TOPBP1 Required for DNA replication. Plays a role in the rescue of stalled replication forks and checkpoint control. Binds double-stranded DNA breaks and nicks as well as single-stranded DNA. Recruits the SWI/SNF chromatin remodeling complex to E2F1-responsive promoters. Down-regulates E2F1 activity and inhibits E2F1-dependent apoptosis during G1/S transition and after DNA damage. Induces a large increase in the kinase activity of ATR. Highly expressed in heart, brain, placenta, lung and kidney. Note: This description may include information from UniProtKB.
Protein type: DNA replication
Chromosomal Location of mouse Ortholog: 9|9 F1
Cellular Component:  actin cytoskeleton; BRCA1-B complex; chromosome; condensed nuclear chromosome; cytoplasm; cytoskeleton; male germ cell nucleus; nuclear body; nucleoplasm; nucleus; plasma membrane; PML body
Molecular Function:  DNA binding; identical protein binding
Biological Process:  DNA damage response; DNA repair; DNA replication initiation; homologous recombination; mitotic DNA replication checkpoint signaling; mitotic G2 DNA damage checkpoint signaling; reciprocal meiotic recombination; response to ionizing radiation
Reference #:  Q6ZQF0 (UniProtKB)
Alt. Names/Synonyms: 1110031N14Rik; 2810429C13Rik; AI256758; D430026L04Rik; DNA topoisomerase 2-binding protein 1; DNA topoisomerase II-beta-binding protein 1; DNA topoisomerase II-binding protein 1; Kiaa0259; mKIAA0259; TOPB1; TopBP1; topoisomerase (DNA) II beta binding protein; topoisomerase (DNA) II binding protein 1
Gene Symbols: Topbp1
Molecular weight: 168,860 Da
Basal Isoelectric point: 6.22  Predict pI for various phosphorylation states
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TOPBP1

Protein Structure Not Found.


Cross-references to other databases:  AlphaFold  |  STRING  |  BioGPS  |  Pfam  |  RCSB PDB  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein