Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-2180
Joos, B; Fischer, M; Schweizer, A; Kuster, H; Boni, J; Wong, J K; Weber, R; Trkola, A; Gunthard, H F (2007). Positive in vivo selection of the HIV-1 envelope protein gp120 occurs at surface-exposed regions. Journal of Infectious Diseases, 196(2):313-320.
The rapid evolution of human immunodeficiency virus (HIV) envelope represents a major challenge to vaccine and drug development, particularly because the underlying mechanisms are not completely understood. To explore whether distinct patterns of positive selection within the envelope glycoprotein (gp) 120 exist and are associated with functionally relevant domains, we conducted a long-term survey of sequence evolution in 20 HIV-1-infected persons who interrupted antiretroviral therapy. In total, 1753 clonal sequences encompassing the C2-V3-C3 region of gp120 were derived. Strikingly, positively selected amino acids mapped almost exclusively (P=.0003) to externally accessible residues on the gp120 crystal structure. The current understanding of envelope structure and function associates the main determinants of viral entry and the targets for neutralizing antibodies with these exterior regions of gp120, strongly suggesting that the observed adaptive evolution of these sites occurs in response to respective selective forces.
|Item Type:||Journal Article, refereed|
|Communities & Collections:||04 Faculty of Medicine > Institute of Medical Virology|
|DDC:||570 Life sciences; biology|
610 Medicine & health
|Date:||15 July 2007|
|Deposited On:||11 Feb 2008 13:28|
|Last Modified:||27 Nov 2013 21:07|
|Publisher:||University of Chicago Press|
|Additional Information:||© 2007 by the Infectious Diseases Society of America|
|Citations:||Web of Science®. Times Cited: 8|
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