Functional interactions of DNA topoisomerases with a human replication origin. (Articolo in rivista)

Type
Label
  • Functional interactions of DNA topoisomerases with a human replication origin. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1038/sj.emboj.7601578 (literal)
Alternative label
  • Abdurashidova G; Radulescu S; Sandoval O; Zahariev S; Danailov MB; Demidovich A; Santamaria L; Biamonti G; Riva S; Falaschi A. (2007)
    Functional interactions of DNA topoisomerases with a human replication origin.
    in EMBO journal (Print); NATURE PUBLISHING GROUP,, LONDON (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Abdurashidova G; Radulescu S; Sandoval O; Zahariev S; Danailov MB; Demidovich A; Santamaria L; Biamonti G; Riva S; Falaschi A. (literal)
Pagina inizio
  • 998 (literal)
Pagina fine
  • 1009 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.nature.com/emboj/journal/v26/n4/full/7601578a.html (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 26 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
  • PubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • AG, RS, SO, ZS, SL: Molecular Biology Group, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy; DMB DA: Sincrotrone Trieste, Trieste, Italy; BG, SR: Molecular Biology Section, Istituto di Genetica Molecolare, CNR, Pavia, Italy; FA: Molecular Biology Laboratory, Scuola Normale Superiore, Pisa, Italy and Laboratory of Gene and Molecular Therapy, Istituto di Fisiologia Clinica, CNR, Pisa, Italy. (literal)
Titolo
  • Functional interactions of DNA topoisomerases with a human replication origin. (literal)
Abstract
  • The human DNA replication origin, located in the lamin B2 gene, interacts with the DNA topoisomerases I and II in a cell cycle-modulated manner. The topoisomerases interact in vivo and in vitro with precise bonds ahead of the start sites of bidirectional replication, within the pre-replicative complex region; topoisomerase I is bound in M, early G1 and G1/S border and topoisomerase II in M and the middle of G1. The Orc2 protein competes for the same sites of the origin bound by either topoisomerase in different moments of the cell cycle; furthermore, it interacts on the DNA with topoisomerase II during the assembly of the pre-replicative complex and with DNA-bound topoisomerase I at the G1/S border. Inhibition of topoisomerase I activity abolishes origin firing. Thus, the two topoisomerases are closely associated with the replicative complexes, and DNA topology plays an essential functional role in origin activation. (literal)
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