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UBA1

Chr Xp11.3

ubiquitin like modifier activating enzyme 1

Aliases:
UBE1X, POC20, CFAP124
MANE:
ENST00000335972.11

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Arthrogryposis

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Autoinflammatory disorders

    Other
  • Fetal anomalies

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Hereditary neuropathy or pain disorder

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Paediatric motor neuronopathies

    X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
  • Primary immunodeficiency or monogenic inflammatory bowel disease

    Other
  • Adult onset neurodegenerative disorder

    X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)

Disease associations (Open Targets)

  • infantile-onset X-linked spinal muscular atrophy

    0.75
  • VEXAS syndrome

    0.74
  • X-linked distal arthrogryposis multiplex congenita

    0.72
  • hereditary disease

    0.42
  • neurodegenerative disease

    0.37
  • dengue disease

    0.37
  • autoimmune disorder of central nervous system

    0.37
  • Alzheimer disease

    0.29
  • Parkinson disease

    0.28
  • multiple sclerosis

    0.28

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

Protein function (UniProt)

Ubiquitin-like modifier-activating enzyme 1

Catalyzes the first step in ubiquitin conjugation to mark cellular proteins for degradation through the ubiquitin-proteasome system (PubMed:1447181, PubMed:1606621, PubMed:33108101). Activates ubiquitin by first adenylating its C-terminal glycine residue with ATP, and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding a ubiquitin-E1 thioester and free AMP (PubMed:1447181). Essential for the formation of radiation-induced foci, timely DNA repair and for response to replication stress. Promotes the recruitment of TP53BP1 and BRCA1 at DNA damage sites (PubMed:22456334)

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.