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TitlePotent human neutralizing antibodies against Nipah virus derived from two ancestral antibody heavy chains.
Journal, issue, pagesNat Commun, Vol. 15, Issue 1, Page 2987, Year 2024
Publish dateApr 6, 2024
AuthorsLi Chen / Mengmeng Sun / Huajun Zhang / Xinghai Zhang / Yanfeng Yao / Ming Li / Kangyin Li / Pengfei Fan / Haiwei Zhang / Ye Qin / Zhe Zhang / Entao Li / Zhen Chen / Wuxiang Guan / Shanshan Li / Changming Yu / Kaiming Zhang / Rui Gong / Sandra Chiu /
PubMed AbstractNipah virus (NiV) is a World Health Organization priority pathogen and there are currently no approved drugs for clinical immunotherapy. Through the use of a naïve human phage-displayed Fab library, ...Nipah virus (NiV) is a World Health Organization priority pathogen and there are currently no approved drugs for clinical immunotherapy. Through the use of a naïve human phage-displayed Fab library, two neutralizing antibodies (NiV41 and NiV42) targeting the NiV receptor binding protein (RBP) were identified. Following affinity maturation, antibodies derived from NiV41 display cross-reactivity against both NiV and Hendra virus (HeV), whereas the antibody based on NiV42 is only specific to NiV. Results of immunogenetic analysis reveal a correlation between the maturation of antibodies and their antiviral activity. In vivo testing of NiV41 and its mature form (41-6) show protective efficacy against a lethal NiV challenge in hamsters. Furthermore, a 2.88 Å Cryo-EM structure of the tetrameric RBP and antibody complex demonstrates that 41-6 blocks the receptor binding interface. These findings can be beneficial for the development of antiviral drugs and the design of vaccines with broad spectrum against henipaviruses.
External linksNat Commun / PubMed:38582870 / PubMed Central
MethodsEM (single particle)
Resolution2.88 Å
Structure data

36849

8k3c

EMDB-36849, PDB-8k3c:
Nipah virus Attachment glycoprotein with 41-6 antibody fragment
Method: EM (single particle) / Resolution: 2.88 Å

Source
  • henipavirus nipahense
  • homo sapiens (human)
KeywordsVIRAL PROTEIN/IMMUNE SYSTEM / Nipah virus / Attachment glycoprotein / tetramer complex / Neutralizing antibody / VIRAL PROTEIN / VIRAL PROTEIN-IMMUNE SYSTEM complex

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