Structure of PDB 3bti Chain A Binding Site BS01

Receptor Information
>3bti Chain A (length=186) Species: 158878 (Staphylococcus aureus subsp. aureus Mu50) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
NLKDKILGVAKELFIKNGYNATTTGEIVKLSESSKGNLYYHFKTKENLFL
EILNIEQSKWQEQWKKEQIKAKTNREKFYLYNELSLTTEYYYPLQNAIIE
FYTEYYKTNSINEKMNKLENKYIDAYHVIFKEGNLNGEWSINDVNAVSKI
AANAVNGIVTFTHEQNINERIKLMNKFSQIFLNGLS
Ligand information
Ligand IDBER
InChIInChI=1S/C20H18NO4/c1-22-17-4-3-12-7-16-14-9-19-18(24-11-25-19)8-13(14)5-6-21(16)10-15(12)20(17)23-2/h3-4,7-10H,5-6,11H2,1-2H3/q+1
InChIKeyYBHILYKTIRIUTE-UHFFFAOYSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0COc1ccc2cc-3[n+](cc2c1OC)CCc4c3cc5c(c4)OCO5
ACDLabs 10.04O1c2c(OC1)cc5c(c2)c4cc3ccc(OC)c(OC)c3c[n+]4CC5
CACTVS 3.341COc1ccc2cc3c4cc5OCOc5cc4CC[n+]3cc2c1OC
FormulaC20 H18 N O4
NameBERBERINE
ChEMBLCHEMBL295124
DrugBankDB04115
ZINCZINC000003779067
PDB chain3bti Chain A Residue 802 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB3bti QacR-cation recognition is mediated by a redundancy of residues capable of charge neutralization
Resolution2.85 Å
Binding residue
(original residue number in PDB)		E57 W61 Q64 S86 T89 Y93 E120 Y123
Binding residue
(residue number reindexed from 1)		E56 W60 Q63 S85 T88 Y92 E119 Y122
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=6.14,Kd=0.72uM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003700 DNA-binding transcription factor activity
Biological Process
GO:0045892 negative regulation of DNA-templated transcription

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Molecular Function
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Biological Process
External links
PDB RCSB:3bti, PDBe:3bti, PDBj:3bti
PDBsum3bti
PubMed18616285
UniProtP0A0N3|QACR_STAAM HTH-type transcriptional regulator QacR (Gene Name=qacR)

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