Structure of PDB 7mpb Chain B Binding Site BS01

Receptor Information
>7mpb Chain B (length=310) 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
SGVTFQGPHH
Ligand information
Ligand IDASC
InChIInChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1
InChIKeyCIWBSHSKHKDKBQ-JLAZNSOCSA-N
SMILES
SoftwareSMILES
CACTVS 3.341OC[CH](O)[CH]1OC(=O)C(=C1O)O
OpenEye OEToolkits 1.5.0C(C(C1C(=C(C(=O)O1)O)O)O)O
OpenEye OEToolkits 1.5.0C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O
CACTVS 3.341OC[C@H](O)[C@H]1OC(=O)C(=C1O)O
ACDLabs 10.04O=C1OC(C(O)=C1O)C(O)CO
FormulaC6 H8 O6
NameASCORBIC ACID;
Vitamin C
ChEMBLCHEMBL196
DrugBankDB00126
ZINCZINC000100006770
PDB chain7mpb Chain B Residue 401 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB7mpb Vitamin C inhibits SARS coronavirus-2 main protease essential for viral replication
Resolution2.3 Å
Binding residue
(original residue number in PDB)		F140 L141 N142 G143 C145 H163 E166
Binding residue
(residue number reindexed from 1)		F140 L141 N142 G143 C145 H163 E166
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
View graph for
Biological Process
External links
PDB RCSB:7mpb, PDBe:7mpb, PDBj:7mpb
PDBsum7mpb
PubMed
UniProtP0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)

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