BMET301

site_idAC9
Number of Residues2
Detailsbinding site for residue IPA B 403
ChainResidue
BTHR108
BASP181

site_idAD1
Number of Residues5
Detailsbinding site for residue IPA B 404
ChainResidue
BMET6
BSER114
BPHE115
BSER116
BTHR130

site_idAD2
Number of Residues3
Detailsbinding site for residue FMT B 405
ChainResidue
BTHR62
BASN63
BHIS64

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

246704

PDB entries from 2025-12-24

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