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PPA2

Chr 4q24

inorganic pyrophosphatase 2

Aliases:
FLJ20459
MANE:
ENST00000341695.10

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Dilated and arrhythmogenic cardiomyopathy

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Paediatric or syndromic cardiomyopathy

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

    BIALLELIC, autosomal or pseudoautosomal
  • Sudden death in young people

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • sudden cardiac arrest

    0.80
  • neurodegenerative disease

    0.53
  • hereditary disease

    0.51
  • Abnormality of the cardiovascular system

    0.41
  • dilated cardiomyopathy

    0.37
  • smoking initiation

    0.37
  • secondary malignant neoplasm

    0.31
  • irritable bowel syndrome

    0.25
  • multiple sclerosis

    0.24
  • Alzheimer disease

    0.22

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

Protein function (UniProt)

Inorganic pyrophosphatase 2, mitochondrial

Hydrolyzes inorganic pyrophosphate (PubMed:27523597). This activity is essential for correct regulation of mitochondrial membrane potential, and mitochondrial organization and function (PubMed:27523598)

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.