Is ABCA3 p.Gln236Ter (c.706C>T) pathogenic?

ABCA3 p.Gln236Ter (c.706C>T) is classified Pathogenic in ABCA3 (ClinVar, Single submitter, 1 submitter; last evaluated 2026-05-11). Very rare (popmax 0.00134%, afr); Associated with interstitial lung disease due to ABCA3 deficiency.

What condition is associated with ABCA3 p.Gln236Ter (c.706C>T)?

ABCA3 p.Gln236Ter (c.706C>T) is associated with interstitial lung disease due to ABCA3 deficiency (ClinVar).

How common is ABCA3 p.Gln236Ter (c.706C>T) in the general population?

ABCA3 p.Gln236Ter (c.706C>T) is very rare (popmax 0.00134%, afr) (gnomAD).

ABCA3 p.Gln236Ter

Q: How is Interstitial lung disease due to ABCA3 deficiency inherited?

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

c.706C>T · VCV4853309

Pathogenic Single submitter

Classification

Pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 0.00134%, afr)

Conditions

interstitial lung disease due to ABCA3 deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function
NMD	predicted	premature termination codon in exon 8 of 33
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.78	GERP -3.7, phastCons 0.2
Overall
CADD	35.0	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00134% African / African-American · 1/74,900 alleles

Overall 0.000658% 1/152,068 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: ABCA3
Protein: p.Gln236Ter
Coding: c.706C>T
MANE Select: NM_001089
Type: single nucleotide variant
Location: chr16:2319748 (GRCh38)
Gene constraint: LOEUF 0.612 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.00 · 2 PDB
Residue 236: an α-helix

Full ABCA3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

interstitial lung disease due to ABCA3 deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Interstitial lung disease due to ABCA3 deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy, Neonatal

Similar variants

ABCA3 c.1112-20G>A Likely pathogenic ★★ same condition
ABCA3 c.2414+1G>A Likely pathogenic ★★ same condition
ABCA3 c.3863-98C>T Pathogenic ★★ same condition
ABCA3 c.614-2A>G Likely pathogenic ★★ same condition
ABCA3 p.Ala1070Thr Likely pathogenic ★★ ⚠ same condition
ABCA3 p.Arg1550Trp Likely pathogenic ★★ same condition
ABCA3 p.Arg155Trp Likely pathogenic ★★ same condition
ABCA3 p.Arg208Trp Pathogenic/Likely 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/abca3-p-gln236ter (accessed [today's date]).

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