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SLC16A2

Chr Xq13.2

solute carrier family 16 member 2

Aliases:
XPCT, MCT8, MCT7, DXS128E
MANE:
ENST00000587091.6

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Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Childhood onset dystonia, chorea or related movement disorder

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Childhood onset hereditary spastic paraplegia

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Congenital hypothyroidism

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • DDG2P

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Early onset or syndromic epilepsy

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

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Hereditary spastic paraplegia

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

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

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Disease associations (Open Targets)

  • Allan-Herndon-Dudley syndrome

    0.85
  • Spastic paraplegia

    0.55
  • hereditary disease

    0.54
  • neurodegenerative disease

    0.42
  • Intellectual disability

    0.35
  • Hypotonia

    0.34
  • hereditary spastic paraplegia

    0.32
  • Decreased activity of the pyruvate dehydrogenase complex

    0.27
  • prostate cancer

    0.11
  • Familial prostate cancer

    0.11

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

Protein function (UniProt)

Monocarboxylate transporter 8

Specific thyroid hormone transmembrane transporter, that mediates both uptake and efflux of thyroid hormones across the cell membrane independently of pH or a Na(+) gradient. Major substrates are the iodothyronines T3 and T4 and to a lesser extent rT3 and 3,3-diiodothyronine (3,3'-T2) (PubMed:16887882, PubMed:18337592, PubMed:20628049, PubMed:23550058, PubMed:27805744, PubMed:31436139, PubMed:26426690, PubMed:38661522, PubMed:40140416, PubMed:40368961, PubMed:40680733). Acts as an important mediator of thyroid hormone transport, especially T3, through the blood-brain barrier (Probable) (PubMed:28526555). Mediates the efflux of 3,5-diiodo-L-tyrosine (DIT) and 3-iodo-L-tyrosine (MIT) (PubMed:38661522)

Curated MONDO disease pages that list SLC16A2 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.