National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
R01AI152246
United States
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
U19AI142777
United States
Citation
Journal: Cell Rep / Year: 2024 Title: Crimean-Congo hemorrhagic fever survivors elicit protective non-neutralizing antibodies that target 11 overlapping regions on glycoprotein GP38. Authors: Olivia S Shin / Stephanie R Monticelli / Christy K Hjorth / Vladlena Hornet / Michael Doyle / Dafna Abelson / Ana I Kuehne / Albert Wang / Russell R Bakken / Akaash K Mishra / Marissa ...Authors: Olivia S Shin / Stephanie R Monticelli / Christy K Hjorth / Vladlena Hornet / Michael Doyle / Dafna Abelson / Ana I Kuehne / Albert Wang / Russell R Bakken / Akaash K Mishra / Marissa Middlecamp / Elizabeth Champney / Lauran Stuart / Daniel P Maurer / Jiannan Li / Jacob Berrigan / Jennifer Barajas / Stephen Balinandi / Julius J Lutwama / Leslie Lobel / Larry Zeitlin / Laura M Walker / John M Dye / Kartik Chandran / Andrew S Herbert / Noel T Pauli / Jason S McLellan / Abstract: Crimean-Congo hemorrhagic fever virus can cause lethal disease in humans yet there are no approved medical countermeasures. Viral glycoprotein GP38, exclusive to Nairoviridae, is a target of ...Crimean-Congo hemorrhagic fever virus can cause lethal disease in humans yet there are no approved medical countermeasures. Viral glycoprotein GP38, exclusive to Nairoviridae, is a target of protective antibodies and is a key antigen in preclinical vaccine candidates. Here, we isolate 188 GP38-specific antibodies from human survivors of infection. Competition experiments show that these antibodies bind across 5 distinct antigenic sites, encompassing 11 overlapping regions. Additionally, we show structures of GP38 bound with 9 of these antibodies targeting different antigenic sites. Although these GP38-specific antibodies are non-neutralizing, several display protective efficacy equal to or better than murine antibody 13G8 in two highly stringent rodent models of infection. Together, these data expand our understanding regarding this important viral protein and may inform the development of broadly effective CCHFV antibody therapeutics.
Mass: 30241.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Crimean-Congo hemorrhagic fever virus / Strain: IbAr10200 / Gene: GP / Production host: Homo sapiens (human) / References: UniProt: Q8JSZ3
-
Antibody , 2 types, 2 molecules HL
#2: Antibody
c13G8FabHeavyChain
Mass: 24215.262 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Production host: Homo sapiens (human)
#3: Antibody
c13G8FabLightChain
Mass: 23126.705 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Mus musculus (house mouse) / Production host: Homo sapiens (human)
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