AlphaFold predicted structure
SCNN1B · P51168

Mean pLDDT
82.4/ 100
Confident
640 residues
Confidence breakdown
- Very high(≥ 90)53%
- Confident(70–90)26%
- Low(50–70)12%
- Very low(< 50)8%
AlphaFold (Jumper et al., 2021) · CC BY 4.0
sodium channel epithelial 1 subunit beta
Annotations refreshed 1 month ago.
Diagnostic Grade (Green)
Extreme early-onset hypertension
BOTH monoallelic and biallelic, autosomal or pseudoautosomalNon-CF bronchiectasis
BOTH monoallelic and biallelic, autosomal or pseudoautosomalRenal tubulopathies
BOTH monoallelic and biallelic, autosomal or pseudoautosomalRespiratory ciliopathies including non-CF bronchiectasis
BOTH monoallelic and biallelic, autosomal or pseudoautosomalFetal anomalies
BIALLELIC, autosomal or pseudoautosomalFamilial pulmonary fibrosis
Primary ciliary disorders
Rare multisystem ciliopathy disorders
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bronchiectasis with or without elevated sweat chloride 1
Liddle syndrome 1
pseudohypoaldosteronism, type IB2, autosomal recessive
pseudohypoaldosteronism, type IB1, autosomal recessive
Generalized pseudohypoaldosteronism type 1
hypertensive disorder
Liddle syndrome
idiopathic bronchiectasis
congestive heart failure
cardiac arrhythmia
Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.
Epithelial sodium channel subunit beta
This is one of the three pore-forming subunits of the heterotrimeric epithelial sodium channel (ENaC), a critical regulator of sodium balance and fluid homeostasis (PubMed:30251954, PubMed:32729833, PubMed:7762608, PubMed:9792722). ENaC operates in epithelial tissues, where it mediates the electrodiffusion of sodium ions from extracellular fluid through the apical membrane of cells, with water following osmotically (PubMed:24124190). It plays a key role in maintaining sodium homeostasis through electrogenic sodium reabsorption in the kidneys (PubMed:12107247). Additionally, ENaC is essential for airway surface liquid homeostasis, which is crucial for proper mucus clearance (PubMed:24124190)
Curated MONDO disease pages that list SCNN1B among their top associated genes.
SCNN1B · P51168

Mean pLDDT
82.4/ 100
Confident
640 residues
Confidence breakdown
AlphaFold (Jumper et al., 2021) · CC BY 4.0