Cargando…

Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus

Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne pathogen that causes severe disease in humans. CCHFV is widely distributed in more than 30 countries and distinct regions, which means that it poses a serious threat to human health. The nucleocapsid protein (NP) encoded by the CCHFV S ge...

Descripción completa

Detalles Bibliográficos
Autores principales: Moming, Abulimiti, Tuoken, Daerken, Yue, Xihong, Xu, Wanxiang, Guo, Rong, Liu, Dongliang, Li, Yijie, Hu, Zhihong, Deng, Fei, Zhang, Yujiang, Sun, Surong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147494/
https://www.ncbi.nlm.nih.gov/pubmed/30235312
http://dx.doi.org/10.1371/journal.pone.0204264
_version_ 1783356561312186368
author Moming, Abulimiti
Tuoken, Daerken
Yue, Xihong
Xu, Wanxiang
Guo, Rong
Liu, Dongliang
Li, Yijie
Hu, Zhihong
Deng, Fei
Zhang, Yujiang
Sun, Surong
author_facet Moming, Abulimiti
Tuoken, Daerken
Yue, Xihong
Xu, Wanxiang
Guo, Rong
Liu, Dongliang
Li, Yijie
Hu, Zhihong
Deng, Fei
Zhang, Yujiang
Sun, Surong
author_sort Moming, Abulimiti
collection PubMed
description Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne pathogen that causes severe disease in humans. CCHFV is widely distributed in more than 30 countries and distinct regions, which means that it poses a serious threat to human health. The nucleocapsid protein (NP) encoded by the CCHFV S gene is the primary detectable antigen in infected cells, which makes it an important viral antigen and a clinical diagnostic target. In this study, the modified biosynthetic peptide (BSP) method was used to identify the fine epitopes on the N- and C- terminals of NP from the CCHFV YL04057 strain using rabbit antiserum against CCHFV-NP. Nine epitopes were identified: E1a ((178)NLILNRGG(185)), E1b ((184)GGDENP(189)), E2 ((352)PLKWGKK(358)), E3 ((363)FADDS(367)), E4 ((399)NPDDAA(404)), E5a ((447)DIVASEHL(454)), E5b ((452)EHLLHQSL(459)), E6 ((464)SPFQNAY(470)) and E7 ((475)NATSANII(482)). Western blotting analysis showed that each epitope interacted with the positive serum of sheep that had been naturally infected with CCHFV. Amino acid sequence alignment between each epitope and their homologous proteins showed that they were almost 100% conserved among 12 CCHFV sequences from different lineages, except for epitopes E1a, E1b and E2. Three-dimensional structural modeling analysis showed that all identified epitopes were located on the surface of the NP “head” domain. This study identified fine epitopes on the N- and C- terminals of NP, which will increase the understanding of the structure and function of NP, and it could lay the foundation for the design and development of a CCHFV multi-epitope peptide vaccine and detection antigen.
format Online
Article
Text
id pubmed-6147494
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-61474942018-10-08 Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus Moming, Abulimiti Tuoken, Daerken Yue, Xihong Xu, Wanxiang Guo, Rong Liu, Dongliang Li, Yijie Hu, Zhihong Deng, Fei Zhang, Yujiang Sun, Surong PLoS One Research Article Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne pathogen that causes severe disease in humans. CCHFV is widely distributed in more than 30 countries and distinct regions, which means that it poses a serious threat to human health. The nucleocapsid protein (NP) encoded by the CCHFV S gene is the primary detectable antigen in infected cells, which makes it an important viral antigen and a clinical diagnostic target. In this study, the modified biosynthetic peptide (BSP) method was used to identify the fine epitopes on the N- and C- terminals of NP from the CCHFV YL04057 strain using rabbit antiserum against CCHFV-NP. Nine epitopes were identified: E1a ((178)NLILNRGG(185)), E1b ((184)GGDENP(189)), E2 ((352)PLKWGKK(358)), E3 ((363)FADDS(367)), E4 ((399)NPDDAA(404)), E5a ((447)DIVASEHL(454)), E5b ((452)EHLLHQSL(459)), E6 ((464)SPFQNAY(470)) and E7 ((475)NATSANII(482)). Western blotting analysis showed that each epitope interacted with the positive serum of sheep that had been naturally infected with CCHFV. Amino acid sequence alignment between each epitope and their homologous proteins showed that they were almost 100% conserved among 12 CCHFV sequences from different lineages, except for epitopes E1a, E1b and E2. Three-dimensional structural modeling analysis showed that all identified epitopes were located on the surface of the NP “head” domain. This study identified fine epitopes on the N- and C- terminals of NP, which will increase the understanding of the structure and function of NP, and it could lay the foundation for the design and development of a CCHFV multi-epitope peptide vaccine and detection antigen. Public Library of Science 2018-09-20 /pmc/articles/PMC6147494/ /pubmed/30235312 http://dx.doi.org/10.1371/journal.pone.0204264 Text en © 2018 Moming et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Moming, Abulimiti
Tuoken, Daerken
Yue, Xihong
Xu, Wanxiang
Guo, Rong
Liu, Dongliang
Li, Yijie
Hu, Zhihong
Deng, Fei
Zhang, Yujiang
Sun, Surong
Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title_full Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title_fullStr Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title_full_unstemmed Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title_short Mapping of B-cell epitopes on the N- terminal and C-terminal segment of nucleocapsid protein from Crimean-Congo hemorrhagic fever virus
title_sort mapping of b-cell epitopes on the n- terminal and c-terminal segment of nucleocapsid protein from crimean-congo hemorrhagic fever virus
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147494/
https://www.ncbi.nlm.nih.gov/pubmed/30235312
http://dx.doi.org/10.1371/journal.pone.0204264
work_keys_str_mv AT momingabulimiti mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT tuokendaerken mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT yuexihong mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT xuwanxiang mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT guorong mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT liudongliang mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT liyijie mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT huzhihong mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT dengfei mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT zhangyujiang mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus
AT sunsurong mappingofbcellepitopesonthenterminalandcterminalsegmentofnucleocapsidproteinfromcrimeancongohemorrhagicfevervirus