Structure of PDB 2xys Chain B Binding Site BS01

Receptor Information
>2xys Chain B (length=205) Species: 6500 (Aplysia californica) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QANLMRLKSDLFNRSPMYPGPTKDDPLTVTLGFTLQDIVKVDSSTNEVDL
VYYEQQRWKLNSLMWDPNEYGNITDFRTSAADIWTPDITAYSSTRPVQVL
SPQIAVVTHDGSVMFIPAQRLSFMCDPTGVDSEEGVTCAVKFGSWVYSGF
EIDLKTDTDQVDLSSYYASSKYEILSATQTRQVQHYSCCPEPYIDVNLVV
KFRER
Ligand information
Ligand IDSY9
InChIInChI=1S/C21H22N2O2/c24-18-10-16-19-13-9-17-21(6-7-22(17)11-12(13)5-8-25-16)14-3-1-2-4-15(14)23(18)20(19)21/h1-5,13,16-17,19-20H,6-11H2/t13-,16-,17-,19-,20-,21+/m0/s1
InChIKeyQMGVPVSNSZLJIA-FVWCLLPLSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.6.1c1ccc2c(c1)C34CCN5C3CC6C7C4N2C(=O)CC7OCC=C6C5
OpenEye OEToolkits 1.6.1c1ccc2c(c1)[C@]34CC[N@@]5[C@H]3C[C@@H]6[C@@H]7[C@@H]4N2C(=O)C[C@@H]7OCC=C6C5
CACTVS 3.352O=C1C[C@@H]2OCC=C3C[N@]4CC[C@@]56[C@@H]4C[C@@H]3[C@@H]2[C@@H]5N1c7ccccc67
CACTVS 3.352O=C1C[CH]2OCC=C3C[N]4CC[C]56[CH]4C[CH]3[CH]2[CH]5N1c7ccccc67
FormulaC21 H22 N2 O2
NameSTRYCHNINE
ChEMBLCHEMBL227934
DrugBankDB15954
ZINCZINC000000119434
PDB chain2xys Chain A Residue 1206 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
[Spin on] [Spin off] [Reset]
[High quality] [Low quality]
[White background] [Black background]
PDB2xys A Structural and Mutagenic Blueprint for Molecular Recognition of Strychnine and D-Tubocurarine by Different Cys-Loop Receptors.
Resolution1.909 Å
Binding residue
(original residue number in PDB)		Y53 Q55 I116
Binding residue
(residue number reindexed from 1)		Y53 Q55 I116
Annotation score1
Binding affinityMOAD: Ki=38nM
PDBbind-CN: -logKd/Ki=7.42,Ki=38nM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0004888 transmembrane signaling receptor activity
GO:0005216 monoatomic ion channel activity
GO:0005230 extracellular ligand-gated monoatomic ion channel activity
GO:0005231 excitatory extracellular ligand-gated monoatomic ion channel activity
GO:0005515 protein binding
GO:0042802 identical protein binding
GO:0046872 metal ion binding
GO:1904315 transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential
Biological Process
GO:0006811 monoatomic ion transport
GO:0007165 signal transduction
GO:0007268 chemical synaptic transmission
GO:0034220 monoatomic ion transmembrane transport
GO:0042391 regulation of membrane potential
GO:0050877 nervous system process
GO:0060078 regulation of postsynaptic membrane potential
GO:0060079 excitatory postsynaptic potential
Cellular Component
GO:0016020 membrane
GO:0043005 neuron projection
GO:0045202 synapse
GO:0098794 postsynapse

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:2xys, PDBe:2xys, PDBj:2xys
PDBsum2xys
PubMed21468359
UniProtQ8WSF8

[Back to BioLiP]