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MECR

Chr 1p35.3

mitochondrial trans-2-enoyl-CoA reductase

Aliases:
CGI-63, NRBF1, FASN2B, ETR1
MANE:
ENST00000263702.11

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Childhood onset dystonia, chorea or related movement disorder

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset dystonia

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Optic neuropathy

    BIALLELIC, autosomal or pseudoautosomal
  • Possible mitochondrial disorder - nuclear genes

    BIALLELIC, autosomal or pseudoautosomal
  • Structural basal ganglia disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • dystonia, childhood-onset, with optic atrophy and basal ganglia abnormalities

    0.80
  • optic atrophy 16

    0.48
  • neurodegenerative disease

    0.45
  • optic atrophy

    0.39
  • Autosomal recessive isolated optic atrophy

    0.37
  • mitochondrial disease

    0.33
  • nervous system benign neoplasm

    0.28
  • placental abruption

    0.23
  • ankylosing spondylitis

    0.22
  • head injury

    0.22

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

Protein function (UniProt)

Enoyl-[acyl-carrier-protein] reductase, mitochondrial

Catalyzes the NADPH-dependent reduction of trans-2-enoyl thioesters in mitochondrial fatty acid synthesis (fatty acid synthesis type II). Fatty acid chain elongation in mitochondria uses acyl carrier protein (ACP) as an acyl group carrier, but the enzyme accepts both ACP and CoA thioesters as substrates in vitro. Displays a preference for medium-chain over short- and long-chain substrates (PubMed:12654921, PubMed:18479707, PubMed:27817865). May provide the octanoyl chain used for lipoic acid biosynthesis, regulating protein lipoylation and mitochondrial respiratory activity particularly in Purkinje cells (By similarity). Involved in iron homeostasis; affecting Fe-S cluster assembly and ceramide metabolism (PubMed:37653044). Required for proper morphology and bioenergetic functions of mitochondria (PubMed:37653044). Required for maintenance of neurons (By similarity)

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.