TOPBP1

Topoisomerase (DNA) II binding protein 1

Rendering of TOPBP1 from PDB 1WF6
Identifiers
Symbols TOPBP1; TOP2BP1
External IDs OMIM607760 MGI1920018 HomoloGene38262 GeneCards: TOPBP1 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 11073 235559
Ensembl ENSG00000163781 ENSMUSG00000032555
UniProt Q92547 Q6ZQF0
RefSeq (mRNA) NM_007027 NM_176979.5
RefSeq (protein) NP_008958 NP_795953.2
Location (UCSC) Chr 3:
133.32 – 133.38 Mb
Chr 9:
103.21 – 103.25 Mb
PubMed search [1] [2]

DNA topoisomerase 2-binding protein 1 is an enzyme that in humans is encoded by the TOPBP1 gene.[1][2][3]

This gene encodes a binding protein which interacts with the C-terminal region of topoisomerase II beta. This interaction suggests a supportive role for this protein in the catalytic reactions of topoisomerase II beta through transient breakages of DNA strands.[3]

Interactions

TOPBP1 has been shown to interact with RAD9A,[4] E2F1,[5][6] Promyelocytic leukemia protein,[7] ZBTB17[8] and UBR5.[9]

References

  1. ^ Yamane K, Kawabata M, Tsuruo T (Feb 1998). "A DNA-topoisomerase-II-binding protein with eight repeating regions similar to DNA-repair enzymes and to a cell-cycle regulator". Eur J Biochem 250 (3): 794–9. doi:10.1111/j.1432-1033.1997.00794.x. PMID 9461304. 
  2. ^ Nagase T, Seki N, Ishikawa K, Ohira M, Kawarabayasi Y, Ohara O, Tanaka A, Kotani H, Miyajima N, Nomura N (May 1997). "Prediction of the coding sequences of unidentified human genes. VI. The coding sequences of 80 new genes (KIAA0201-KIAA0280) deduced by analysis of cDNA clones from cell line KG-1 and brain". DNA Res 3 (5): 321–9, 341–54. doi:10.1093/dnares/3.5.321. PMID 9039502. 
  3. ^ a b "Entrez Gene: TOPBP1 topoisomerase (DNA) II binding protein 1". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=11073. 
  4. ^ Mäkiniemi, M; Hillukkala T, Tuusa J, Reini K, Vaara M, Huang D, Pospiech H, Majuri I, Westerling T, Mäkelä T P, Syväoja J E (Aug. 2001). "BRCT domain-containing protein TopBP1 functions in DNA replication and damage response". J. Biol. Chem. (United States) 276 (32): 30399–406. doi:10.1074/jbc.M102245200. ISSN 0021-9258. PMID 11395493. 
  5. ^ Liu, Kang; Lin Fang-Tsyr, Ruppert J Michael, Lin Weei-Chin (May. 2003). "Regulation of E2F1 by BRCT domain-containing protein TopBP1". Mol. Cell. Biol. (United States) 23 (9): 3287–304. doi:10.1128/MCB.23.9.3287-3304.2003. ISSN 0270-7306. PMC 153207. PMID 12697828. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=153207. 
  6. ^ Yu, Xiaochun; Chini Claudia Christiano Silva, He Miao, Mer Georges, Chen Junjie (Oct. 2003). "The BRCT domain is a phospho-protein binding domain". Science (United States) 302 (5645): 639–42. doi:10.1126/science.1088753. PMID 14576433. 
  7. ^ Xu, Zhi-Xiang; Timanova-Atanasova Anna, Zhao Rui-Xun, Chang Kun-Sang (Jun. 2003). "PML colocalizes with and stabilizes the DNA damage response protein TopBP1". Mol. Cell. Biol. (United States) 23 (12): 4247–56. doi:10.1128/MCB.23.12.4247-4256.2003. ISSN 0270-7306. PMC 156140. PMID 12773567. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=156140. 
  8. ^ Herold, Steffi; Wanzel Michael, Beuger Vincent, Frohme Carsten, Beul Dorothee, Hillukkala Tomi, Syvaoja Juhani, Saluz Hans-Peter, Haenel Frank, Eilers Martin (Sep. 2002). "Negative regulation of the mammalian UV response by Myc through association with Miz-1". Mol. Cell (United States) 10 (3): 509–21. doi:10.1016/S1097-2765(02)00633-0. ISSN 1097-2765. PMID 12408820. 
  9. ^ Honda, Yoshiomi; Tojo Masahide, Matsuzaki Kazuhito, Anan Tadashi, Matsumoto Mitsuhiro, Ando Masayuki, Saya Hideyuki, Nakao Mitsuyoshi (Feb. 2002). "Cooperation of HECT-domain ubiquitin ligase hHYD and DNA topoisomerase II-binding protein for DNA damage response". J. Biol. Chem. (United States) 277 (5): 3599–605. doi:10.1074/jbc.M104347200. ISSN 0021-9258. PMID 11714696. 

Further reading