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ACVR1

Chr 2q24.1

activin A receptor type 1

Aliases:
SKR1, ALK2, ACVR1A
MANE:
ENST00000434821.7

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Fetal anomalies

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Skeletal dysplasia

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Autosomal recessive primary hypertrophic osteoarthropathy

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Intellectual disability

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Ehlers Danlos syndrome with a likely monogenic cause

  • Iron metabolism disorders - NOT common HFE mutations

    BIALLELIC, autosomal or pseudoautosomal
  • Thoracic aortic aneurysm or dissection

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

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Disease associations (Open Targets)

  • fibrodysplasia ossificans progressiva

    0.82
  • myelofibrosis

    0.56
  • neoplasm

    0.53
  • primary myelofibrosis

    0.51
  • neurodegenerative disease

    0.48
  • hereditary disease

    0.47
  • bone disorder

    0.46
  • pancreatic ductal adenocarcinoma

    0.44
  • acquired polycythemia vera

    0.40
  • Splenomegaly

    0.37

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

Protein function (UniProt)

Activin receptor type-1

Bone morphogenetic protein (BMP) type I receptor that is involved in a wide variety of biological processes, including bone, heart, cartilage, nervous, and reproductive system development and regulation (PubMed:20628059, PubMed:22977237). As a type I receptor, forms heterotetrameric receptor complexes with the type II receptors AMHR2, ACVR2A or ACVR2B (PubMed:17911401). Upon binding of ligands such as BMP7 or GDF2/BMP9 to the heteromeric complexes, type II receptors transphosphorylate ACVR1 intracellular domain (PubMed:25354296). In turn, ACVR1 kinase domain is activated and subsequently phosphorylates SMAD1/5/8 proteins that transduce the signal (PubMed:9748228). In addition to its role in mediating BMP pathway-specific signaling, suppresses TGFbeta/activin pathway signaling by interfering with the binding of activin to its type II receptor (PubMed:17911401). Besides canonical SMAD signaling, can activate non-canonical pathways such as p38 mitogen-activated protein kinases/MAPKs (By similarity). May promote the expression of HAMP, potentially via its interaction with BMP6 (By similarity)

Curated MONDO disease pages that list ACVR1 among their top associated genes.

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.