Skip to content
GenoLensGenoLens

RRM2B

Chr 8q22.3

ribonucleotide reductase regulatory TP53 inducible subunit M2B

Aliases:
p53R2
MANE:
ENST00000251810.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Gastrointestinal neuromuscular disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited white matter disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Mitochondrial DNA maintenance disorder

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal

+13 more panels — install the extension to see the full list inline on any page.

Disease associations (Open Targets)

  • mitochondrial DNA depletion syndrome 8a

    0.84
  • Mitochondrial DNA depletion syndrome, encephalomyopathic form with renal tubulopathy

    0.82
  • mitochondrial dna depletion syndrome 8b (mngie type)

    0.78
  • progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 5

    0.73
  • rod-cone dystrophy, sensorineural deafness, and Fanconi-type renal dysfunction

    0.69
  • mitochondrial DNA depletion syndrome, encephalomyopathic form

    0.67
  • autosomal dominant progressive external ophthalmoplegia

    0.65
  • non-small cell lung carcinoma

    0.60
  • sickle cell disease

    0.59
  • B-cell chronic lymphocytic leukemia

    0.59

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

Protein function (UniProt)

Ribonucleoside-diphosphate reductase subunit M2 B

Plays a pivotal role in cell survival by repairing damaged DNA in a p53/TP53-dependent manner. Supplies deoxyribonucleotides for DNA repair in cells arrested at G1 or G2. Contains an iron-tyrosyl free radical center required for catalysis. Forms an active ribonucleotide reductase (RNR) complex with RRM1 which is expressed both in resting and proliferating cells in response to DNA damage

Curated MONDO disease pages that list RRM2B 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.