Send feedback

BSND p.Pro182Ser

c.544C>T · VCV4063927

Uncertain significance No assertion criteria
Classification
Uncertain significance
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.0809 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 8.53e-05%, nfe)
Missense predictors
0/3 damaging
AlphaMissense, REVEL, SaProt
Conditions
1
Bartter syndrome

Computational evidence

Protein change
AlphaMissense0.0809likely benign
REVEL0.071moderately benign-leaning
SaProtLLR -6.75tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP 0.8GERP -0.36, phastCons 0.1
Regional constrainto/e 0.91unconstrained · MANE · 9,438 bp · p 0.065 · regional, not allelic
Overall
CADD10.39PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 8.53e-05% European (non-Finnish) · 1/1,172,236 alleles
Overall 0.000125% 2/1,602,352 alleles · very rare exomes 2/1,450,254 · genomes 0/152,098 · joint denominator
Ancestry group Frequency 1 in
Ashkenazi Jewishnot grpmax-eligible 0.00345% 28,944
European (non-Finnish)grpmax 8.53e-05% 1,172,235

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene
BSND
Protein
p.Pro182Ser
Coding
c.544C>T
MANE Select
NM_057176
Type
single nucleotide variant
Location
chr1:55007268 (GRCh38)
Gene constraint
LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 53.80
Residue 182
a UniProt-annotated variant site (in barts4a); a UniProt-annotated variant site (in barts4a; loss of clcnka and clcnkb channel conductance); a UniProt-annotated variant site (in barts4a; abolishes the preferential sorting at the basolateral membrane domain; no effect on ion conductance); the 'disordered' region
Full BSND gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Bartter syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Bartter syndrome (Orphanet):

Inheritance
Autosomal dominant, Autosomal recessive, X-linked recessive
Onset
Adolescent, Adult, Antenatal, Childhood, Infancy, Neonatal
Prevalence
1-9 / 1 000 000 (Europe)

Similar variants

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/bsnd-p-pro182ser (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown