3IJ4 | pdb_00003ij4

Cesium sites in the crystal structure of a functional acid sensing ion channel in the desensitized state

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Proton-activated chloride channel, extracellular domain-like	8106423	3002853	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e3ij4A1	A: HTH	X: HTH	H: winged helix domain	T: Glycogen_syn	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.770	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	YojJ-like	CATH (4.3.0)
A	2.60.470.10	Mainly Beta	Sandwich	Acid-sensing ion channels like fold	Acid-sensing ion channels like domains	CATH (4.3.0)
A	1.10.3590.10	Mainly Alpha	Orthogonal Bundle	acid-sensing ion channel 1 fold	acid-sensing ion channel 1 domain	CATH (4.3.0)
A	1.10.287.820	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Acid-sensing ion channel domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Amiloride-sensitive cation channel 2, neuronal	monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity ligand-gated sodium channel activity sodium channel activity sodium ion transmembrane transporter activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity ligand-gated sodium channel activity sodium channel activity sodium ion transmembrane transporter activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity pH-gated monoatomic ion channel activity identical protein binding protein binding binding	trans-synaptic signaling regulation of biological process cellular localization neurotransmitter secretion transport signaling secretion biological regulation cell-cell signaling export from cell neurotransmitter transport establishment of localization cell communication chemical synaptic transmission localization trans-synaptic signaling regulation of biological process cellular localization neurotransmitter secretion transport signaling secretion biological regulation cell-cell signaling export from cell neurotransmitter transport establishment of localization cell communication chemical synaptic transmission localization signal release from synapse synaptic signaling secretion by cell signal release anterograde trans-synaptic signaling establishment of localization in cell cellular process cellular response to stimulus response to stimulus response to pH cellular response to pH response to abiotic stimulus cellular response to abiotic stimulus cellular response to environmental stimulus monoatomic ion transmembrane transport sodium ion transmembrane transport metal ion transport monoatomic cation transmembrane transport transmembrane transport monoatomic ion transport monoatomic cation transport sodium ion transport	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane presynapse somatodendritic compartment cell projection dendrite cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane presynapse somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection glutamatergic synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001873	Epithelial sodium channel	Family
A	IPR020903	Epithelial sodium channel, conserved site	Conserved Site
A	IPR004724	Epithelial sodium channel, chordates	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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