Structure of PDB 2y57 Chain C

Receptor sequence

>2y57C (length=205) Species: 6500 (Aplysia californica)

QANLMRLKSDLFNRSPMYPGPTKDDPLTVTLGFTLQDIVKVDSSTNEVDL
VYYEQQRWKLNSLMWDPNEYGNITDFRTSAADIWTPDITAYSSTRPVQVL
SPQIAVVTHDGSVMFIPAQRLSFMCDPTGVDSEEGVTCAVKFGSWVYSGF
EIDLKTDTDQVDLSSYYASSKYEILSATQTRQVQHYSCCPEPYIDVNLVV
KFRER

3D structure

• PDB: 2y57 Fragment Growing Induces Conformational Changes in Acetylcholine-Binding Protein: A Structural and Thermodynamic Analysis.
• Chain: C
• Resolution: 3.3 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	V37	C	Y53 Q55 M114 I116	Y53 Q55 M114 I116	BindingDB: Ki=31.62nM
BS02	V37	C	Y91 K141 G143 S144 W145 Y186 C188 C189 Y193	Y91 K141 G143 S144 W145 Y186 C188 C189 Y193	BindingDB: Ki=31.62nM

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

External links

• PDB: RCSB:2y57, PDBe:2y57, PDBj:2y57
• PDBsum: 2y57
• PubMed: 21322593
• UniProt: Q8WSF8