Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus

African swine fever virus (ASFV) belongs to the family of <i>Asfarviridae</i>, part of the group of nucleocytoplasmic large DNA viruses (NCLDV). Little is known about the internalization of ASFV in the host cell and the fusion membrane events that take place at early stages of the infect...

Full description

Bibliographic Details
Main Authors: Jesús Urquiza, Miguel Ángel Cuesta-Geijo, Isabel García-Dorival, Óscar Fernández, Ana del Puerto, José Fernando Díaz, Covadonga Alonso
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/16/3/349
_version_ 1797239076023173120
author Jesús Urquiza
Miguel Ángel Cuesta-Geijo
Isabel García-Dorival
Óscar Fernández
Ana del Puerto
José Fernando Díaz
Covadonga Alonso
author_facet Jesús Urquiza
Miguel Ángel Cuesta-Geijo
Isabel García-Dorival
Óscar Fernández
Ana del Puerto
José Fernando Díaz
Covadonga Alonso
author_sort Jesús Urquiza
collection DOAJ
description African swine fever virus (ASFV) belongs to the family of <i>Asfarviridae</i>, part of the group of nucleocytoplasmic large DNA viruses (NCLDV). Little is known about the internalization of ASFV in the host cell and the fusion membrane events that take place at early stages of the infection. Poxviruses, also members of the NCLDV and represented by vaccinia virus (VACV), are large, enveloped, double-stranded DNA viruses. Poxviruses were considered unique in having an elaborate entry-fusion complex (EFC) composed of 11 highly conserved proteins integrated into the membrane of mature virions. Recent advances in methodological techniques have again revealed several connections between VACV EFC proteins. In this study, we explored the possibility of an analogous ASFV EFC by identifying ten candidate proteins exhibiting structural similarities with VACV EFC proteins. This could reveal key functions of these ASFV proteins, drawing attention to shared features between the two virus families, suggesting the potential existence of an ASFV entry-fusion complex.
first_indexed 2024-04-24T17:45:47Z
format Article
id doaj.art-193b6c1a04014803a173a849f25fb45a
institution Directory Open Access Journal
issn 1999-4915
language English
last_indexed 2024-04-24T17:45:47Z
publishDate 2024-02-01
publisher MDPI AG
record_format Article
series Viruses
spelling doaj.art-193b6c1a04014803a173a849f25fb45a2024-03-27T14:07:37ZengMDPI AGViruses1999-49152024-02-0116334910.3390/v16030349Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia VirusJesús Urquiza0Miguel Ángel Cuesta-Geijo1Isabel García-Dorival2Óscar Fernández3Ana del Puerto4José Fernando Díaz5Covadonga Alonso6Departamento de Biotecnología, INIA-CSIC, Centro Nacional Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra. de la Coruña Km 7.5, 28040 Madrid, SpainDepartamento de Biotecnología, INIA-CSIC, Centro Nacional Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra. de la Coruña Km 7.5, 28040 Madrid, SpainDepartamento de Biotecnología, INIA-CSIC, Centro Nacional Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra. de la Coruña Km 7.5, 28040 Madrid, SpainUnidad BICS, Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, SpainDepartamento de Biotecnología, INIA-CSIC, Centro Nacional Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra. de la Coruña Km 7.5, 28040 Madrid, SpainUnidad BICS, Centro de Investigaciones Biológicas Margarita Salas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, SpainDepartamento de Biotecnología, INIA-CSIC, Centro Nacional Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Ctra. de la Coruña Km 7.5, 28040 Madrid, SpainAfrican swine fever virus (ASFV) belongs to the family of <i>Asfarviridae</i>, part of the group of nucleocytoplasmic large DNA viruses (NCLDV). Little is known about the internalization of ASFV in the host cell and the fusion membrane events that take place at early stages of the infection. Poxviruses, also members of the NCLDV and represented by vaccinia virus (VACV), are large, enveloped, double-stranded DNA viruses. Poxviruses were considered unique in having an elaborate entry-fusion complex (EFC) composed of 11 highly conserved proteins integrated into the membrane of mature virions. Recent advances in methodological techniques have again revealed several connections between VACV EFC proteins. In this study, we explored the possibility of an analogous ASFV EFC by identifying ten candidate proteins exhibiting structural similarities with VACV EFC proteins. This could reveal key functions of these ASFV proteins, drawing attention to shared features between the two virus families, suggesting the potential existence of an ASFV entry-fusion complex.https://www.mdpi.com/1999-4915/16/3/349African swine fever virusASFVNCLDVspoxvirusesfusion proteinsentry-fusion complex
spellingShingle Jesús Urquiza
Miguel Ángel Cuesta-Geijo
Isabel García-Dorival
Óscar Fernández
Ana del Puerto
José Fernando Díaz
Covadonga Alonso
Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
Viruses
African swine fever virus
ASFV
NCLDVs
poxviruses
fusion proteins
entry-fusion complex
title Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
title_full Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
title_fullStr Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
title_full_unstemmed Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
title_short Identification of a Potential Entry-Fusion Complex Based on Sequence Homology of African Swine Fever and Vaccinia Virus
title_sort identification of a potential entry fusion complex based on sequence homology of african swine fever and vaccinia virus
topic African swine fever virus
ASFV
NCLDVs
poxviruses
fusion proteins
entry-fusion complex
url https://www.mdpi.com/1999-4915/16/3/349
work_keys_str_mv AT jesusurquiza identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT miguelangelcuestageijo identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT isabelgarciadorival identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT oscarfernandez identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT anadelpuerto identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT josefernandodiaz identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus
AT covadongaalonso identificationofapotentialentryfusioncomplexbasedonsequencehomologyofafricanswinefeverandvacciniavirus