Structure of PDB 7gk3 Chain A Binding Site BS01

Receptor Information
>7gk3 Chain A (length=302) Species: 2697049 (Severe acute respiratory syndrome coronavirus 2) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDVVYCPRHVICTSEDML
NPNYEDLLIRKSNHNFLVQAGNVQLRVIGHSMQNCVLKLKVDTANPKTPK
YKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNFTIKGSFLNGSCGSVGF
NIDYDCVSFCYMHHMELPTGVHAGTDLEGNFYGPFVDRQTAQAAGTDTTI
TVNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNYEPLTQDHVDIL
GPLSAQTGIAVLDMCASLKELLQNGMNGRTILGSALLEDEFTPFDVVRQC
SG
Ligand information
Ligand IDQT3
InChIInChI=1S/C20H18ClN3O/c1-24-9-8-13-6-7-15(21)10-17(13)19(24)20(25)23-18-12-22-11-14-4-2-3-5-16(14)18/h2-7,10-12,19H,8-9H2,1H3,(H,23,25)/t19-/m1/s1
InChIKeyNHDKKXCWRNZVNJ-LJQANCHMSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7CN1CCc2ccc(cc2[C@@H]1C(=O)Nc3cncc4c3cccc4)Cl
ACDLabs 12.01Clc1ccc2CCN(C)C(c2c1)C(=O)Nc1cncc2ccccc21
CACTVS 3.385CN1CCc2ccc(Cl)cc2[CH]1C(=O)Nc3cncc4ccccc34
CACTVS 3.385CN1CCc2ccc(Cl)cc2[C@@H]1C(=O)Nc3cncc4ccccc34
OpenEye OEToolkits 2.0.7CN1CCc2ccc(cc2C1C(=O)Nc3cncc4c3cccc4)Cl
FormulaC20 H18 Cl N3 O
Name(1R)-7-chloro-N-(isoquinolin-4-yl)-2-methyl-1,2,3,4-tetrahydroisoquinoline-1-carboxamide
ChEMBL
DrugBank
ZINC
PDB chain7gk3 Chain A Residue 408 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB7gk3 Open science discovery of potent noncovalent SARS-CoV-2 main protease inhibitors
Resolution2.19 Å
Binding residue
(original residue number in PDB)		F140 L141 N142 C145 H163 M165 E166 D187 Q189
Binding residue
(residue number reindexed from 1)		F140 L141 N142 C145 H163 M165 E166 D187 Q189
Annotation score1
Enzymatic activity
Enzyme Commision number 2.1.1.56: mRNA (guanine-N(7))-methyltransferase.
2.1.1.57: methyltransferase cap1.
2.7.7.48: RNA-directed RNA polymerase.
2.7.7.50: mRNA guanylyltransferase.
3.1.13.-
3.4.19.12: ubiquitinyl hydrolase 1.
3.4.22.-
3.4.22.69: SARS coronavirus main proteinase.
3.6.4.12: DNA helicase.
3.6.4.13: RNA helicase.
4.6.1.-
Gene Ontology
Molecular Function
GO:0008233 peptidase activity
Biological Process
GO:0019082 viral protein processing

View graph for
Molecular Function
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Biological Process
External links
PDB RCSB:7gk3, PDBe:7gk3, PDBj:7gk3
PDBsum7gk3
PubMed37943932
UniProtP0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)

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