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2HOB

Crystal structure of SARS-CoV main protease with authentic N and C-termini in complex with a Michael acceptor N3

Functional Information from GO Data
ChainGOidnamespacecontents
A0008233molecular_functionpeptidase activity
A0019082biological_processviral protein processing
Functional Information from PDB Data
site_idAC1
Number of Residues22
DetailsBINDING SITE FOR CHAIN B OF N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~- ((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3- YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
ChainResidue
ATHR25
AHIS163
AHIS164
AMET165
AGLU166
APRO168
AHIS172
AGLN189
ATHR190
AALA191
AGLN192
ATHR26
AHOH568
AHOH662
BHOH101
AHIS41
AMET49
APHE140
AASN142
AGLY143
ASER144
ACYS145

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 Residues2
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
ACYS145
AHIS41

site_idMCSA1
Number of Residues3
DetailsM-CSA 830
ChainResidueDetails
AHIS41proton acceptor, proton donor
AGLY143electrostatic stabiliser
ACYS145electrostatic stabiliser

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PDB entries from 2025-12-03

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