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Anti-p53R2/RRM2B Antibody Picoband® Fluoro488 Conjugated

Product Specifications

Background

RRM2B (Ribonucleotide Reductase, M2 B), also known as P53R2, is an enzyme that in humans is encoded by the RRM2B gene. Tanaka et al. (2000) mapped the p53R2 gene to chromosome 8q23.1 by fluorescence in situ hybridization. Tanaka et al. (2000) found that expression of p53R2, but not R2, was induced by ultraviolet and gamma-irradiation and adriamycin treatment in a wildtype p53-dependent manner. Induction of p53R2 in p53-deficient cells caused G2/M arrest and protected cells from death in response to adriamycin. Inhibition of endogenous p53R2 expression in cells that had an intact p53-dependent DNA damage checkpoint reduced ribonucleotide reductase activity, DNA repair, and cell survival after exposure to various genotoxins.

Synonyms

Ribonucleoside-diphosphate reductase subunit M2 B;1.17.4.1; TP53-inducible ribonucleotide reductase M2 B; p53-inducible ribonucleotide reductase small subunit 2-like protein; p53R2; RRM2B; P53R2

Gene Name

RRM2B

Gene ID

50484

UniProt

Q7LG56

Host

Rabbit

Reactivity

Rat, Mouse, Human

Cross Reactivity

No cross-reactivity with other proteins

Immunogen

A synthetic peptide corresponding to a sequence at the C-terminus of human p53R2, identical to the related rat and mouse sequences.

Clonality

Polyclonal

Tissue Specificity

Widely expressed at a high level in skeletal muscle and at a weak level in thymus. Expressed in epithelial dysplasias and squamous cell carcinoma. .

Applications

Flow Cytometry

Field of Research

DNA/RNA, DNA Damage & Repair, DNA Damage Response, Epigenetics and Nuclear Signaling, Metabolic Signaling Pathways, Metabolism, Nucleotide Metabolism, Oncoproteins/Suppressors, p53 Pathway, Pathways and Processes, Tumor Suppressors

Purification

Immunogen affinity purified.

Form

Liquid

Function

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. .

References & Citations

1. Kimura, T., Takeda, S., Sagiya, Y., Gotoh, M., Nakamura, Y., Arakawa, H. Impaired function of p53R2 in Rrm2b-null mice causes severe renal failure through attenuation of dNTP pools. Nature Genet. 34: 440-445, 2003. 2. Kollberg, G., Darin, N., Benan, K., Moslemi, A.-R., Lindal, S., Tulinius, M., Oldfors, A., Holme, E. A novel homozygous RRM2B missense mutation in association with severe mtDNA depletion. Neuromusc. Disord. 19: 147-150, 2009. 3. Takata, A., Kato, M., Nakamura, M., Yoshikawa, T., Kanba, S., Sano, A., Kato, T. Exome sequencing identifies a novel missense variant in RRM2B associated with autosomal recessive progressive external ophthalmoplegia. Genome Biol. 12: R92, 2011.

Storage Conditions

At -20 ̊C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.

Calculated Molecular Weight

40737 MW

Specificity

No cross reactivity with other proteins.

Applications Notes

6

Gene Name Synonym

Ribonucleoside-diphosphate reductase subunit M2 B

Subcellular Location

Cytoplasm. Nucleus. Translocates from cytoplasm to nucleus in response to DNA damage.

Sequence Similarities

Belongs to the ribonucleoside diphosphate reductase small chain family.

Protein Name

Ribonucleoside-diphosphate reductase subunit M2 B

Isotype

Rabbit IgG

Contents

Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.

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