Annotations: 3AUW

Cytoplasmic domain of inward rectifier potassium channel Kir3.2 in complex with cadmium

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	E set domains	8082855	3000070	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	E set domains	8082855	3000070	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)
D	MIF4G	e3auwD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: MIF4G	ECOD (v294.2)
B	Ion_trans_2	e3auwB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Zn-dependent exopeptidases	T: Zn-dependent exopeptidases	F: Ion_trans_2	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.40.1400	Mainly Beta	Sandwich	Immunoglobulin-like	G protein-activated inward rectifier potassium channel 1	CATH (4.3.0)
B	2.60.40.1400	Mainly Beta	Sandwich	Immunoglobulin-like	G protein-activated inward rectifier potassium channel 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF17655	Inward rectifier potassium channel C-terminal domain (IRK_C)	Inward rectifier potassium channel C-terminal domain	This cytoplasmic C-terminal domain has an Ig fold.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Potassium inwardly-rectifying channel, subfamily J, member 6	passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity monoatomic cation channel activity metal ion transmembrane transporter activity protein binding binding G-protein alpha-subunit binding inward rectifier potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity voltage-gated potassium channel activity G-protein activated inward rectifier potassium channel activity ligand-gated monoatomic cation channel activity	import into cell transport monoatomic ion transmembrane transport import across plasma membrane potassium ion transmembrane transport establishment of localization inorganic cation import across plasma membrane metal ion transport monoatomic cation transmembrane transport transmembrane transport localization inorganic ion import across plasma membrane monoatomic ion transport potassium ion transport import into cell transport monoatomic ion transmembrane transport import across plasma membrane potassium ion transmembrane transport establishment of localization inorganic cation import across plasma membrane metal ion transport monoatomic cation transmembrane transport transmembrane transport localization inorganic ion import across plasma membrane monoatomic ion transport potassium ion transport cellular process potassium ion import across plasma membrane monoatomic cation transport negative regulation of protein transport regulation of localization establishment of protein localization regulation of cellular process nitrogen compound transport negative regulation of biological process negative regulation of transport cell communication negative regulation of secretion negative regulation of hormone secretion negative regulation of secretion by cell intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of biological process negative regulation of peptide hormone secretion regulation of hormone levels establishment of protein localization to extracellular region negative regulation of establishment of protein localization protein secretion regulation of protein secretion regulation of secretion negative regulation of protein secretion regulation of hormone secretion regulation of protein localization regulation of peptide secretion signaling negative regulation of signaling hormone secretion negative regulation of cell communication protein localization to extracellular region negative regulation of peptide secretion peptide secretion regulation of secretion by cell secretion by cell signal release negative regulation of cellular process negative regulation of protein localization regulation of signaling regulation of transport secretion regulation of peptide transport biological regulation regulation of establishment of protein localization export from cell cell-cell signaling regulation of protein transport peptide transport negative regulation of insulin secretion protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion	cellular anatomical structure membrane cell surface parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex plasma membrane potassium channel complex membrane protein complex cation channel complex cellular anatomical structure membrane cell surface parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex plasma membrane potassium channel complex membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex inward rectifier potassium channel complex monoatomic ion channel complex presynapse presynaptic membrane plasma membrane region synaptic membrane somatodendritic compartment neuronal cell body membrane cell body cell body membrane neuronal cell body axon cell projection neuron projection plasma membrane bounded cell projection dendrite dendritic tree postsynapse
A, C	Potassium inwardly-rectifying channel, subfamily J, member 6	passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity monoatomic cation channel activity metal ion transmembrane transporter activity protein binding binding G-protein alpha-subunit binding inward rectifier potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity voltage-gated potassium channel activity G-protein activated inward rectifier potassium channel activity ligand-gated monoatomic cation channel activity	import into cell transport monoatomic ion transmembrane transport import across plasma membrane potassium ion transmembrane transport establishment of localization inorganic cation import across plasma membrane metal ion transport monoatomic cation transmembrane transport transmembrane transport localization inorganic ion import across plasma membrane monoatomic ion transport potassium ion transport import into cell transport monoatomic ion transmembrane transport import across plasma membrane potassium ion transmembrane transport establishment of localization inorganic cation import across plasma membrane metal ion transport monoatomic cation transmembrane transport transmembrane transport localization inorganic ion import across plasma membrane monoatomic ion transport potassium ion transport cellular process potassium ion import across plasma membrane monoatomic cation transport negative regulation of protein transport regulation of localization establishment of protein localization regulation of cellular process nitrogen compound transport negative regulation of biological process negative regulation of transport cell communication negative regulation of secretion negative regulation of hormone secretion negative regulation of secretion by cell intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of biological process negative regulation of peptide hormone secretion regulation of hormone levels establishment of protein localization to extracellular region negative regulation of establishment of protein localization protein secretion regulation of protein secretion regulation of secretion negative regulation of protein secretion regulation of hormone secretion regulation of protein localization regulation of peptide secretion signaling negative regulation of signaling hormone secretion negative regulation of cell communication protein localization to extracellular region negative regulation of peptide secretion peptide secretion regulation of secretion by cell secretion by cell signal release negative regulation of cellular process negative regulation of protein localization regulation of signaling regulation of transport secretion regulation of peptide transport biological regulation regulation of establishment of protein localization export from cell cell-cell signaling regulation of protein transport peptide transport negative regulation of insulin secretion protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion	cellular anatomical structure membrane cell surface parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex plasma membrane potassium channel complex membrane protein complex cation channel complex cellular anatomical structure membrane cell surface parallel fiber to Purkinje cell synapse synapse cell junction excitatory synapse voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex plasma membrane potassium channel complex membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex inward rectifier potassium channel complex monoatomic ion channel complex presynapse presynaptic membrane plasma membrane region synaptic membrane somatodendritic compartment neuronal cell body membrane cell body cell body membrane neuronal cell body axon cell projection neuron projection plasma membrane bounded cell projection dendrite dendritic tree postsynapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR041647	Inward rectifier potassium channel, C-terminal	Domain
B, D	IPR040445	Potassium channel, inwardly rectifying, transmembrane domain	Domain
B, D	IPR016449	Potassium channel, inwardly rectifying, Kir	Family
B, D	IPR014756	Immunoglobulin E-set	Homologous Superfamily
B, D	IPR003275	Potassium channel, inwardly rectifying, Kir3.2	Family
B, D	IPR013518	Potassium channel, inwardly rectifying, Kir, cytoplasmic	Homologous Superfamily
A, C	IPR041647	Inward rectifier potassium channel, C-terminal	Domain
A, C	IPR040445	Potassium channel, inwardly rectifying, transmembrane domain	Domain
A, C	IPR016449	Potassium channel, inwardly rectifying, Kir	Family
A, C	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A, C	IPR003275	Potassium channel, inwardly rectifying, Kir3.2	Family
A, C	IPR013518	Potassium channel, inwardly rectifying, Kir, cytoplasmic	Homologous Superfamily

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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.