HIV type 1 envelope subtype C sequences from recent seroconverters in Zimbabwe

被引:29
作者
Batra, M
Tien, PC
Shafer, RW
Contag, CH
Katzenstein, DA
机构
[1] Stanford Univ, Med Ctr, Ctr AIDS Res, Sch Med, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Pediat, Sch Med, Stanford, CA 94305 USA
关键词
D O I
10.1089/08892220050058399
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
HIV-1 envelope sequence patterns have implications for virus cell tropism and for the development of an effective vaccine. To identify the sequence characteristics of recently transmitted HIV-1 isolates in southern Africa, we sequenced the V3-V5 envelope regions of 24 male seroconverters in Harare, Zimbabwe. Each of the sequences clustered with previously reported subtype C isolates and there was a mean 17% intersequence pairwise genetic distance between the Zimbabwean isolates. Three isolates were syncytium inducing (SI). One of the SI isolates had an unusual GIGK crown and a deletion at codon 23; one had the codon 23 deletion alone; and one had a high net positive charge in the V3 loop. The extensive genetic diversity within the envelope of subtype C HIV-1 isolates must be considered in vaccine development. Further analysis of subtype C SI isolates and site-directed mutagenesis experiments are required to determine the molecular basis of SI activity in global HIV-1 isolates.
引用
收藏
页码:973 / 979
页数:7
相关论文
共 40 条
[1]  
ABEBE A, 1998, INT C AIDS, V12, P1161
[2]   HUMAN-IMMUNODEFICIENCY-VIRUS ISOLATES FROM ASYMPTOMATIC HOMOSEXUAL MEN AND FROM AIDS PATIENTS HAVE DISTINCT BIOLOGIC AND GENETIC PROPERTIES [J].
BALACHANDRAN, R ;
THAMPATTY, P ;
ENRICO, A ;
RINALDO, C ;
GUPTA, P .
VIROLOGY, 1991, 180 (01) :229-238
[3]   Phenotypic characteristics of human immunodeficiency virus type 1 subtype C isolates of Ethiopian AIDS patients [J].
Björndal, Å ;
Sönnerborg, A ;
Tscherning, C ;
Albert, J ;
Fenyö, EM .
AIDS RESEARCH AND HUMAN RETROVIRUSES, 1999, 15 (07) :647-653
[4]   A SINGLE AMINO-ACID SUBSTITUTION IN THE V1 LOOP OF HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-1 GP120 ALTERS CELLULAR TROPISM [J].
BOYD, MT ;
SIMPSON, GR ;
CANN, AJ ;
JOHNSON, MA ;
WEISS, RA .
JOURNAL OF VIROLOGY, 1993, 67 (06) :3649-3652
[5]   BIOLOGIC FEATURES OF HIV-1 THAT CORRELATE WITH VIRULENCE IN THE HOST [J].
CHENGMAYER, C ;
SETO, D ;
TATENO, M ;
LEVY, JA .
SCIENCE, 1988, 240 (4848) :80-82
[6]   GENETIC-RELATIONSHIPS DETERMINED BY A DNA HETERODUPLEX MOBILITY ASSAY - ANALYSIS OF HIV-1 ENV GENES [J].
DELWART, EL ;
SHPAER, EG ;
LOUWAGIE, J ;
MCCUTCHAN, FE ;
GREZ, M ;
RUBSAMENWAIGMANN, H ;
MULLINS, JI .
SCIENCE, 1993, 262 (5137) :1257-1261
[7]   Identification of a major co-receptor for primary isolates of HIV-1 [J].
Deng, HK ;
Liu, R ;
Ellmeier, W ;
Choe, S ;
Unutmaz, D ;
Burkhart, M ;
DiMarzio, P ;
Marmon, S ;
Sutton, RE ;
Hill, CM ;
Davis, CB ;
Peiper, SC ;
Schall, TJ ;
Littman, DR ;
Landau, NR .
NATURE, 1996, 381 (6584) :661-666
[8]   HIV-1 entry into CD4(+) cells is mediated by the chemokine receptor CC-CKR-5 [J].
Dragic, T ;
Litwin, V ;
Allaway, GP ;
Martin, SR ;
Huang, YX ;
Nagashima, KA ;
Cayanan, C ;
Maddon, PJ ;
Koup, RA ;
Moore, JP ;
Paxton, WA .
NATURE, 1996, 381 (6584) :667-673
[9]   HIV type 1 V3 domain serotyping and genotyping in Gauteng, Mpumalanga, KwaZulu-Natal, and Western Cape Provinces of South Africa [J].
Engelbrecht, S ;
Smith, TL ;
Kasper, P ;
Faatz, E ;
Zeier, M ;
Moodley, D ;
Clay, CG ;
Van Rensburg, EJ .
AIDS RESEARCH AND HUMAN RETROVIRUSES, 1999, 15 (04) :325-328
[10]  
Felsenstein J., 1993, PHYLIP PHYLOGENY INF