NALCN - sodium leak channel, non-selective Gene
Also Known as IHPRF; INNFD; CanIon; IHPRF1; VGCNL1; CLIFAHDD; bA430M15.1
Species: Homo sapiens
About NALCN
This gene has 18 transcripts (splice variants), 212 orthologues, 26 paralogues and is associated with 9 phenotypes. Biased expression in brain (RPKM 11.1), adrenal (RPKM 2.5) and 5 other tissues.
Summary
This gene encodes a voltage-independent, nonselective cation channel which belongs to a family of voltage-gated sodium and calcium channels that regulates the resting membrane potential and excitability of neurons. This family is expressed throughout the nervous system and conducts a persistent sodium leak current that contributes to tonic neuronal excitability. The encoded protein forms a channelosome complex that includes G-protein-coupled receptors, UNC-79, UNC-80, NCA localization factor-1, and Src family tyrosine kinases. Naturally occurring mutations in this gene are associated with infantile neuroaxonal dystrophy, infantile hypotonia with psychomotor retardation and characteristic facies (IHPRF) syndrome, and congenital contractures of the limbs and face with hypotonia and developmental delay (CLIFAHDD) syndrome. A knockout of the orthologous gene in mice results in paralysis with a severely disrupted respiratory rhythm, and lethality within 24 hours after birth. [provided by RefSeq, Apr 2017]
NALCN Products (5)
| mRNA | Protein | Name |
|---|---|---|
| NM_001350748.2 | NP_001337677.1 | sodium leak channel NALCN isoform 1 |
| NM_001350749.2 | NP_001337678.1 | sodium leak channel NALCN isoform 2 |
| NM_001350750.2 | NP_001337679.1 | sodium leak channel NALCN isoform 3 |
| NM_001350751.2 | NP_001337680.1 | sodium leak channel NALCN isoform 3 |
| NM_052867.4 | NP_443099.1 | sodium leak channel NALCN isoform 2 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
19575010 | GOA |
| enables voltage-gated sodium channel activity |
IDA
IDA: Inferred from direct assay
|
32698188 | GOA |
| enables voltage-gated sodium channel activity |
IMP
IMP: Inferred from mutant phenotype
|
32494638 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
31409833 | GOA |
NALCN Protein Structure
Ion_trans: Ion transport protein (74 - 321)
Ion_trans: Ion transport protein (421 - 598)
Ion_trans: Ion transport protein (920 - 1155)
Ion_trans: Ion transport protein (1244 - 1446)
- 0
- 300
- 600
- 900
- 1200
- 1500
- 1738 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
sodium leak channel NALCN |
|
NALCN Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
NALCN | Q8IZF0 | CHRM3 | Homo sapiens | P20309 | 19575010 | |
|
Intra
|
NALCN | Q8IZF0 | MEOX2 | Homo sapiens | P50222 | 25416956 | |
|
Intra
|
NALCN | Q8IZF0 | MEOX2 | Homo sapiens | P50222 | 25416956 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Congenital Contractures Of The Limbs And Face, Hypotonia, And Developmental Delay |
|
|
| Hypotonia, Infantile, With Psychomotor Retardation And Characteristic Facies 1 |
|
|
| Strabismus |
|
|
| Arthrogryposis, Distal, Type 2a |
|
|
| Hypotonia-Speech Impairment-Severe Cognitive Delay Syndrome |
|
|
| Nervous System Disease |
|
|
| Congenital Nervous System Abnormality |
|
|
| Arthrogryposis, Distal, Type 2b1 |
|
|
| Arthrogryposis, Distal, Type 1a |
|
|
| Neuroaxonal Dystrophy |
|
|
| Congenital Contractures |
|
|
| Distal Arthrogryposis |
|
|
| Hypotonia, Infantile, With Psychomotor Retardation |
|
|
| Subacute Delirium |
|
|
| Developmental And Epileptic Encephalopathy 11 |
|
|
| Fetal Akinesia Deformation Sequence 1 |
|
|
| Hypotonia |
|
|
| Combined Oxidative Phosphorylation Deficiency 30 |
|
|
| Treacher Collins Syndrome 3 |
|
|
| Corneal Dystrophy, Endothelial, X-Linked |
|
|
| Episodic Ataxia, Type 8 |
|
|
| Cold-Induced Sweating Syndrome |
|
|
| Constipation |
|
|
| Cervical Dystonia |
|
|
| Combined Oxidative Phosphorylation Deficiency 6 |
|
|
| Bosch-Boonstra-Schaaf Optic Atrophy Syndrome |
|
|
| Schaaf-Yang Syndrome |
|
|
| Corneal Dystrophy, Posterior Polymorphous, 1 |
|
|
| Multiple Pterygium Syndrome, Escobar Variant |
|
|
| Central Sleep Apnea |
|
|
| Advanced Sleep Phase Syndrome |
|
|
| Episodic Ataxia |
|
|
| Noonan Syndrome 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | NALCN | MGD | MGI:2444306 |
| Rattus norvegicus | NALCN | RGD | RGD:628710 |
| Felis catus | NALCN | VGNC | VGNC:63717 |
| Macaca mulatta | NALCN | VGNC | VGNC:74991 |
| Bos taurus | NALCN | VGNC | VGNC:31874 |
| Canis familiaris | NALCN | VGNC | VGNC:43613 |
| Others | NALCN | NCBI |