Send feedback

BSND p.Ala262fs

c.784del · rs2100209749 · VCV1686527

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Not reported
no gnomAD frequency available for this variant

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDescapespremature termination codon in the last exon (4 of 4) — the truncated protein is likely expressed. PVS1 input, not an applied code
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP -0.2GERP -2.3

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

dbSNP / gnomAD

No gnomAD frequency available for this variant. This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene
BSND
Protein
p.Ala262fs
Coding
c.784del
MANE Select
NM_057176
dbSNP
rs2100209749
Type
Deletion
Location
chr1:55008449 (GRCh38)
Gene constraint
LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 53.80
Residue 262
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

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-ala262fs (accessed [today's date]).

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