Structure and Characterization of Crimean-Congo Hemorrhagic Fever Virus GP38
- Univ. of Texas, Austin, TX (United States)
- Mapp Biopharmaceutical, San Diego, California, USA
- Mapp Biopharmaceutical, San Diego, CA (United States)
- Univ. of Texas Medical Branch, Galveston, TX (United States)
- Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Diamond Light Source, Ltd.
- Ben-Gurion Univ. of the Negev, Beer-Sheva (Israel)
- Uganda Virus Research Inst., Entebbe (Uganda)
- US Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, USA
- Albert Einstein College of Medicine, New York, NY (United States)
Crimean-Congo hemorrhagic fever virus (CCHFV) is a priority pathogen that poses a high risk to public health. Due to the high morbidity and mortality rates associated with CCHFV infection, there is an urgent need to develop medical countermeasures for disease prevention and treatment. CCHFV GP38, a secreted glycoprotein of unknown function unique to the Nairoviridae family, was recently shown to be the target of a protective antibody against CCHFV. Here, we present the crystal structure of GP38, which revealed a novel fold with distant homology to another CCHFV glycoprotein that is suggestive of a gene duplication event. We also demonstrate that antibody 13G8 protects STAT1-knockout mice against heterologous CCHFV challenge using a clinical isolate from regions where CCHFV is endemic. Collectively, these data advance our understanding of GP38 structure and antigenicity and should facilitate future studies investigating its function.
- Research Organization:
- Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
- Sponsoring Organization:
- National Institutes of Health (NIH); USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1839757
- Alternate ID(s):
- OSTI ID: 1834809
- Journal Information:
- Journal of Virology, Journal Name: Journal of Virology Journal Issue: 8 Vol. 94; ISSN 0022-538X
- Publisher:
- American Society for MicrobiologyCopyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
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