Altered replicative capacity of recombinant HIV type 1 containing mutations at codons 26 and 29 of the viral protease.

Abstract:

:HIV-1 protease activity is essential for viral replication. In spite of the high rates of HIV mutation, the active site of protease (residues 24-29) is a conserved site, where mutations have not been previously described. To determine the effect of mutations at positions T26 and A29 of the viral protease and its viability in recombinant HIV-1 strains, Sup-t1 cells were transfected by electroporation with PCR products from a protease containing the 26X or 29X mutation. These mutations were constructed by mutagenesis site directed with degenerative primers. Both changes modified the replicative capacity of the virus: viruses containing the 26X mutation have delayed replication as compared to the control virus HTLVIII B; the presence of the 29X mutation in the viral protease results in the absence of HIV-1 replication. These findings confirm that this region of the viral protease appears to be necessary for the viability of HIV-1, and it could be a good target for antiviral therapy.

authors

Melón S,Gil-Roda C,de Oña M,Erice A

doi

10.1089/aid.2004.20.1183

subject

Has Abstract

pub_date

2004-11-01 00:00:00

pages

1183-8

issue

11

eissn

0889-2229

issn

1931-8405

journal_volume

20

pub_type

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