Journal
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
Volume 40, Issue 12, Pages 5702-5711Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07391102.2020.1870562
Keywords
Intrinsic disorder; HIV; HSV; HCV; vaccine; immune evasion; rabies; FIV
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This article discusses the significant impact of intrinsic disorder in the outer shell of HIV on vaccine development and proposes a new model for vaccine design. Traditional viruses typically do not have high levels of intrinsic disorder in their outer shells, allowing for successful establishment of effective vaccines.
The search for a human immunodeficiency virus (HIV) vaccine has spanned nearly four decades without much success. A much needed paradigm shift can be found in the abnormally high levels of intrinsic disorder in the outer shells of HIVs, the hepatitis C virus (HCV), and herpes simplex viruses (HSVs), for which successful vaccines have not been established. On the other hand, this feature (high levels of intrinsic disorder in the outer shells) is completely absent in classic viruses for which effective vaccines are found, such as the rabies virus. The motions arising from the disordered outer shell result in the inability of antibodies to bind tightly to the polysaccharides on the viral surface proteins, and, therefore, induce inadequate immune response. Experiments conducted by the legendary Avery Oswald in the 1920s form the theoretical underpinning of this new model. Failures of the vaccines based on the HIV glycoprotein Gp120 and other vaccines can be traced back to the lack of understanding of the important roles of shell disorder in a Trojan-horse immune evasion mechanism utilized by the virus. Communicated by Ramaswamy H. Sarma
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