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CPT2

Chr 1p32.3

carnitine palmitoyltransferase 2

Aliases:
CPTASE
MANE:
ENST00000371486.4

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Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Acute rhabdomyolysis

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Hyperammonaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Limb girdle muscular dystrophies, myofibrillar myopathies and distal myopathies

    BIALLELIC, autosomal or pseudoautosomal
  • Paediatric or syndromic cardiomyopathy

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Rhabdomyolysis and metabolic muscle disorders

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • carnitine palmitoyl transferase II deficiency, myopathic form

    0.83
  • carnitine palmitoyl transferase II deficiency, severe infantile form

    0.80
  • carnitine palmitoyl transferase II deficiency, neonatal form

    0.77
  • carnitine palmitoyltransferase II deficiency

    0.71
  • hereditary disease

    0.51
  • Acute rhabdomyolysis

    0.49
  • angina pectoris

    0.37
  • cardiovascular disorder

    0.37
  • Abnormality of the musculature

    0.34
  • Seizure

    0.34

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

Protein function (UniProt)

Carnitine O-palmitoyltransferase 2, mitochondrial

Involved in the intramitochondrial synthesis of acylcarnitines from accumulated acyl-CoA metabolites (PubMed:20538056, PubMed:24780397). Reconverts acylcarnitines back into the respective acyl-CoA esters that can then undergo beta-oxidation, an essential step for the mitochondrial uptake of long-chain fatty acids and their subsequent beta-oxidation in the mitochondrion. Active with medium (C8-C12) and long-chain (C14-C18) acyl-CoA esters (PubMed:20538056)

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.