Kcna4 potassium voltage-gated channel subfamily A member 4 [Rattus norvegicus (Norway rat)] - Gene

Summary

Official Symbol: Kcna4provided by RGD
Official Full Name: potassium voltage-gated channel subfamily A member 4provided by RGD
Primary source: RGD:2952
See related: EnsemblRapid:ENSRNOG00000004918 AllianceGenome:RGD:2952
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Rattus norvegicus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus
Also known as: Kv4; RK3; RHK1; KCHAN; Kv1.4
Summary: Enables voltage-gated potassium channel activity. Involved in potassium ion transmembrane transport. Located in several cellular components, including asymmetric synapse; cell surface; and dendrite. Part of voltage-gated potassium channel complex. Is active in glutamatergic synapse; postsynaptic membrane; and presynaptic membrane. Orthologous to human KCNA4 (potassium voltage-gated channel subfamily A member 4). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Biased expression in Brain (RPKM 102.7), Heart (RPKM 70.8) and 1 other tissue See more
Orthologs: human mouse all
NEW: Try the new Gene table
Try the new Transcript table

Genomic context

Location:: 3q33

Exon count:: 2

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCr8 (GCF_036323735.1)	3	NC_086021.1 (114211091..114218545)
RS_2023_06	previous assembly	mRatBN7.2 (GCF_015227675.2)	3	NC_051338.1 (93756399..93778004)
106	previous assembly	Rnor_6.0 (GCF_000001895.5)	3	NC_005102.4 (98293295..98300763)

Chromosome 3 - NC_086021.1 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

Go to the top of the page Help

Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

Go to the top of the page Help

See details

Project title: A rat RNA-Seq transcriptomic BodyMap across 11 organs and 4 developmental stages
Description: 320 RNA samples isolated from 11 organs (adrenal gland, brain, heart, kidney, liver, lung, muscle, spleen, thymus, and testes or uterus) from both sexes of Fischer 344 rats across four developmental stages (2-, 6-, 21-, and 104-weeks-old)
BioProject: PRJNA238328
Publication: PMID 24510058
Analysis date: Mon Jun 6 17:44:12 2016

Bibliography

Go to the top of the page Help

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Neuronal and behavioral outputs associated with low motivation were linked to faster inactivation of a voltage-gated potassium channel, Kv1.4.
Title: Altered gating of K(v)1.4 in the nucleus accumbens suppresses motivation for reward.
Four prolines and four lysines in a Kv1.4 homotetramer might provide a binding site for a putative endoplasmic reticulum-export molecule to ensure high cell surface protein expression of the channel.
Title: Amino Acid Properties of Trafficking Determinants in the Outer Pore-Forming Region of Kv1 Potassium Channels in Cell Lines.
synaptotagmin I is an interacting protein of Kv1.4 channel.
Title: Synaptotagmin I delays the fast inactivation of Kv1.4 channel through interaction with its N-terminus.
Kv1.4 K(+) channels are potently regulated by intracellular free heme; heme binds to the N-terminal inactivation domain and thereby impairs the inactivation process
Title: Heme impairs the ball-and-chain inactivation of potassium channels.
Endogenous H2S generating enzyme cystathionine-beta-synthetase was co-localized well with Kv1.1 and Kv1.4 in trigeminal ganglion neurons.
Title: Hydrogen sulfide increases excitability through suppression of sustained potassium channel currents of rat trigeminal ganglion neurons.
Immunocytochemistry indicated that protein expression for Kv1.4 increased between 1 wk and 4-5 wk of age.
Title: Postnatal development of A-type and Kv1- and Kv2-mediated potassium channel currents in neocortical pyramidal neurons.
N-type inactivation prevention (NIP) domain function was shown to require positioning of Kv1.6 adjacent to the Kv1.4 subunit.
Title: Position-dependent attenuation by Kv1.6 of N-type inactivation of Kv1.4-containing channels.
NMR assignments for 48 kDa tetramer of the T1 domain of Kv1.4 [Kv1.4]
Title: NMR assignments of a 48 kDa tetramer of the T1 domain of the mammalian voltage gated potassium channel Kv1.4.
Both arachidonic acid and Trolox potently modulate Kv1.4 and Kv4.2 channel alpha-subunits, thereby presumably tuning presynaptic transmitter release and postsynaptic somatodendritic excitability in synaptic transmission and plasticity.
Title: Arachidonic acid potently inhibits both postsynaptic-type Kv4.2 and presynaptic-type Kv1.4 IA potassium channels.
Bladder inflammation increases bladder afferent neuron excitability by decreasing expression of Kv1.4 alpha-subunits.
Title: Bladder hyperactivity and increased excitability of bladder afferent neurons associated with reduced expression of Kv1.4 alpha-subunit in rats with cystitis.

