Variability of non-structural proteins of HIV-1 sub-subtype A6 (Retroviridae: Orthoretrovirinae: Lentivirus: Human immunodeficiency virus-1, sub-subtype A6) variants circulating in different regions of the Russian Federation
- Authors: Antonova A.A.1, Lebedev A.V.1, Ozhmegova E.N.1, Shlykova A.V.2, Lapavok I.A.2, Kuznetsova A.I.1
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Affiliations:
- D.I. Ivanovsky Institute of Virology of National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
- Central Research Institute of Epidemiology
- Issue: Vol 69, No 5 (2024)
- Pages: 470-480
- Section: ORIGINAL RESEARCH
- URL: https://ogarev-online.ru/0507-4088/article/view/269836
- DOI: https://doi.org/10.36233/0507-4088-262
- EDN: https://elibrary.ru/wbbkuq
- ID: 269836
Cite item
Abstract
Introduction. HIV-1 non-structural proteins are promising targets for vaccine development and for creating approaches to personalized medicine. HIV-1 sub-subtype A6 has become the dominating strain in Russia. However, the geographic, economic and demographic characteristics of the country can contribute to the formation of differences between A6 variants circulating in different regions.
The aim of the study is a comparative analysis of the consensus sequences of non-structural proteins in A6 variants circulating in the Amur Region, in Arkhangelsk, Irkutsk and Murmansk.
Materials and methods. 48 whole blood samples obtained from HIV-infected patients without experience of therapy observed at the AIDS Centers in Arkhangelsk, Irkutsk, Murmansk and Amur Region were analyzed. HIV-1 whole-genome nucleotide sequences were obtained and were subtyped. Consensus sequences of sub-subtype A6 variants non-structural proteins for each analyzed region were formed. Furthermore, reference sequences of sub-subtype A6 non-structural proteins were formed based on whole-genome sequences retrieved from the international Los Alamos database. Comparison of consensus sequences and references was performed using the MEGA v.10.2.2 and the PSIPRED programs.
Results. Vif, Vpr and Nef reference sequences have been obtained for HIV-1 sub-subtype A6. There was not difference in consensus sequences of Vpr in different regions. Characteristic features were found for consensus sequences of Tat, Rev, Vpu, Vif and Nef proteins in different regions.
Conclusion. A limitation of the study is a small sample size. Overall, the results demonstrate the existing diversity of non-structural proteins in sub-subtype A6 variants in different regions and indicate the relevance of studying the polymorphism of non-structural proteins of virus variants in different regions.
Keywords
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##article.viewOnOriginalSite##About the authors
Anastasiia A. Antonova
D.I. Ivanovsky Institute of Virology of National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
Email: anastaseika95@mail.ru
ORCID iD: 0000-0002-9180-9846
PhD in Biology, Researcher, Laboratory of T-lymphotropic viruses
Russian Federation, 123098, MoscowAleksey V. Lebedev
D.I. Ivanovsky Institute of Virology of National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
Email: lebedevalesha236@gmail.com
ORCID iD: 0000-0001-6787-9345
PhD in Biology, Researcher, Laboratory of T-lymphotropic viruses
Russian Federation, 123098, MoscowEkaterina N. Ozhmegova
D.I. Ivanovsky Institute of Virology of National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
Email: belokopytova.01@mail.ru
ORCID iD: 0000-0002-3110-0843
PhD in Biology, Researcher, Laboratory of T-lymphotropic viruses
Russian Federation, 123098, MoscowAnastasia V. Shlykova
Central Research Institute of Epidemiology
Email: murzakova_a.v@mail.ru
ORCID iD: 0000-0002-1390-8021
Researcher, Central Research Institute of Epidemiology
Russian Federation, Moscow, 111123Ilya A. Lapavok
Central Research Institute of Epidemiology
Email: i_lapovok@mail.ru
ORCID iD: 0000-0002-6328-1415
PhD in Biology, Senior researcher
Russian Federation, Moscow, 111123Anna I. Kuznetsova
D.I. Ivanovsky Institute of Virology of National Research Center for Epidemiology and Microbiology named after Honorary Academician N.F. Gamaleya
Author for correspondence.
Email: a-myznikova@list.ru
ORCID iD: 0000-0001-5299-3081
PhD in Biology, Leading Researcher, Head of Laboratory of T-lymphotropic viruses
Russian Federation, 123098, MoscowReferences
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