Human immunodeficiency virus type 1 Rev response element RNA (HIV-1 RRE RNA)

The Human Immunodeficiency Virus Type 1 Rev Response Element (HIV-1 RRE) RNA is a highly structured, approximately 350-nucleotide cis-acting regulatory element located within the env gene of the viral genome (nih.gov, 2.2.1). It serves as a critical scaffold for the assembly of the viral Rev protein, forming a ribonucleoprotein complex that is essential for the nuclear export of unspliced and singly spliced viral mRNAs (elifesciences.org, 2.2.5). These transcripts are otherwise restricted to the nucleus by host cell machinery, and their export is necessary for the translation of structural proteins like Gag and Env, as well as for the packaging of the full-length viral genome into new virions (royalsocietypublishing.org, 2.4.2). Because the Rev-RRE interaction is indispensable for viral replication and is relatively well-conserved across different HIV-1 isolates, it has become a prominent target for the development of novel antiretroviral therapies (nih.gov, 3.1.2). Experimental strategies to target the RRE include the use of small molecules, such as benzofluorenones and aminoglycosides, as well as peptides and RNA-based inhibitors designed to disrupt Rev binding or oligomerization (researchgate.net, 3.2.1). However, therapeutic development faces challenges such as the potential for rapid mutational escape by the virus and the need for high specificity to avoid off-target effects on host RNA pathways (nih.gov, 2.3.1).

Other names

Rev response elementRREHIV-1 RRERRE RNARev-binding element

Inhibition of the Rev-RRE interaction, which blocks the nuclear export of unspliced and singly spliced viral mRNAs, thereby preventing the production of essential viral proteins and the packaging of the viral genome.