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FLVCR1

Chr 1q32.3

FLVCR choline and heme transporter 1

Aliases:
FLVCR, MFSD7B, PCA, SLC49A1
MANE:
ENST00000366971.9

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Ataxia and cerebellar anomalies - narrow panel

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood onset hereditary spastic paraplegia

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary ataxia

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary ataxia with onset in adulthood

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary neuropathy

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • Posterior column ataxia - retinitis pigmentosa

    0.79
  • posterior column ataxia-retinitis pigmentosa syndrome

    0.78
  • neurodevelopmental disorder with microcephaly, absent speech, and hypotonia

    0.70
  • retinitis pigmentosa

    0.51
  • hereditary disease

    0.50
  • Retinal dystrophy

    0.47
  • neurodegenerative disease

    0.42
  • FLVCR1-related retinopathy with or without ataxia

    0.37
  • hereditary sensory and autonomic neuropathy

    0.27
  • Jeune syndrome

    0.26

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

Protein function (UniProt)

Choline/ethanolamine transporter FLVCR1

Uniporter that mediates the transport of extracellular choline and ethanolamine into cells, thereby playing a key role in phospholipid biosynthesis (PubMed:37100056, PubMed:38693265, PubMed:38778100, PubMed:39306721, PubMed:40972734). Choline and ethanolamine are the precursors of phosphatidylcholine and phosphatidylethanolamine, respectively, the two most abundant phospholipids (PubMed:38693265, PubMed:38778100). Transport is not coupled with proton transport and is exclusively driven by the choline (or ethanolamine) gradient across the plasma membrane (PubMed:38693265, PubMed:38778100). Also acts as a heme b transporter that mediates heme efflux from the cytoplasm to the extracellular compartment (PubMed:15369674, PubMed:20610401, PubMed:22483575, PubMed:23187127, PubMed:27923065)

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.