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ABCA3

Chr 16p13.3

ATP binding cassette subfamily A member 3

Aliases:
ABC-C, EST111653, LBM180
MANE:
ENST00000301732.10

Annotations refreshed 9 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Childhood interstitial lung disease

    BIALLELIC, autosomal or pseudoautosomal
  • Familial pulmonary fibrosis

    BIALLELIC, autosomal or pseudoautosomal
  • Pulmonary fibrosis familial

    BIALLELIC, autosomal or pseudoautosomal
  • Corneal abnormalities

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Disease associations (Open Targets)

  • Neonatal acute respiratory distress with surfactant metabolism deficiency

    0.85
  • Congenital pulmonary alveolar proteinosis

    0.84
  • hereditary pulmonary alveolar proteinosis

    0.56
  • newborn respiratory distress syndrome

    0.48
  • Primary interstitial lung disease specific to childhood due to pulmonary surfactant protein anomalies

    0.45
  • neurodegenerative disease

    0.42
  • idiopathic pulmonary fibrosis

    0.41
  • interstitial lung disease

    0.39
  • carbamoyl phosphate synthetase I deficiency disease

    0.27
  • Loeys-Dietz syndrome

    0.27

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Phospholipid-transporting ATPase ABCA3

Catalyzes the ATP-dependent transport of phospholipids such as phosphatidylcholine and phosphoglycerol from the cytoplasm into the lumen side of lamellar bodies, in turn participates in the lamellar bodies biogenesis and homeostasis of pulmonary surfactant (PubMed:16959783, PubMed:17574245, PubMed:27177387, PubMed:28887056, PubMed:31473345). Transports preferentially phosphatidylcholine containing short acyl chains (PubMed:27177387). In addition plays a role as an efflux transporter of miltefosine across macrophage membranes and free cholesterol (FC) through intralumenal vesicles by removing FC from the cell as a component of surfactant and protects cells from free cholesterol toxicity (PubMed:25817392, PubMed:26903515, PubMed:27177387)

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.