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BSND p.Gly47=

c.141G>C · rs76222905 · VCV722781

Benign/Likely benign Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 5 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0691%, nfe)
Conditions
1
Bartter syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 1.4GERP -0.91, phastCons 1
Overall
CADD9.101PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0691% European (non-Finnish) · 815/1,179,250 alleles
Filtering AF 0.0651% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0636%
Overall 0.0613% 989/1,613,094 alleles · ultra-rare
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 0.175% 570
Remaining individualsnot grpmax-eligible 0.0769% 1,301
European (non-Finnish)grpmax 0.0691% 1,447
African / African-American 0.0107% 9,378
Ashkenazi Jewishnot grpmax-eligible 0.00676% 14,800
Admixed American 0.00667% 15,001

Finnish 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.Gly47=
Coding
c.141G>C
MANE Select
NM_057176
dbSNP
rs76222905
Type
single nucleotide variant
Location
chr1:54999327 (GRCh38)
Gene constraint
LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 53.80
Residue 47
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; atypical; decreases the number of channels; almost complete loss of ion conductance); the 'regulates channel membrane trafficking and ion conductance' 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-gly47 (accessed [today's date]).

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