Related Experiment Video
Updated: May 25, 2026

Detection of Viral RNA by Fluorescence in situ Hybridization (FISH)
Published on: May 5, 2012
CRM1-dependent trafficking of retroviral Gag proteins revisited
Mariju F Baluyot1, Sarah A Grosse, Terri D Lyddon
1New York Medical College, Valhalla, New York, USA.
Abstract:
We analyzed the nuclear trafficking ability of Gag proteins from six retroviral genera. Contrary to a previous report, human immunodeficiency virus type 1 (HIV-1) Gag showed no propensity to cycle through the nucleus. The only Gag protein that displayed CRM1-dependent nuclear cycling was that of Rous sarcoma virus (RSV). Surprisingly, this cycling could be eliminated without compromising infectivity by replacing the RSV Gag N-terminal matrix (MA) domain with HIV MA.
Related Concept Videos
Retroviruses
Retrovirus Life Cycles
Rab Proteins
Rab proteins switch between a cytosolic, GDP-bound inactive state and a membrane-anchored, GTP-bound active state. By themselves, Rabs show slow rates of GDP/GTP exchange and GTP hydrolysis. Thus, Rab proteins are considered...
LTR Retrotransposons
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
Rab Cascades
Mechanisms of Retrovirus-induced Cancers

