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ASIC3 acid sensing ion channel subunit 3 [ Homo sapiens (human) ]

Gene ID: 9311, updated on 25-Nov-2025
Official Symbol
ASIC3provided by HGNC
Official Full Name
acid sensing ion channel subunit 3provided by HGNC
Primary source
HGNC:HGNC:101
See related
Ensembl:ENSG00000213199 MIM:611741; AllianceGenome:HGNC:101
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
ACCN3; TNaC1; DRASIC; SLNAC1
Summary
This gene encodes a member of the degenerin/epithelial sodium channel (DEG/ENaC) superfamily. The members of this family are amiloride-sensitive sodium channels that contain intracellular N and C termini, two hydrophobic transmembrane regions, and a large extracellular loop, which has many cysteine residues with conserved spacing. The member encoded by this gene is an acid sensor and may play an important role in the detection of lasting pH changes. In addition, a heteromeric association between this member and acid-sensing (proton-gated) ion channel 2 has been observed as proton-gated channels sensitive to gadolinium. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2012]
Expression
Broad expression in testis (RPKM 3.0), brain (RPKM 2.0) and 20 other tissues See more
Orthologs
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See ASIC3 in Genome Data Viewer
Location:
7q36.1
Exon count:
11
Annotation release Status Assembly Chr Location
RS_2025_08 current GRCh38.p14 (GCF_000001405.40) 7 NC_000007.14 (151048292..151052756)
RS_2025_08 current T2T-CHM13v2.0 (GCF_009914755.1) 7 NC_060931.1 (152221380..152225844)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 7 NC_000007.13 (150745379..150749843)

Chromosome 7 - NC_000007.14Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC124901777 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr7:150722492-150723096 Neighboring gene NANOG-H3K27ac hESC enhancer GRCh37_chr7:150723702-150724305 Neighboring gene NANOG-H3K27ac hESC enhancer GRCh37_chr7:150724306-150724910 Neighboring gene H3K27ac hESC enhancer GRCh37_chr7:150725516-150726120 Neighboring gene H3K27ac hESC enhancer GRCh37_chr7:150726121-150726724 Neighboring gene ATP binding cassette subfamily B member 8 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr7:150736215-150736999 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150737000-150737783 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150747130-150747768 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 18791 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150748624-150749202 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150750636-150751136 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150754255-150754788 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 26847 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 26848 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 26849 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 26850 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 18792 Neighboring gene cyclin dependent kinase 5 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 18793 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr7:150757470-150758377 Neighboring gene solute carrier family 4 member 2 upstream open reading frame Neighboring gene solute carrier family 4 member 2

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Potential readthrough

Included gene: ABCB8

Gene Ontology Provided by GOA

Function Evidence Code Pubs
contributes_to ligand-gated sodium channel activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables ligand-gated sodium channel activity IEA
Inferred from Electronic Annotation
more info
 
enables monoatomic cation channel activity IEA
Inferred from Electronic Annotation
more info
 
enables monoatomic ion-gated channel activity IEA
Inferred from Electronic Annotation
more info
 
enables pH-gated monoatomic ion channel activity IDA
Inferred from Direct Assay
more info
PubMed 
enables pH-gated sodium channel activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables pH-gated sodium channel activity IDA
Inferred from Direct Assay
more info
PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
enables sodium channel activity IEA
Inferred from Electronic Annotation
more info
 
enables sodium channel activity TAS
Traceable Author Statement
more info
PubMed 
Process Evidence Code Pubs
acts_upstream_of_or_within detection of chemical stimulus involved in sensory perception IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within detection of chemical stimulus involved in sensory perception of pain IEA
Inferred from Electronic Annotation
more info
 
involved_in detection of chemical stimulus involved in sensory perception of pain ISS
Inferred from Sequence or Structural Similarity
more info
 
acts_upstream_of_or_within detection of mechanical stimulus involved in sensory perception IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within detection of mechanical stimulus involved in sensory perception of pain IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within detection of temperature stimulus involved in sensory perception IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within detection of temperature stimulus involved in sensory perception of pain IEA
Inferred from Electronic Annotation
more info
 
involved_in membrane depolarization IDA
Inferred from Direct Assay
more info
PubMed 
acts_upstream_of_or_within monoatomic cation transport IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within monoatomic ion transmembrane transport IEA
Inferred from Electronic Annotation
more info
 
