RRM2B

Ribonucleotide reductase M2 B (TP53 inducible)

Rendering based on PDB 2VUX.
Identifiers
Symbols RRM2B; DKFZp686M05248; MGC102856; MGC42116; MTDPS8A; MTDPS8B; P53R2
External IDs OMIM604712 MGI2155865 HomoloGene56723 GeneCards: RRM2B Gene
EC number 1.17.4.1
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 50484 382985
Ensembl ENSG00000048392 ENSMUSG00000022292
UniProt Q7LG56 Q6PEE3
RefSeq (mRNA) NM_001172477.1 NM_199476.1
RefSeq (protein) NP_001165948.1 NP_955770.1
Location (UCSC) Chr 8:
103.22 – 103.25 Mb
Chr 15:
37.85 – 37.89 Mb
PubMed search [1] [2]

Ribonucleoside-diphosphate reductase subunit M2 B is an enzyme that in humans is encoded by the RRM2B gene.[1][2][3][4] The gene encoding the RRM2B protein is located on chromosome 8, at position 8q23.1. The gene and its products are also know by designations MTDPS8A, MTDPS8B, and p53R2.

Contents

Interactions

RRM2B has been shown to interact with Mdm2[5] and Ataxia telangiectasia mutated.[5]

Clinical relevance

Mutations in this gene have been shown to cause progressive external ophthalmoplegia.[6] Increased expression of RRM2B has been correlated with gemcitabine resistance in human cholangiocarcinoma cells[7] and may be predictive of lack of clinical benefit from gemcitabine for human cancers.

References

  1. ^ Tanaka H, Arakawa H, Yamaguchi T, Shiraishi K, Fukuda S, Matsui K, Takei Y, Nakamura Y (Apr 2000). "A ribonucleotide reductase gene involved in a p53-dependent cell-cycle checkpoint for DNA damage". Nature 404 (6773): 42–9. doi:10.1038/35003506. PMID 10716435. 
  2. ^ Nakano K, Balint E, Ashcroft M, Vousden KH (Oct 2000). "A ribonucleotide reductase gene is a transcriptional target of p53 and p73". Oncogene 19 (37): 4283–9. doi:10.1038/sj.onc.1203774. PMID 10980602. 
  3. ^ Bourdon A, Minai L, Serre V, Jais JP, Sarzi E, Aubert S, Chretien D, de Lonlay P, Paquis-Flucklinger V, Arakawa H, Nakamura Y, Munnich A, Rotig A (May 2007). "Mutation of RRM2B, encoding p53-controlled ribonucleotide reductase (p53R2), causes severe mitochondrial DNA depletion". Nat Genet 39 (6): 776–80. doi:10.1038/ng2040. PMID 17486094. 
  4. ^ "Entrez Gene: RRM2B ribonucleotide reductase M2 B (TP53 inducible)". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=50484. 
  5. ^ a b Chang L, Zhou B, Hu S, Guo R, Liu X, Jones SN, Yen Y (November 2008). "ATM-mediated serine 72 phosphorylation stabilizes ribonucleotide reductase small subunit p53R2 protein against MDM2 to DNA damage". Proc. Natl. Acad. Sci. U.S.A. 105 (47): 18519–24. doi:10.1073/pnas.0803313105. PMC 2587585. PMID 19015526. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2587585. 
  6. ^ Takata A, Kato M, Nakamura M, Yoshikawa T, Kanba S, Sano A, Kato T (September 2011). "Exome sequencing identifies a novel missense variant in RRM2B associated with autosomal recessive progressive external ophthalmoplegia". Genome Biol. 12 (9): R92. doi:10.1186/gb-2011-12-9-r92. PMID 21951382. 
  7. ^ Sato J, Kimura T, Saito T, Anazawa T, Kenjo A, Sato Y, Tsuchiya T, Gotoh M (September 2011). "Gene expression analysis for predicting gemcitabine resistance in human cholangiocarcinoma". J Hepatobiliary Pancreat Sci 18 (5): 700–11. doi:10.1007/s00534-011-0376-7. PMID 21451941. 

Further reading