21FG | pdb_000021fg

Cryo-EM structure of the human P2X3 receptor in the ATP- and sivopixant-bound closed state

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	P2X receptor-like	8053195	3002165	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	P2X receptor-like	8053195	3002165	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	P2X receptor-like	8053195	3002165	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	Pkinase	e21fgA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Pkinase	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00864	ATP P2X receptor (P2X_receptor)	ATP P2X receptor	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	P2X purinoceptor 3	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	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 trans-synaptic signaling regulation of biological process 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 trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus positive regulation of biological process regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette regulation of calcium-mediated signaling positive regulation of calcium-mediated signaling signal transduction positive regulation of cellular process positive regulation of intracellular signal transduction regulation of response to stimulus calcium-mediated signaling positive regulation of signaling regulation of localization regulation of calcium ion transport positive regulation of cation transmembrane transport positive regulation of calcium ion transport cellular localization regulation of calcium ion transport into cytosol regulation of monoatomic ion transmembrane transport regulation of calcium ion transmembrane transport positive regulation of monoatomic ion transport positive regulation of calcium ion transmembrane transport positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport regulation of biological quality regulation of metal ion transport calcium ion transmembrane import into cytosol regulation of transport regulation of monoatomic ion transport positive regulation of cytosolic calcium ion concentration positive regulation of calcium ion transport into cytosol regulation of transmembrane transport positive regulation of transport regulation of cellular localization regulation of monoatomic cation transmembrane transport calcium ion transport into cytosol cellular response to nitrogen compound cellular response to ATP response to organophosphorus response to oxygen-containing compound response to nitrogen compound response to ATP response to purine-containing compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical protein-containing complex organization protein trimerization cellular component organization cellular component biogenesis cellular component assembly protein homotrimerization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis	cellular anatomical structure neuron to neuron synapse synapse cell junction hippocampal mossy fiber to CA3 synapse Schaffer collateral - CA1 synapse protein-containing complex signaling receptor complex cell periphery plasma membrane membrane axon cell projection neuron projection cellular anatomical structure neuron to neuron synapse synapse cell junction hippocampal mossy fiber to CA3 synapse Schaffer collateral - CA1 synapse protein-containing complex signaling receptor complex cell periphery plasma membrane membrane axon cell projection neuron projection plasma membrane bounded cell projection postsynapse

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	IPR053792	ATP P2X receptor, conserved site	Conserved Site
A, B, C	IPR027309	P2X purinoreceptor extracellular domain superfamily	Homologous Superfamily
A, B, C	IPR003046	P2X3 purinoceptor	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	: P56373	Hyperalgesia Crohn disease Hodgkins lymphoma nervous system injury