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MINPP1

Chr 10q23.2

multiple inositol-polyphosphate phosphatase 1

Aliases:
MIPP
MANE:
ENST00000371996.9

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Ataxia and cerebellar anomalies - narrow panel

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Severe microcephaly

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited non-medullary thyroid cancer

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Disease associations (Open Targets)

  • pontocerebellar hypoplasia, type 16

    0.76
  • pontocerebellar hypoplasia

    0.66
  • thyroid gland follicular carcinoma

    0.56
  • thyroid cancer, nonmedullary, 2

    0.47
  • neurodegenerative disease

    0.42
  • pontocerebellar hypoplasia type 7

    0.37
  • Non-syndromic pontocerebellar hypoplasia

    0.34
  • Thyroid adenoma

    0.33
  • cutaneous melanoma

    0.25
  • urolithiasis

    0.09

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

Protein function (UniProt)

Multiple inositol polyphosphate phosphatase 1

Multiple inositol polyphosphate phosphatase that hydrolyzes 1D-myo-inositol 1,3,4,5,6-pentakisphosphate (InsP5[2OH]) and 1D-myo-inositol hexakisphosphate (InsP6) to a range of less phosphorylated inositol phosphates. This regulates the availability of these various small molecule second messengers and metal chelators which control many aspects of cell physiology (PubMed:33257696, PubMed:36589890). Has a weak in vitro activity towards 1D-myo-inositol 1,4,5-trisphosphate which is unlikely to be physiologically relevant (PubMed:36589890). By regulating intracellular inositol polyphosphates pools, which act as metal chelators, it may control the availability of intracellular calcium and iron, which are important for proper neuronal development and homeostasis (PubMed:33257696). May have a dual substrate specificity, and function as a 2,3-bisphosphoglycerate 3-phosphatase hydrolyzing 2,3-bisphosphoglycerate to 2-phosphoglycerate. 2,3-bisphosphoglycerate (BPG) is formed as part of the Rapoport-Luebering glycolytic bypass and is a regulator of systemic oxygen homeostasis as the major allosteric effector of hemoglobin (PubMed:18413611)

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.