Is BSND p.Lys76Glu (c.226A>G) pathogenic?

BSND p.Lys76Glu (c.226A>G) is classified Uncertain significance in BSND (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-16). AlphaMissense: likely benign (0.1662); Very rare (popmax 8.47e-05%, nfe); Associated with Inborn genetic diseases.

What condition is associated with BSND p.Lys76Glu (c.226A>G)?

BSND p.Lys76Glu (c.226A>G) is associated with Inborn genetic diseases (ClinVar).

How common is BSND p.Lys76Glu (c.226A>G) in the general population?

BSND p.Lys76Glu (c.226A>G) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

What do computational predictors say about BSND p.Lys76Glu (c.226A>G)?

AlphaMissense predicts likely benign (score 0.1662) — an in-silico prediction, not a clinical call.

BSND p.Lys76Glu

c.226A>G · VCV4831861

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1662 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1662	likely benign
REVEL	0.352	indeterminate
SaProt	LLR -4.88	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · A>C here scores Δ0.21 · evaluated, not missing
Constraint at this position
Conservation	phyloP 11	GERP 1.2, phastCons 1
Regional constraint	o/e 0.91	unconstrained · MANE · 9,438 bp · p 0.065 · regional, not allelic
Overall
CADD	24.9	PHRED · 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 8.47e-05% European (non-Finnish) · 1/1,179,976 alleles

Overall 6.84e-05% 1/1,461,840 alleles · very rare

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.Lys76Glu
Coding: c.226A>G
MANE Select: NM_057176
Type: single nucleotide variant
Location: chr1:55005070 (GRCh38)
Gene constraint: LOEUF 1.03 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 53.80
Residue 76: a UniProt-annotated variant site (in barts4a); a UniProt-annotated variant site (in barts4a; loss of clcnka and clcnkb channel conductance)

Full BSND gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

BSND p.Ala106Val Uncertain significance ★★ ⚠ same condition
BSND p.Ala160Ser Uncertain significance ★★ ⚠ same condition
BSND p.Ala246Val Uncertain significance ★★ ⚠ same condition
BSND p.Arg30Gln Uncertain significance ★★ ⚠ same condition
BSND p.Asp236Asn Uncertain significance ★★ ⚠ same condition
BSND p.Glu287Ter Uncertain significance ★★ same condition
BSND p.Glu292Lys Uncertain significance ★★ ⚠ same condition
BSND p.Gly22Ser Uncertain significance ★★ ⚠ same condition

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-lys76glu (accessed [today's date]).

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