BSND p.Ala156=
c.468C>G · rs755249026 · VCV1133501
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00223%, eas)
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 | ||
| Conservation | phyloP 0.95 | GERP 0.38 |
| Overall | ||
| CADD | 10.85 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00223%
East Asian · 1/44,880 alleles
Filtering AF
0.000247%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000159%
Overall
0.000547%
8/1,461,870 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00223% | 44,880 |
| European (non-Finnish) | 0.000593% | 168,574 |
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.Ala156=
- Coding
- c.468C>G
- MANE Select
- NM_057176
- dbSNP
- rs755249026
- Type
- single nucleotide variant
- Location
- chr1:55007192 (GRCh38)
- Gene constraint
- LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 53.80
- Residue 156
- 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)
Similar variants
- BSND p.Ala156Asp Uncertain significance ★★ ⚠ same residue
- BSND p.Ala156fs Likely pathogenic ★ same residue
- BSND c.178-2A>C Likely pathogenic ★★ same type
- BSND c.272+1G>T Pathogenic/Likely pathogenic ★★ same type
- BSND p.Arg8Trp Pathogenic/Likely pathogenic ★★ same type
- BSND p.Gln95Ter Pathogenic/Likely pathogenic ★★ same type
- BSND p.Glu148Ter Pathogenic/Likely pathogenic ★★ same type
- BSND p.Glu4Ter Pathogenic ★★ same type
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-ala156 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown