Document 3270 DOCN M94A3270 TI Conserved domains of the HIV-1 vif gene in vivo. DT 9412 AU Wieland U; Seelhoff A; Salzberger B; Schwander S; Dietrich M; Eggers HJ; Kuehn JE; Institut f. Virologie, Universitaet Koeln, Germany. SO Int Conf AIDS. 1994 Aug 7-12;10(1):114 (abstract no. PA0075). Unique Identifier : AIDSLINE ICA10/94369305 AB OBJECTIVE: Determination of the genetic variability of the HIV-1 vif gene and identification of conserved and possibly functionally important regions of the complete vif gene of European and African HIV-1-infected patients. METHODS: PCR products of peripheral blood mononuclear cells extracts of 85 HIV-1 positive patients from Germany and Uganda were analysed by direct solid phase sequencing and temperature gradient gelelectrophoresis. RESULTS AND DISCUSSION: Vif consensus sequences were obtained for the European (proviral DNA: 58% conserved; deduced amino acid sequence 45% conserved) and African samples showing conserved, variable and hypervariable regions of the vif gene in vivo. The vif gene was found to be less conserved than previously thougt, with its 5' part being less variable than its 3' part. In sequential samples from individual patients the HIV-1 gene changed with the course of disease. However, in all patients a complete vif gene was found, indicating its significance in vivo. It remains to be determined which of the conserved motifs are essential for the function of the variable vif gene product. DE Amino Acid Sequence Base Sequence *Conserved Sequence DNA, Viral/GENETICS *Genes, vif Germany Human HIV Infections/*MICROBIOLOGY HIV-1/*GENETICS/ISOLATION & PURIF Proviruses/GENETICS Uganda Variation (Genetics) MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).