9DDX | pdb_00009ddx

Cryo-EM structure of the human P2X2 receptor in conformation II of the ATP-bound desensitized state

External Resource: Annotation

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

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 2	ligand-gated channel activity ligand-gated monoatomic ion channel activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity extracellularly ATP-gated monoatomic cation channel activity ATP-gated ion channel activity excitatory extracellular ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity extracellularly ATP-gated monoatomic cation channel activity ATP-gated ion channel activity excitatory extracellular ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity monoatomic cation channel activity ligand-gated monoatomic cation channel activity 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 identical protein binding protein binding	multicellular organismal process system process smooth muscle contraction phasic smooth muscle contraction muscle contraction peristalsis muscle system process cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process multicellular organismal process system process smooth muscle contraction phasic smooth muscle contraction muscle contraction peristalsis muscle system process cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication 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 regulation of biological process regulation of signaling biological regulation positive regulation of intracellular signal transduction regulation of response to stimulus calcium-mediated signaling regulation of cell communication cellular process positive regulation of signaling developmental process myotube cell development skeletal muscle fiber development cellular developmental process skeletal muscle tissue development animal organ development cell development tissue development muscle cell differentiation myotube differentiation striated muscle tissue development muscle structure development skeletal muscle organ development striated muscle cell development muscle cell development cell differentiation anatomical structure development muscle tissue development muscle organ development striated muscle cell differentiation sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste response to stress response to ischemia detection of hypoxic conditions in blood by carotid body chemoreceptor signaling regulation of blood pressure regulation of systemic arterial blood pressure by carotid body chemoreceptor signaling detection of hypoxic conditions in blood by chemoreceptor signaling detection of stimulus cellular response to chemical stimulus regulation of systemic arterial blood pressure circulatory system process response to chemical detection of chemical stimulus regulation of biological quality nervous system process involved in regulation of systemic arterial blood pressure regulation of systemic arterial blood pressure by chemoreceptor signaling blood circulation cellular component organization cell junction organization neuromuscular junction development synapse organization cellular component organization or biogenesis trans-synaptic signaling cell-cell signaling chemical synaptic transmission synaptic signaling anterograde trans-synaptic signaling neuromuscular synaptic transmission behavior multicellular organismal response to stress response to pain behavioral response to pain transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport monoatomic cation transport calcium ion transmembrane transport response to organophosphorus response to oxygen-containing compound response to nitrogen compound response to ATP response to purine-containing compound sensory perception of sound sensory perception of mechanical stimulus urinary bladder smooth muscle contraction urinary tract smooth muscle contraction 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 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 response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus response to carbohydrate	membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cellular anatomical structure cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle neuronal dense core vesicle cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane protein-containing complex receptor complex somatodendritic compartment cell body neuronal cell body postsynapse synapse cell junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR053792	ATP P2X receptor, conserved site	Conserved Site
A, B, C	IPR001429	P2X purinoreceptor	Family
A, B, C	IPR003045	P2X2 purinoceptor	Family
A, B, C	IPR027309	P2X purinoreceptor extracellular domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: Q9UBL9	autosomal dominant nonsyndromic deafness 41 nonsyndromic genetic deafness epilepsy Hyperalgesia autosomal dominant nonsyndromic deafness 1 psoriasis atrial fibrillation prostate carcinoma

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.