Annotations: 9MA5

Cryo-EM structure of heteromeric Kir4.1/5.1 potassium channel in complex with spermine

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, C	PF01007	Inward rectifier potassium channel transmembrane domain (IRK)	Inward rectifier potassium channel transmembrane domain		Domain
A, C	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
B, D	PF01007	Inward rectifier potassium channel transmembrane domain (IRK)	Inward rectifier potassium channel transmembrane domain		Domain
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
A, C	Inward rectifier potassium channel 16	inward rectifier potassium channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity inward rectifier potassium channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport monoatomic cation transmembrane transport transmembrane transport cellular process regulation of localization regulation of biological process localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport monoatomic cation transmembrane transport transmembrane transport cellular process regulation of localization regulation of biological process regulation of cellular process regulation of transport regulation of monoatomic ion transport biological regulation regulation of monoatomic ion transmembrane transport regulation of transmembrane transport import into cell import across plasma membrane inorganic cation import across plasma membrane inorganic ion import across plasma membrane potassium ion import across plasma membrane	cell periphery cellular anatomical structure plasma membrane membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex potassium channel complex membrane protein complex cation channel complex cell periphery cellular anatomical structure plasma membrane membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex potassium channel complex membrane protein complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex
B, D	ATP-sensitive inward rectifier potassium channel 10	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 inward rectifier potassium channel activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity ligand-gated channel activity ATP-activated inward rectifier potassium channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity	transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport regulation of resting membrane potential biological regulation transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport regulation of resting membrane potential biological regulation regulation of biological quality regulation of membrane potential cellular response to stimulus cellular response to metal ion cellular response to chemical stimulus response to stimulus response to metal ion response to potassium ion response to chemical cellular response to potassium ion developmental process multicellular organismal process oligodendrocyte development cellular developmental process central nervous system myelination cell development nervous system development glial cell development myelination multicellular organism development neurogenesis axon ensheathment in central nervous system central nervous system development gliogenesis oligodendrocyte differentiation glial cell differentiation axon ensheathment ensheathment of neurons cell differentiation anatomical structure development system development import into cell cellular localization nitrogen compound transport carboxylic acid transmembrane transport amino acid transmembrane transport amino acid neurotransmitter reuptake L-amino acid transport L-glutamate import establishment of localization in cell neurotransmitter reuptake L-glutamate import across plasma membrane carboxylic acid transport glutamate reuptake import across plasma membrane neurotransmitter transport organic acid transport amino acid transport acidic amino acid transport dicarboxylic acid transport L-alpha-amino acid transmembrane transport amino acid import across plasma membrane neurotransmitter uptake L-glutamate transmembrane transport organelle assembly plasma membrane bounded cell projection organization cell projection organization plasma membrane bounded cell projection assembly cellular component biogenesis cellular component organization organelle organization cellular component assembly cilium assembly cellular component organization or biogenesis non-motile cilium assembly cilium organization cell projection assembly regulation of neuronal synaptic plasticity regulation of synaptic plasticity trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process regulation of long-term neuronal synaptic plasticity modulation of chemical synaptic transmission signaling cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication potassium ion homeostasis inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis monoatomic cation homeostasis sensory perception of light stimulus system process sensory perception nervous system process visual perception regulation of localization regulation of transport regulation of monoatomic ion transport regulation of monoatomic ion transmembrane transport regulation of transmembrane transport adult walking behavior adult locomotory behavior behavior adult behavior locomotory behavior walking behavior inorganic cation import across plasma membrane inorganic ion import across plasma membrane potassium ion import across plasma membrane	glial cell projection cell projection cellular anatomical structure plasma membrane bounded cell projection astrocyte projection cell periphery plasma membrane membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane presynapse synapse glial cell projection cell projection cellular anatomical structure plasma membrane bounded cell projection astrocyte projection cell periphery plasma membrane membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane presynapse synapse cell junction cell body ciliary base membrane-bounded organelle organelle cilium protein-containing complex transmembrane transporter complex membrane protein complex transporter complex monoatomic ion channel complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR041647	Inward rectifier potassium channel, C-terminal	Domain
A, C	IPR008061	Potassium channel, inwardly rectifying, Kir5	Family
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	IPR013518	Potassium channel, inwardly rectifying, Kir, cytoplasmic	Homologous Superfamily
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	IPR003269	Potassium channel, inwardly rectifying, Kir1.2	Family
B, D	IPR013518	Potassium channel, inwardly rectifying, Kir, cytoplasmic	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, C	: Q9NPI9	pilocytic astrocytoma psoriasis subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor cystic fibrosis gastric carcinoma lung cancer malignant mesothelioma nephrosclerosis pancreatic intraductal papillary-mucinous neoplasm pituitary cancer sinusitis breast cancer ductal breast carcinoma in situ invasive ductal breast carcinoma pilocytic astrocytoma psoriasis subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor cystic fibrosis gastric carcinoma lung cancer malignant mesothelioma nephrosclerosis pancreatic intraductal papillary-mucinous neoplasm pituitary cancer sinusitis breast cancer ductal breast carcinoma in situ invasive ductal breast carcinoma malignant ependymoma malignant pancreatic neoplasm oligodendroglioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia primitive neuroectodermal tumor Sjogren syndrome breast carcinoma EAST syndrome large cell medulloblastoma malignant glioma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma
B, D	: P78508	EAST syndrome Pendred syndrome intellectual disability multiple sclerosis autosomal recessive nonsyndromic deafness 4 subependymal giant cell astrocytoma Ataxias, Hereditary epilepsy malignant ependymoma atypical teratoid rhabdoid tumor interstitial cystitis malignant glioma schizophrenia enlarged vestibular aqueduct syndrome glioblastoma EAST syndrome Pendred syndrome intellectual disability multiple sclerosis autosomal recessive nonsyndromic deafness 4 subependymal giant cell astrocytoma Ataxias, Hereditary epilepsy malignant ependymoma atypical teratoid rhabdoid tumor interstitial cystitis malignant glioma schizophrenia enlarged vestibular aqueduct syndrome glioblastoma large cell medulloblastoma medulloblastoma oligodendroglioma

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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.

9MA5 | pdb_00009ma5

Cryo-EM structure of heteromeric Kir4.1/5.1 potassium channel in complex with spermine

External Resource: Annotation

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation