Next Article in Journal
The Pathogenesis of Rift Valley Fever
Previous Article in Journal
Susceptibility of Primary HTLV-1 Isolates from Patients with HTLV-1-Associated Myelopathy to Reverse Transcriptase Inhibitors
Viruses 2011, 3(5), 484-492; doi:10.3390/v3050484
Commentary

A Long-Awaited Structure Is Rev-ealed

 and *
Received: 16 March 2011; in revised form: 20 April 2011 / Accepted: 26 April 2011 / Published: 5 May 2011
(This article belongs to the Section Editorial)
Download PDF [392 KB, uploaded 5 May 2011]
Abstract: It has been known for some time that the HIV Rev protein binds and oligomerizes on a well-defined multiple stem-loop RNA structure, named the Rev Response Element (RRE), which is present in a subset of HIV mRNAs. This binding is the first step in a pathway that overcomes a host restriction, which would otherwise prevent the export of these RNAs to the cytoplasm. Four recent publications now provide new insight into the structure of Rev and the multimeric RNA-protein complex that forms on the RRE [1–4]. Two unexpected and remarkable findings revealed in these studies are the flexibility of RNA binding that is demonstrated by the Rev arginine-rich RNA binding motif, and the way that both Rev protein and RRE contribute to the formation of the complex in a highly cooperative fashion. These studies also define the Rev dimerization and oligomerization interfaces to a resolution of 2.5Å, providing a framework necessary for further structural and functional studies. Additionally, and perhaps most importantly, they also pave the way for rational drug design, which may ultimately lead to new therapies to inhibit this essential HIV function.
Keywords: HIV-1; Rev; RRE; RNA export; nuclear-cytoplasmic export; protein structure; RNA-protein binding; X-ray crystallography HIV-1; Rev; RRE; RNA export; nuclear-cytoplasmic export; protein structure; RNA-protein binding; X-ray crystallography
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Hammarskjold, M.-L.; Rekosh, D. A Long-Awaited Structure Is Rev-ealed. Viruses 2011, 3, 484-492.

AMA Style

Hammarskjold M-L, Rekosh D. A Long-Awaited Structure Is Rev-ealed. Viruses. 2011; 3(5):484-492.

Chicago/Turabian Style

Hammarskjold, Marie-Louise; Rekosh, David. 2011. "A Long-Awaited Structure Is Rev-ealed." Viruses 3, no. 5: 484-492.


Viruses EISSN 1999-4915 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert