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Title: The MGF360-16R ORF of African Swine Fever Virus Strain Georgia Encodes for a Nonessential Gene That Interacts with Host Proteins SERTAD3 and SDCBP

Abstract

African swine fever virus (ASFV) causes a contagious and frequently lethal disease of pigs with significant economic consequences to the swine industry. The ASFV genome encodes for more than 160 genes, but only a few of them have been studied in detail. Here we report the characterization of open reading frame (ORF) MGF360-16R. Kinetic studies of virus RNA transcription demonstrated that the MGF360-16R gene is transcribed as a late virus protein. Analysis of host–protein interactions for the MGF360-16R gene using a yeast two-hybrid screen identified SERTA domain containing 3 (SERTAD3) and syndecan-binding protein (SDCBP) as host protein binding partners. SERTAD3 and SDCBP are both involved in nuclear transcription and SDCBP has been shown to be involved in virus traffic inside the host cell. Interaction between MGF360-16R and SERTAD3 and SDCBP host proteins was confirmed in eukaryotic cells transfected with plasmids expressing MGF360-16R and SERTAD3 or SDCBP fused to fluorescent tags. A recombinant ASFV lacking the MGF360-16R gene (ASFV-G-ΔMGF360-16R) was developed from the highly virulent field isolate Georgia2007 (ASFV-G) and was used to show that MGF360-16R is a nonessential gene. ASFV-G-ΔMGF360-16R had a similar replication ability in primary swine macrophage cell cultures when compared to its parental virus ASFV-G. Experimental infectionmore » of domestic pigs showed that ASFV-G-ΔMGF360-16R is as virulent as the parental virus ASFV-G.« less

Authors:
ORCiD logo [1];  [2];  [3];  [2];  [4];  [5]; ORCiD logo [6];  [7];  [6]; ORCiD logo [6]
  1. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center; Univ. of Connecticut, Storrs, CT (United States). Dept. of Pathobiology
  2. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center; Mississippi State Univ., Starkville, MS (United States). Dept. of Pathobiology and Population Medicine
  3. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center; Kansas State Univ., Manhattan, KS (United States). College of Veterinary Medicine
  4. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center; Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)
  5. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center; Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)
  6. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center
  7. Agricultural Research Service (ARS), Greenport, NY (United States). Plum Island Animal Disease Center;
Publication Date:
Research Org.:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1628591
Grant/Contract Number:  
SC0014664
Resource Type:
Accepted Manuscript
Journal Name:
Viruses
Additional Journal Information:
Journal Volume: 12; Journal Issue: 1; Journal ID: ISSN 1999-4915
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; Virology; ASFV; African swine fever virus; ASF; host–viral protein interactions; SDCP1; SERTAD3

Citation Formats

Ramírez-Medina, Elizabeth, Vuono, Elizabeth A., Velazquez-Salinas, Lauro, Silva, Ediane, Rai, Ayushi, Pruitt, Sarah, Berggren, Keith A., Zhu, James, Borca, Manuel V., and Gladue, Douglas P. The MGF360-16R ORF of African Swine Fever Virus Strain Georgia Encodes for a Nonessential Gene That Interacts with Host Proteins SERTAD3 and SDCBP. United States: N. p., 2020. Web. doi:10.3390/v12010060.
Ramírez-Medina, Elizabeth, Vuono, Elizabeth A., Velazquez-Salinas, Lauro, Silva, Ediane, Rai, Ayushi, Pruitt, Sarah, Berggren, Keith A., Zhu, James, Borca, Manuel V., & Gladue, Douglas P. The MGF360-16R ORF of African Swine Fever Virus Strain Georgia Encodes for a Nonessential Gene That Interacts with Host Proteins SERTAD3 and SDCBP. United States. https://doi.org/10.3390/v12010060
Ramírez-Medina, Elizabeth, Vuono, Elizabeth A., Velazquez-Salinas, Lauro, Silva, Ediane, Rai, Ayushi, Pruitt, Sarah, Berggren, Keith A., Zhu, James, Borca, Manuel V., and Gladue, Douglas P. Fri . "The MGF360-16R ORF of African Swine Fever Virus Strain Georgia Encodes for a Nonessential Gene That Interacts with Host Proteins SERTAD3 and SDCBP". United States. https://doi.org/10.3390/v12010060. https://www.osti.gov/servlets/purl/1628591.
@article{osti_1628591,
title = {The MGF360-16R ORF of African Swine Fever Virus Strain Georgia Encodes for a Nonessential Gene That Interacts with Host Proteins SERTAD3 and SDCBP},
author = {Ramírez-Medina, Elizabeth and Vuono, Elizabeth A. and Velazquez-Salinas, Lauro and Silva, Ediane and Rai, Ayushi and Pruitt, Sarah and Berggren, Keith A. and Zhu, James and Borca, Manuel V. and Gladue, Douglas P.},
abstractNote = {African swine fever virus (ASFV) causes a contagious and frequently lethal disease of pigs with significant economic consequences to the swine industry. The ASFV genome encodes for more than 160 genes, but only a few of them have been studied in detail. Here we report the characterization of open reading frame (ORF) MGF360-16R. Kinetic studies of virus RNA transcription demonstrated that the MGF360-16R gene is transcribed as a late virus protein. Analysis of host–protein interactions for the MGF360-16R gene using a yeast two-hybrid screen identified SERTA domain containing 3 (SERTAD3) and syndecan-binding protein (SDCBP) as host protein binding partners. SERTAD3 and SDCBP are both involved in nuclear transcription and SDCBP has been shown to be involved in virus traffic inside the host cell. Interaction between MGF360-16R and SERTAD3 and SDCBP host proteins was confirmed in eukaryotic cells transfected with plasmids expressing MGF360-16R and SERTAD3 or SDCBP fused to fluorescent tags. A recombinant ASFV lacking the MGF360-16R gene (ASFV-G-ΔMGF360-16R) was developed from the highly virulent field isolate Georgia2007 (ASFV-G) and was used to show that MGF360-16R is a nonessential gene. ASFV-G-ΔMGF360-16R had a similar replication ability in primary swine macrophage cell cultures when compared to its parental virus ASFV-G. Experimental infection of domestic pigs showed that ASFV-G-ΔMGF360-16R is as virulent as the parental virus ASFV-G.},
doi = {10.3390/v12010060},
journal = {Viruses},
number = 1,
volume = 12,
place = {United States},
year = {Fri Jan 03 00:00:00 EST 2020},
month = {Fri Jan 03 00:00:00 EST 2020}
}

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