Is LRBA p.Ala2696= (c.8088G>A) pathogenic?

LRBA p.Ala2696= (c.8088G>A) is classified Benign in LRBA (ClinVar, Multiple submitters, 3 submitters; last evaluated 2026-02-01). Low-frequency (popmax 1.74%, afr); Associated with combined immunodeficiency due to LRBA deficiency.

What condition is associated with LRBA p.Ala2696= (c.8088G>A)?

LRBA p.Ala2696= (c.8088G>A) is associated with combined immunodeficiency due to LRBA deficiency (ClinVar).

How common is LRBA p.Ala2696= (c.8088G>A) in the general population?

LRBA p.Ala2696= (c.8088G>A) is low-frequency (popmax 1.74%, afr) (gnomAD).

LRBA p.Ala2696=

Q: How is Syndromic autoimmune enteropathy due to LRBA deficiency inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

c.8088G>A · rs78563281 · VCV473188

Benign Multiple submitters

Classification

Benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

low-frequency (popmax 1.74%, afr)

Conditions

combined immunodeficiency due to LRBA deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL	0.054	moderately benign-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -6.9	GERP -3.3
Overall
CADD	0.295	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 1.74% African / African-American · 1,301/74,622 alleles

Filtering AF 1.66% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.63%

Overall 0.0931% 1,487/1,596,852 alleles · low-frequency exomes 708/1,444,604 · genomes 779/152,248 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	1.74%	57
Remaining individualsnot grpmax-eligible	0.141%	711
Admixed American	0.125%	801
Middle Eastern	0.0827%	1,210
European (non-Finnish)	0.00188%	53,293
South Asian	0.00114%	87,676

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: LRBA
Protein: p.Ala2696=
Coding: c.8088G>A
MANE Select: NM_001364905
dbSNP: rs78563281
Type: single nucleotide variant
Location: chr4:150285964 (GRCh38)
Gene constraint: LOEUF 0.515 · pLI <0.01 (gnomAD)

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

Disease context

combined immunodeficiency due to LRBA deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Syndromic autoimmune enteropathy due to LRBA deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy

Similar variants

LRBA p.Ala2696Val Uncertain significance ★ same residue
LRBA c.216+1G>C Pathogenic/Likely pathogenic ★★ same condition
LRBA c.2259-2A>G Likely pathogenic ★★ same condition
LRBA c.2767-2A>G Likely pathogenic ★★ same condition
LRBA c.4159-1G>T Likely pathogenic ★★ same condition
LRBA c.5518+2T>C Likely pathogenic ★★ same condition
LRBA c.5519-1G>A Likely pathogenic ★★ same condition
LRBA c.5646-2A>T Pathogenic ★★ 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/lrba-p-ala2696 (accessed [today's date]).

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