Interstitial lung disease due to ABCA3 deficiency: genes and variants
Interstitial lung disease due to ABCA3 deficiency is linked to 1 analyzed protein (ABCA3). 30 DNA variants are known to cause it; 106 more are uncertain, and 0 of those already look disease-causing on computable evidence.
Last updated 2026-09-30. Research information, not medical advice.
Genes linked to Interstitial lung disease due to ABCA3 deficiency
ABCA3: Phospholipid-transporting ATPase ABCA3
It transports phospholipids into lamellar bodies of alveolar type II cells, supporting pulmonary surfactant assembly and normal gas exchange. Biallelic loss-of-function variants can cause neonatal respiratory failure or childhood interstitial lung disease.
30 disease-causing and 106 uncertain variants in ABCA3 are linked to Interstitial lung disease due to ABCA3 deficiency.
Known disease-causing variants in Interstitial lung disease due to ABCA3 deficiency
| Variant | Position | Protein part | Clinical label |
|---|---|---|---|
| ABCA3 R43C | 43 | Disease-causing (★★) | |
| ABCA3 R43H | 43 | Disease-causing (★★) | |
| ABCA3 P248L | 248 | Disease-causing (★★) | |
| ABCA3 R155W | 155 | Disease-causing (★★) | |
| ABCA3 K914R | 914 | Disease-causing (★★) | |
| ABCA3 G1421R | 1421 | ABC transporter 2 | Disease-causing (★★) |
| ABCA3 R1550W | 1550 | ABC transporter 2 | Disease-causing (★★) |
| ABCA3 E1364K | 1364 | Disease-causing (★★) | |
| ABCA3 W179C | 179 | Disease-causing (★★) | |
| ABCA3 P186L | 186 | Disease-causing (★★) | |
| ABCA3 R208W | 208 | Disease-causing (★★) | |
| ABCA3 S1049P | 1049 | Disease-causing (★★) | |
| ABCA3 T1114M | 1114 | Transmembrane | Disease-causing (★★) |
| ABCA3 V1399M | 1399 | ABC transporter 2 | Disease-causing (★★) |
| ABCA3 G202R | 202 | Disease-causing (★★) | |
| ABCA3 A1070T | 1070 | Disease-causing (★★) | |
| ABCA3 S1116F | 1116 | Transmembrane | Disease-causing (★★) |
| ABCA3 G964S | 964 | Disease-causing (★★) | |
| ABCA3 F1077I | 1077 | Disease-causing (★★) | |
| ABCA3 P248S | 248 | Disease-causing (★) | |
| ABCA3 D253H | 253 | Disease-causing (★) | |
| ABCA3 P249L | 249 | Disease-causing (★) | |
| ABCA3 G1302E | 1302 | Disease-causing (★) | |
| ABCA3 W78S | 78 | Disease-causing (★) | |
| ABCA3 L437P | 437 | Disease-causing (★) | |
| ABCA3 N568D | 568 | ABC transporter 1 | Disease-causing |
| ABCA3 L1226P | 1226 | Transmembrane | Disease-causing |
| ABCA3 Q1591P | 1591 | ABC transporter 2 | Disease-causing |
| ABCA3 L1553P | 1553 | ABC transporter 2 | Disease-causing |
| ABCA3 L101P | 101 | Disease-causing |
Which prediction tools work for Interstitial lung disease due to ABCA3 deficiency
How often each tool ranks a disease-causing variant above a harmless one (AUROC × 100).
- MetaLR: 100 out of 100 (learned from overlapping clinical labels, so this is optimistic)
- phyloP: 98 out of 100
- CATVariant: 98 out of 100 (learned from overlapping clinical labels, so this is optimistic)
- CADD: 97 out of 100
- PolyPhen-2: 96 out of 100 (learned from overlapping clinical labels, so this is optimistic)
- SIFT: 95 out of 100
- REVEL: 95 out of 100 (learned from overlapping clinical labels, so this is optimistic)
Same protein, different disease
- Hereditary pulmonary alveolar proteinosis is also caused by ABCA3 variants; they fall mostly in different places as the Interstitial lung disease due to ABCA3 deficiency variants (12 disease-causing).
Diseases related to Interstitial lung disease due to ABCA3 deficiency
- Loeys-Dietz syndrome, also linked to ABCA3
- Hereditary pulmonary alveolar proteinosis, also linked to ABCA3
- Surfactant metabolism dysfunction, pulmonary, 1, also linked to ABCA3
- Interstitial lung disease, also linked to ABCA3
Frequently asked questions
Which genes are linked to Interstitial lung disease due to ABCA3 deficiency?
In CATVariant, Interstitial lung disease due to ABCA3 deficiency is linked to 1 analyzed protein: ABCA3 (Phospholipid-transporting ATPase ABCA3).
How many genetic variants are linked to Interstitial lung disease due to ABCA3 deficiency?
141 variants: 30 are classified as disease-causing (pathogenic or likely pathogenic) in ClinVar and 106 are of uncertain significance or have conflicting reports.
Which uncertain variants in Interstitial lung disease due to ABCA3 deficiency look disease-causing?
None of the uncertain variants currently reaches the likely-pathogenic range on computable evidence alone.
Which variant effect predictor works best for Interstitial lung disease due to ABCA3 deficiency?
Among tools not trained on clinical labels, phyloP separates this disease's known disease-causing variants from harmless ones best (AUROC 0.98, based on 23 disease-causing and 22 harmless variants).
About this data
Variant–disease links come from ClinVar, Open Targets and UniProt, pooled from the latest public CATVariant analysis of each human protein. Evidence scores use the ACMG/AMP Bayesian points scale with computable criteria only (position among known disease variants, rarity in gnomAD, calibrated predictors, deep mutational scanning); there is no family or patient data, so they prioritise variants for expert review and never classify them.
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