The thermodynamics of Pr55Gag-RNA interaction regulate the assembly of HIV

The interactions that occur during HIV Pr55Gag oligomerization and genomic RNA packaging are essential elements that facilitate HIV assembly. However, mechanistic details of these interactions are not clearly defined. Here, we overcome previous limitations in producing large quantities of full-lengt...

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Veröffentlicht in:PLoS pathogens 2017-02, Vol.13 (2), p.e1006221-e1006221
Hauptverfasser: Tanwar, Hanumant S, Khoo, Keith K, Garvey, Megan, Waddington, Lynne, Leis, Andrew, Hijnen, Marcel, Velkov, Tony, Dumsday, Geoff J, McKinstry, William J, Mak, Johnson
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Sprache:eng
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Zusammenfassung:The interactions that occur during HIV Pr55Gag oligomerization and genomic RNA packaging are essential elements that facilitate HIV assembly. However, mechanistic details of these interactions are not clearly defined. Here, we overcome previous limitations in producing large quantities of full-length recombinant Pr55Gag that is required for isothermal titration calorimetry (ITC) studies, and we have revealed the thermodynamic properties of HIV assembly for the first time. Thermodynamic analysis showed that the binding between RNA and HIV Pr55Gag is an energetically favourable reaction (ΔG
ISSN:1553-7374
1553-7366
1553-7374
DOI:10.1371/journal.ppat.1006221