Rrm2b Gene Summary [Rat]

Predicted to enable identical protein binding activity and ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor. Involved in response to amine. Predicted to be located in nucleoplasm. Predicted to be active in cytosol. Human ortholog(s) of this gene implicated in autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions 5; mitochondrial DNA depletion syndrome 8a; and mitochondrial DNA depletion syndrome 8b. Orthologous to human RRM2B (ribonucleotide reductase regulatory TP53 inducible subunit M2B). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Protein Coding
Official Symbol
Rrm2b
Official Name
ribonucleotide reductase regulatory TP53 inducible subunit M2B [Source:RGD Symbol;Acc:1306045]
Ensembl ID
ENSRNOG00000025454
Bio databases IDs NCBI: 299976 Ensembl: ENSRNOG00000025454
Aliases ribonucleotide reductase regulatory TP53 inducible subunit M2B
Synonyms MGC42116, MTDPS8A, MTDPS8B, P53R2, RCDFRD, Ribonucleotide Reductase M2 B (TP53 Inducible), ribonucleotide reductase regulatory TP53 inducible subunit M2B
Species
Rat, Rattus norvegicus
OrthologiesHumanMouse

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in rat Rrm2b often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • ribonucleoside-diphosphate reductase
  • nuclear localization sequence
  • enzyme
  • protein binding
  • identical protein binding
  • Ferritin-like superfamily of diiron-containing four-helix-bundle proteins

Pathways

Biological processes and signaling networks where the Rrm2b gene in rat plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • pain
  • neoplasia
  • Langerhans cell histiocytosis
  • Waldenström macroglobulinemia
  • multiple sclerosis
  • relapsing-remitting multiple sclerosis
  • cardiac fibrosis
  • acute myeloid leukemia
  • cervical squamous cell carcinoma
  • chronic lymphocytic leukemia
regulated by
  • lipopolysaccharide
  • gemcitabine
  • TP53
  • TNF
  • deferoxamine
  • CPI203
  • ATM
  • doxifluridine
  • RRM2B
  • prexasertib
regulates
  • reactive oxygen species
  • TP53
  • CDKN1A
  • blood urea nitrogen
  • dNTP
  • RRM2B
  • mitochondrial DNA
  • RRM1
  • dCTP
  • deoxyribonucleotide
role in cell
  • expression in
  • growth
  • apoptosis
  • cell death
  • degradation in
  • survival
  • function
  • homologous recombination repair in
  • mutagenesis
  • immortalization

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • Cytoplasm
  • perinuclear region
  • cytosol
  • nucleoplasm

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the rat Rrm2b gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • ribonucleoside diphosphate metabolic process
  • DNA repair
  • deoxyribonucleoside triphosphate metabolic process
  • 2'-deoxyribonucleotide biosynthetic process
  • response to amine stimulus
  • deoxyribonucleotide biosynthetic process
  • mitochondrial DNA replication
  • DNA synthesis involved in DNA repair
  • renal system process
  • response to oxidative stress
  • kidney development
  • positive regulation of G0 to G1 transition
  • positive regulation of G2/M transition of mitotic cell cycle

Cellular Component

Where in the cell the gene product is active
  • mitochondrion
  • cytosol
  • ribonucleoside-diphosphate reductase complex
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • identical protein binding
  • protein binding
  • ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor
  • metal ion binding