Domain- and nucleotide-specific Rev response element regulation of feline immunodeficiency virus production.

Abstract:

:Computational analysis of feline immunodeficiency virus (FIV) RNA sequences indicated that common FIV strains contain a rev response element (RRE) defined by a long unbranched hairpin with 6 stem-loop sub-domains, termed stem-loop A (SLA). To examine the role of the RNA secondary structure of the RRE, mutational analyses were performed in both an infectious FIV molecular clone and a FIV CAT-RRE reporter system. These studies disclosed that the stems within SLA (SA1, 2, 3, 4, and 5) of the RRE were critical but SA6 was not essential for FIV replication and CAT expression. These studies also revealed that the secondary structure rather than an antisense protein (ASP) mediates virus expression and replication in vitro. In addition, a single synonymous mutation within the FIV-RRE, SA3/45, reduced viral reverse transcriptase activity and p24 expression after transfection but in addition also showed a marked reduction in viral expression and production following infection.

journal_name

Virology

journal_title

Virology

authors

Na H,Huisman W,Ellestad KK,Phillips TR,Power C

doi

10.1016/j.virol.2010.04.009

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

246-60

issue

2

eissn

0042-6822

issn

1096-0341

pii

S0042-6822(10)00244-8

journal_volume

404

pub_type

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