Submit: New GeneRIF Correction See all GeneRIFs (20)

Interactions

Go to the top of the page Help

Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

Go to the top of the page Help

Markers

PMC20269P1 (e-PCR)
- UniSTS:271893

PMC24571P1 (e-PCR)
- UniSTS:272265

Gene Ontology Provided by RGD

Function	Evidence Code	Pubs
enables delayed rectifier potassium channel activity	IBA Inferred from Biological aspect of Ancestor more info
enables monoatomic ion channel activity	IDA Inferred from Direct Assay more info	PubMed
enables potassium channel activity	IDA Inferred from Direct Assay more info	PubMed
enables potassium ion binding	IEA Inferred from Electronic Annotation more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	IEA Inferred from Electronic Annotation more info
enables voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	ISO Inferred from Sequence Orthology more info
enables voltage-gated potassium channel activity	IDA Inferred from Direct Assay more info	PubMed
enables voltage-gated potassium channel activity	IEA Inferred from Electronic Annotation more info
enables voltage-gated potassium channel activity	IMP Inferred from Mutant Phenotype more info	PubMed
enables voltage-gated potassium channel activity	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in action potential	IBA Inferred from Biological aspect of Ancestor more info
involved_in potassium ion transmembrane transport	IBA Inferred from Biological aspect of Ancestor more info
involved_in potassium ion transmembrane transport	IEA Inferred from Electronic Annotation more info
involved_in potassium ion transmembrane transport	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in potassium ion transmembrane transport	ISO Inferred from Sequence Orthology more info
involved_in potassium ion transport	TAS Traceable Author Statement more info	PubMed
involved_in protein homooligomerization	IEA Inferred from Electronic Annotation more info
involved_in regulation of presynaptic membrane potential	IEA Inferred from Electronic Annotation more info

Component	Evidence Code	Pubs
located_in asymmetric synapse	IDA Inferred from Direct Assay more info	PubMed
is_active_in axon	IBA Inferred from Biological aspect of Ancestor more info
located_in axon	IDA Inferred from Direct Assay more info	PubMed
located_in axon initial segment	IEA Inferred from Electronic Annotation more info
is_active_in axon initial segment	ISO Inferred from Sequence Orthology more info
located_in cell surface	IDA Inferred from Direct Assay more info	PubMed
located_in dendritic shaft	IDA Inferred from Direct Assay more info	PubMed
is_active_in dendritic spine	IBA Inferred from Biological aspect of Ancestor more info
located_in dendritic spine	IDA Inferred from Direct Assay more info	PubMed
is_active_in glutamatergic synapse	IDA Inferred from Direct Assay more info	PubMed
is_active_in membrane	IBA Inferred from Biological aspect of Ancestor more info
located_in membrane	IDA Inferred from Direct Assay more info	PubMed
located_in membrane	ISO Inferred from Sequence Orthology more info
located_in plasma membrane	IMP Inferred from Mutant Phenotype more info	PubMed
located_in plasma membrane	ISO Inferred from Sequence Orthology more info
is_active_in postsynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
located_in postsynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
is_active_in presynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
located_in presynaptic membrane	IDA Inferred from Direct Assay more info	PubMed
part_of voltage-gated potassium channel complex	IBA Inferred from Biological aspect of Ancestor more info
part_of voltage-gated potassium channel complex	IDA Inferred from Direct Assay more info	PubMed
part_of voltage-gated potassium channel complex	IEA Inferred from Electronic Annotation more info
part_of voltage-gated potassium channel complex	ISO Inferred from Sequence Orthology more info

General protein information

Go to the top of the page Help

Preferred Names: potassium voltage-gated channel subfamily A member 4

Names: RCK4; potassium channel, voltage gated shaker related subfamily A, member 4; potassium voltage-gated channel, shaker-related subfamily, member 4; voltage-gated potassium channel subunit Kv1.4

NCBI Reference Sequences (RefSeq)

Go to the top of the page Help

NEW Try the new Transcript table

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_012971.4 → NP_037103.2 potassium voltage-gated channel subfamily A member 4

Status: VALIDATED

Source sequence(s)

JAXUCZ010000003

UniProtKB/Swiss-Prot

P15385

UniProtKB/TrEMBL

A6HNZ6, G3V6L7

Conserved Domains (3) summary

cl38908
Location:177 → 304

BTB_POZ; BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain superfamily

pfam00520
Location:307 → 571

Ion_trans; Ion transport protein

pfam07941
Location:1 → 37

K_channel_TID; Potassium channel Kv1.4 tandem inactivation domain

RefSeqs of Annotated Genomes: GCF_036323735.1-RS_2024_02

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCr8

Genomic

NC_086021.1 Reference GRCr8

Range

114211091..114218545

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_006234673.5 → XP_006234735.1 potassium voltage-gated channel subfamily A member 4 isoform X1

Related

ENSRNOP00000110060.1, ENSRNOT00000132453.1

Conserved Domains (3) summary

cl38908
Location:177 → 304

BTB_POZ; BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain superfamily

pfam00520
Location:307 → 571

Ion_trans; Ion transport protein

pfam07941
Location:1 → 37

K_channel_TID; Potassium channel Kv1.4 tandem inactivation domain