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BSND p.Tyr98=

c.294T>C · rs1188080726 · VCV876317

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0329%, mid)
Conditions
1
Bartter disease type 4A

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 -11GERP -2.8
Overall
CADD0.109PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0329% Middle Eastern · 2/6,084 alleles
Filtering AF 0.0058% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00241%
Overall 0.00124% 20/1,613,986 alleles · ultra-rare
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0329% 3,042
Admixed American 0.00167% 59,998
European (non-Finnish) 0.00136% 73,752
South Asian 0.0011% 91,088

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.Tyr98=
Coding
c.294T>C
MANE Select
NM_057176
dbSNP
rs1188080726
Type
single nucleotide variant
Location
chr1:55007018 (GRCh38)
Gene constraint
LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 53.80
Residue 98
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)
Full BSND gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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-tyr98 (accessed [today's date]).

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