| Identification |
|---|
| HMDB Protein ID
| CDBP04245 |
| Secondary Accession Numbers
| Not Available |
| Name
| Amiloride-sensitive cation channel 2, neuronal |
| Description
| Not Available |
| Synonyms
|
- ASIC1
- Acid-sensing ion channel 1
- BNaC2
- Brain sodium channel 2
|
| Gene Name
| ACCN2 |
| Protein Type
| Transporter |
| Biological Properties |
|---|
| General Function
| Involved in ligand-gated sodium channel activity |
| Specific Function
| Cation channel with high affinity for sodium, which is gated by extracellular protons and inhibited by the diuretic amiloride. Also permeable for Ca(2+), Li(+) and K(+). Generates a biphasic current with a fast inactivating and a slow sustained phase. Mediates glutamate-independent Ca(2+) entry into neurons upon acidosis. This Ca(2+) overloading is toxic for cortical neurons and may be in part responsible for ischemic brain injury. Heteromeric channel assembly seems to modulate channel properties. Functions as a postsynaptic proton receptor that influences intracellular Ca(2+) concentration and calmodulin-dependent protein kinase II phosphorylation and thereby the density of dendritic spines. Modulates activity in the circuits underlying innate fear |
| GO Classification
|
| Component |
| membrane |
| cell part |
| membrane part |
| intrinsic to membrane |
| integral to membrane |
| Function |
| transmembrane transporter activity |
| substrate-specific transmembrane transporter activity |
| ion transmembrane transporter activity |
| sodium channel activity |
| amiloride-sensitive sodium channel activity |
| transporter activity |
| ion channel activity |
| cation channel activity |
| Process |
| transport |
| monovalent inorganic cation transport |
| ion transport |
| cation transport |
| sodium ion transport |
| establishment of localization |
|
| Cellular Location
|
- Cell membrane
- Multi-pass membrane protein
|
| Pathways
|
Not Available
|
| Gene Properties |
|---|
| Chromosome Location
| Chromosome:1 |
| Locus
| 12q12 |
| SNPs
| ACCN2 |
| Gene Sequence
|
>1587 bp
ATGGAACTGAAGGCCGAGGAGGAGGAGGTGGGTGGCGTCCAGCCGGTGAGCATCCAGGCC
TTCGCCAGCAGCTCCACACTGCACGGCCTGGCCCACATCTTCTCCTACGAGCGGCTGTCT
CTGAAGCGGGCACTGTGGGCCCTGTGCTTCCTGGGCTCGCTGGCTGTGCTGCTGTGTGTG
TGCACGGAGCGTGTGCAGTACTACTTCCACTACCACCATGTCACCAAGCTCGACGAGGTG
GCTGCCTCTCAGCTTACCTTCCCTGCTGTCACGCTGTGCAACCTCAACGAGTTCCGCTTT
AGCCAAGTCTCCAAGAATGACCTGTATCATGCTGGGGAGCTGCTGGCCCTGCTCAACAAC
