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- Table of Contents
Facts about Ribonucleoside-diphosphate reductase subunit M2 B.
Includes an iron-tyrosyl free radical center needed for catalysis. Types an active ribonucleotide reductase (RNR) complicated with RRM1 which is expressed both in resting and proliferating cells in response to DNA damage.
Human | |
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Gene Name: | RRM2B |
Uniprot: | Q7LG56 |
Entrez: | 50484 |
Belongs to: |
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ribonucleoside diphosphate reductase small chain family |
EC 1.17.4.1; MGC102856; MGC42116; MTDPS8A; MTDPS8B; p53-inducible ribonucleotide reductase small subunit 2 homolog; p53-inducible ribonucleotide reductase small subunit 2-like protein; p53R2; P53R2DKFZp686M05248; PEOA5; ribonucleoside-diphosphate reductase subunit M2 B; ribonucleotide reductase M2 B (TP53 inducible); RRM2B; TP53-inducible ribonucleotide reductase M2 B
Mass (kDA):
40.737 kDA
Human | |
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Location: | 8q22.3 |
Sequence: | 8; NC_000008.11 (102204501..102238961, complement) |
Widely expressed at a high level in skeletal muscle and at a weak level in thymus. Expressed in epithelial dysplasias and squamous cell carcinoma.
Cytoplasm. Nucleus. Translocates from cytoplasm to nucleus in response to DNA damage.
PMID: 10716435 by Tanaka H., et al. A ribonucleotide reductase gene involved in a p53-dependent cell- cycle checkpoint for DNA damage.
PMID: 11517226 by Guittet O., et al. Mammalian p53R2 protein forms an active ribonucleotide reductase in vitro with the R1 protein, which is expressed both in resting cells in response to DNA damage and in proliferating cells.