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6Y84

SARS-CoV-2 main protease with unliganded active site (2019-nCoV, coronavirus disease 2019, COVID-19)

Functional Information from GO Data
ChainGOidnamespacecontents
A0008233molecular_functionpeptidase activity
A0019082biological_processviral protein processing
Functional Information from PDB Data
site_idAC1
Number of Residues8
Detailsbinding site for residue DMS A 401
ChainResidue
AGLN74
ALEU75
AARG76
APHE223
ATHR224
AASP263
AHOH570
AHOH579

site_idAC2
Number of Residues2
Detailsbinding site for residue DMS A 402
ChainResidue
AASN65
AHIS64

site_idAC3
Number of Residues6
Detailsbinding site for residue DMS A 403
ChainResidue
AMET6
APHE8
ASER123
AGLN127
AASP295
AARG298

site_idAC4
Number of Residues5
Detailsbinding site for residue DMS A 404
ChainResidue
AGLY15
AMET17
ALYS97
AHOH620
AHOH654

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"For 3CL-PRO activity","evidences":[{"source":"PROSITE-ProRule","id":"PRU00772","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"32198291","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Nucleophile; for 3CL-PRO activity","evidences":[{"source":"PROSITE-ProRule","id":"PRU00772","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"32198291","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsCross-link: {"description":"Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)","evidences":[{"source":"PubMed","id":"39223933","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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