involved_in monoatomic ion transmembrane transport IEA
Inferred from Electronic Annotation
more info
 
involved_in monoatomic ion transport IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within response to acidic pH IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within response to heat IEA
Inferred from Electronic Annotation
more info
 
acts_upstream_of_or_within response to mechanical stimulus IEA
Inferred from Electronic Annotation
more info
 
involved_in sensory perception of sour taste IMP
Inferred from Mutant Phenotype
more info
PubMed 
involved_in sodium ion transmembrane transport IBA
Inferred from Biological aspect of Ancestor
more info
 
involved_in sodium ion transmembrane transport IEA
Inferred from Electronic Annotation
more info
 
involved_in sodium ion transport IEA
Inferred from Electronic Annotation
more info
 
Component Evidence Code Pubs
located_in cytoplasm IEA
Inferred from Electronic Annotation
more info
 
located_in membrane IEA
Inferred from Electronic Annotation
more info
 
is_active_in plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
 
is_active_in plasma membrane IDA
Inferred from Direct Assay
more info
PubMed 
located_in plasma membrane IEA
Inferred from Electronic Annotation
more info
 
located_in plasma membrane TAS
Traceable Author Statement
more info
PubMed 
Preferred Names
acid-sensing ion channel 3
Names
acid sensing (proton gated) ion channel 3
amiloride-sensitive cation channel 3, testis
modulatory subunit of ASIC2a
neuronal amiloride-sensitive cation channel 3
proton-gated cation channel subunit
testis sodium channel 1

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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)

  1. NM_004769.4NP_004760.1  acid-sensing ion channel 3 isoform a

    See identical proteins and their annotated locations for NP_004760.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) uses an alternate splice site in the 3' coding region, compared to variant 2. The resulting protein (isoform a) has a shorter and distinct C-terminus, compared to isoform b.
    Source sequence(s)
    AF095897, AK313926
    Consensus CDS
    CCDS5916.1
    UniProtKB/Swiss-Prot
    B2R9V0, O60263, O75906, Q59FN9, Q9UER8, Q9UHC3, Q9UHC4
    UniProtKB/TrEMBL
    A0A090N7X8
    Related
    ENSP00000344838.5, ENST00000349064.10
    Conserved Domains (1) summary
    cl02990
    Location:20514
    ASC; Amiloride-sensitive sodium channel
  2. NM_020321.3NP_064717.1  acid-sensing ion channel 3 isoform b

    See identical proteins and their annotated locations for NP_064717.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) represents the longest transcript and encodes the longest isoform (b).
    Source sequence(s)
    AC010973, AF195025, AI580095, AK313926
    Consensus CDS
    CCDS5915.1
    UniProtKB/TrEMBL
    A0A090N8Q1
    Related
    ENSP00000297512.8, ENST00000297512.12
    Conserved Domains (1) summary
    cl02990
    Location:20534
    ASC; Amiloride-sensitive sodium channel
  3. NM_020322.3NP_064718.1  acid-sensing ion channel 3 isoform c

    See identical proteins and their annotated locations for NP_064718.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) lacks an exon and uses an alternate splice site in the 3' coding region, compared to variant 2. The resulting protein (isoform c) has a shorter and distinct C-terminus, compared to isoform b.
    Source sequence(s)
    AC010973, AF095897, AI580095, AK313926
    Consensus CDS
    CCDS5914.1
    UniProtKB/TrEMBL
    A0A090N8Z6
    Related
    ENSP00000350600.4, ENST00000357922.8
    Conserved Domains (1) summary
    cl02990
    Location:20523
    ASC; Amiloride-sensitive sodium channel

RNA

  1. NR_046401.1 RNA Sequence

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) lacks an alternate internal exon and uses an alternate splice site, compared to variant 1. This variant is represented as non-coding because the use of the 5'-most supported translational start codon, as used in variant 1, renders the transcript a candidate for nonsense-mediated mRNA decay (NMD).
    Source sequence(s)
    AB209421, AC010973, AI580095, AK313926
    Related
    ENST00000377904.8

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2025_08

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

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000007.14 Reference GRCh38.p14 Primary Assembly

    Range
    151048292..151052756
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060931.1 Alternate T2T-CHM13v2.0

    Range
    152221380..152225844
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)