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  Bacillus subtilis bacteriophage SPP1 DNA packaging motor requires terminase and portal proteins

Camacho, A. G., Gual, A., Lurz, R., Tavares, P., & Alonso, J. C. (2003). Bacillus subtilis bacteriophage SPP1 DNA packaging motor requires terminase and portal proteins. Journal of Biological Chemistry, 278(26), 23251-23259. doi:10.1074/jbc.M301805200.

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Genre: Zeitschriftenartikel
Alternativer Titel : J. Biol. Chem.

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 Urheber:
Camacho, Ana G., Autor
Gual, Aranzazu, Autor
Lurz, Rudi1, Autor
Tavares, Paulo, Autor
Alonso, Juan C., Autor
Affiliations:
1Max Planck Society, ou_persistent13              

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 Zusammenfassung: Initiation of headful packaging of SPP1 DNA concatemers involves the interaction of the terminase, G1P and G2P, and the portal protein, G6P. G1P, which specifically recognizes the non-adjacent pacL and pacR subsites and directs loading of G2P to pacC, interacts with G6P. G2P, which has endonuclease, DNA binding, and ATPase activities, interacts with G1P and does it transiently with G6P. The stoichiometry of G1P on the G1P·G2P complex promotes the transition from a G2P endonuclease to an ATPase. G6P does not alter the endonuclease activity of G2P. Both G1P and G6P, which do not have endogenous ATPase activity, synergistically enhance and modulate the ATPase activity of G2P. Based on these results, we propose a model in which the modulation of the ATPase and endonuclease activities of G2P accounts for the role of the terminase in headful packaging.

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Sprache(n): eng - English
 Datum: 2003-06-27
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 173719
ISI: 000183638600007
DOI: 10.1074/jbc.M301805200
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Titel: Journal of Biological Chemistry
  Alternativer Titel : J. Biol. Chem.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 278 (26) Artikelnummer: - Start- / Endseite: 23251 - 23259 Identifikator: ISSN: 0021-9258