5F1C | pdb_00005f1c

Crystal structure of an invertebrate P2X receptor from the Gulf Coast tick in the presence of ATP and Zn2+ ion at 2.9 Angstroms

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: OPM
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)
B	SCOP2B Superfamily	P2X receptor-like	8053201	3002165	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	P2X receptor-like	8053201	3002165	SCOP2B (2022-06-29)
A	SCOP2 Family	P2X receptor	8048351	4006064	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	P2X receptor-like	8053201	3002165	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	HABP4_PAI-RBP1	e5f1cB1	A: a/b three-layered sandwiches	X: HTH	H: Baseplate wedge protein gp6 helical domain	T: Baseplate wedge protein gp6 helical domain	F: HABP4_PAI-RBP1	ECOD (v294.1)
C	HABP4_PAI-RBP1	e5f1cC1	A: a/b three-layered sandwiches	X: HTH	H: Baseplate wedge protein gp6 helical domain	T: Baseplate wedge protein gp6 helical domain	F: HABP4_PAI-RBP1	ECOD (v294.1)
A	HABP4_PAI-RBP1	e5f1cA1	A: a/b three-layered sandwiches	X: HTH	H: Baseplate wedge protein gp6 helical domain	T: Baseplate wedge protein gp6 helical domain	F: HABP4_PAI-RBP1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.940	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	atp-gated p2x4 ion channel	CATH (4.3.0)
B	2.60.490.10	Mainly Beta	Sandwich	atp-gated p2x4 ion channel fold	atp-gated p2x4 ion channel domain	CATH (4.3.0)
C	1.10.287.940	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	atp-gated p2x4 ion channel	CATH (4.3.0)
C	2.60.490.10	Mainly Beta	Sandwich	atp-gated p2x4 ion channel fold	atp-gated p2x4 ion channel domain	CATH (4.3.0)
A	1.10.287.940	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	atp-gated p2x4 ion channel	CATH (4.3.0)
A	2.60.490.10	Mainly Beta	Sandwich	atp-gated p2x4 ion channel fold	atp-gated p2x4 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	Putative uncharacterized protein	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity purinergic nucleotide receptor activity nucleotide receptor activity monoatomic cation transmembrane transporter activity extracellularly ATP-gated monoatomic cation channel activity gated channel activity monoatomic ion channel activity ATP-gated ion channel activity excitatory extracellular ligand-gated monoatomic ion channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity cation binding metal ion binding	transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport response to stimulus response to chemical transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport response to stimulus response to chemical response to organophosphorus response to oxygen-containing compound response to nitrogen compound response to ATP response to purine-containing compound	cellular anatomical structure endomembrane system cell periphery plasma membrane membrane postsynapse synapse cell junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR001429	P2X purinoreceptor	Family
A, B, C	IPR059116	ATP P2X receptor-like	Family
A, B, C	IPR027309	P2X purinoreceptor extracellular domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM	Transmembrane	Alpha-helical polytopic	ENaC/P2X	ATP-gated cation channel

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	ATP-gated P2X₂ ion channel in the presence of ATP and Zn²⁺

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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