Annotations: 3S3X

Structure of chicken acid-sensing ion channel 1 AT 3.0 A resolution in complex with psalmotoxin

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
Membrane Protein Annotation: mpstruc

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)
C	SCOP2B Superfamily	Proton-activated chloride channel, extracellular domain-like	8106423	3002853	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Proton-activated chloride channel, extracellular domain-like	8106423	3002853	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	omega toxin-like	8036232	3000255	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	omega toxin-like	8036232	3000255	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	omega toxin-like	8036232	3000255	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	Acyl-CoA_dh_1	e3s3xA1	A: alpha arrays	X: omega toxin-like	H: HTH	T: Three-helical HTH	F: Acyl-CoA_dh_1	ECOD (v295)
C	Acyl-CoA_dh_1	e3s3xC1	A: alpha arrays	X: omega toxin-like	H: HTH	T: Three-helical HTH	F: Acyl-CoA_dh_1	ECOD (v295)
B	Acyl-CoA_dh_1	e3s3xB1	A: alpha arrays	X: omega toxin-like	H: HTH	T: Three-helical HTH	F: Acyl-CoA_dh_1	ECOD (v295)
F	ABC_tran	e3s3xF1	A: alpha arrays	X: beta-Grasp	H: HTH	T: winged helix domain	F: ABC_tran	ECOD (v295)
E	ABC_tran	e3s3xE1	A: alpha arrays	X: beta-Grasp	H: HTH	T: winged helix domain	F: ABC_tran	ECOD (v295)
D	Pribosyltran_N	e3s3xD1	A: alpha arrays	X: P-loop domains-like	H: RIFT-related	T: FMN-binding split barrel 2	F: Pribosyltran_N	ECOD (v295)

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)
C	1.10.287.770	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	YojJ-like	CATH (4.3.0)
C	2.60.470.10	Mainly Beta	Sandwich	Acid-sensing ion channels like fold	Acid-sensing ion channels like domains	CATH (4.3.0)
C	1.10.3590.10	Mainly Alpha	Orthogonal Bundle	acid-sensing ion channel 1 fold	acid-sensing ion channel 1 domain	CATH (4.3.0)
C	1.10.287.820	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Acid-sensing ion channel domain	CATH (4.3.0)
B	1.10.287.770	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	YojJ-like	CATH (4.3.0)
B	2.60.470.10	Mainly Beta	Sandwich	Acid-sensing ion channels like fold	Acid-sensing ion channels like domains	CATH (4.3.0)
B	1.10.3590.10	Mainly Alpha	Orthogonal Bundle	acid-sensing ion channel 1 fold	acid-sensing ion channel 1 domain	CATH (4.3.0)
B	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, B, C	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	cellular response to stimulus response to stimulus response to pH cellular response to pH response to abiotic stimulus cellular process cellular response to abiotic stimulus cellular response to environmental stimulus transport monoatomic ion transmembrane transport sodium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport cellular response to stimulus response to stimulus response to pH cellular response to pH response to abiotic stimulus cellular process cellular response to abiotic stimulus cellular response to environmental stimulus transport monoatomic ion transmembrane transport sodium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization 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 somatodendritic compartment cell projection dendrite dendritic tree cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection glutamatergic synapse
D, E, F	Psalmotoxin-1	channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity toxin activity	-	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	ASIC1 Acid-Sensing Ion Channel in complex with psalmotoxin 1 (PcTx1)

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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.

3S3X | pdb_00003s3x