AGGTATGAGATACCAGACACACAGATGGCAGATGAAAAGCAGCTGGAGATACTGCAGGAC
AAAGCCAACTTCCGCAGCTTCAAACCCAAACCCTTCAACATGCGTGAGTTCTACGACCGA
GCTGGGCACGACATTCGAGACATGCTGCTCTCCTGCCACTTCCGGGGGGAGGTCTGCAGC
GCTGAAGACTTCAAGGTGGTCTTCACACGCTATGGAAAGTGCTACACGTTCAACTCGGGC
CGAGATGGGCGGCCGCGGCTGAAGACCATGAAGGGTGGGACGGGCAATGGGCTGGAAATC
ATGCTGGACATCCAGCAGGACGAGTACCTGCCTGTGTGGGGGGAGACTGACGAGACGTCC
TTCGAAGCAGGCATCAAAGTGCAGATCCATAGTCAGGATGAACCTCCTTTCATCGACCAG
CTGGGCTTTGGCGTGGCCCCAGGCTTCCAGACCTTTGTGGCCTGCCAGGAGCAGCGGCTC
ATCTACCTGCCCCCACCCTGGGGCACCTGCAAAGCTGTTACCATGGACTCGGATTTGGAT
TTCTTCGACTCCTACAGCATCACTGCCTGCCGCATCGACTGTGAGACGCGCTACCTGGTG
GAGAACTGCAACTGCCGCATGGTGCACATGCCAGGGGATGCCCCATACTGTACTCCAGAG
CAGTACAAGGAGTGTGCAGATCCTGCTCTGGACTTCCTGGTGGAGAAGGACCAGGAGTAC
TGCGTGTGTGAAATGCCTTGCAACCTGACCCGCTATGGCAAAGAGCTGTCCATGGTCAAG
ATCCCCAGCAAAGCCTCAGCCAAGTACCTGGCCAAGAAGTTCAACAAATCTGAGCAATAC
ATAGGGGAGAACATCCTGGTGCTGGACATTTTCTTTGAAGTCCTCAACTATGAGACCATT
GAACAGAAGAAGGCCTATGAGATTGCAGGGCTCCTGGGTGACATCGGGGGCCAGATGGGG
CTGTTCATCGGGGCCAGCATCCTCACGGTGCTGGAGCTCTTTGACTACGCCTACGAGGTC
ATTAAGCACAAGCTGTGCCGACGAGGAAAATGCCAGAAGGAGGCCAAAAGGAGCAGTGCG
GACAAGGGCGTGGCCCTCAGCCTGGACGACGTCAAAAGACACAACCCGTGCGAGAGCCTT
CGGGGCCACCCTGCCGGGATGACATACGCTGCCAACATCCTACCTCACCATCCGGCCCGA
GGCACGTTCGAGGACTTTACCTGCTGA
|
| Protein Properties |
|---|
| Number of Residues
| 528 |
| Molecular Weight
| 59908.9 |
| Theoretical pI
| 5.5 |
| Pfam Domain Function
|
|
| Signals
|
|
|
Transmembrane Regions
|
|
| Protein Sequence
|
>Amiloride-sensitive cation channel 2, neuronal
MELKAEEEEVGGVQPVSIQAFASSSTLHGLAHIFSYERLSLKRALWALCFLGSLAVLLCV
CTERVQYYFHYHHVTKLDEVAASQLTFPAVTLCNLNEFRFSQVSKNDLYHAGELLALLNN
RYEIPDTQMADEKQLEILQDKANFRSFKPKPFNMREFYDRAGHDIRDMLLSCHFRGEVCS
AEDFKVVFTRYGKCYTFNSGRDGRPRLKTMKGGTGNGLEIMLDIQQDEYLPVWGETDETS
FEAGIKVQIHSQDEPPFIDQLGFGVAPGFQTFVACQEQRLIYLPPPWGTCKAVTMDSDLD
FFDSYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDQEY
CVCEMPCNLTRYGKELSMVKIPSKASAKYLAKKFNKSEQYIGENILVLDIFFEVLNYETI
EQKKAYEIAGLLGDIGGQMGLFIGASILTVLELFDYAYEVIKHKLCRRGKCQKEAKRSSA
DKGVALSLDDVKRHNPCESLRGHPAGMTYAANILPHHPARGTFEDFTC
|
| External Links |
|---|
| GenBank ID Protein
| 21536349 |
| UniProtKB/Swiss-Prot ID
| P78348 |
| UniProtKB/Swiss-Prot Entry Name
| ACCN2_HUMAN |
| PDB IDs
|
Not Available |
| GenBank Gene ID
| NM_001095.2 |
| GeneCard ID
| ACCN2 |
| GenAtlas ID
| ACCN2 |
| HGNC ID
| HGNC:100 |
| References |
|---|
| General References
| Not Available |