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SLC5A7

Chr 2q12.3

solute carrier family 5 member 7

Aliases:
hCHT, CHT1, ChT
MANE:
ENST00000264047.3

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Arthrogryposis

    BIALLELIC, autosomal or pseudoautosomal
  • Congenital myaesthenic syndrome

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary neuropathy

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Hereditary neuropathy or pain disorder

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Paediatric motor neuronopathies

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

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Disease associations (Open Targets)

  • Congenital myasthenic syndromes

    0.78
  • Presynaptic congenital myasthenic syndromes

    0.72
  • distal hereditary motor neuropathy type 7

    0.71
  • hereditary motor and sensory neuropathy

    0.37
  • presynaptic congenital myasthenic syndrome

    0.37
  • muscular atrophy

    0.27
  • Charcot-Marie-Tooth disease type 2

    0.27
  • hereditary disease

    0.19
  • distal hereditary motor neuropathy

    0.12
  • prostate cancer

    0.11

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

Protein function (UniProt)

High affinity choline transporter 1

High-affinity Na(+)-coupled choline transmembrane symporter (PubMed:11027560, PubMed:11068039, PubMed:12237312, PubMed:12969261, PubMed:17005849, PubMed:23132865, PubMed:23141292, PubMed:27569547, PubMed:40972734). Functions as an electrogenic, voltage-dependent transporter with variable charge/choline stoichiometry (PubMed:17005849). Choline uptake and choline-induced current is also Cl(-)-dependent where Cl(-) is likely a regulatory ion rather than cotransported ion (PubMed:11068039, PubMed:12237312, PubMed:17005849). Plays a critical role in acetylcholine (ACh) synthesis by taking up the substrate choline from the synaptic cleft into the presynaptic nerve terminals after neurotransmitter release (PubMed:27569547). SLC5A7/CHT1-mediated choline high-affinity transport in cholinergic neurons is the rate-limiting step for production of ACh, thereby facilitating communication by subsequent action potentials (PubMed:11027560). Localized predominantly in presynaptic terminal intracellular organelles, and translocated to the plasma membrane in active form in response to neuronal activity (PubMed:12969261, PubMed:15953352)

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.