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Region Hovedstaden - en del af Københavns Universitetshospital
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Genetic and structural insights into broad neutralization of hepatitis C virus by human VH1-69 antibodies

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DOI

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An effective vaccine to the antigenically diverse hepatitis C virus (HCV) must target conserved immune epitopes. Here, we investigate cross-neutralization of HCV genotypes by broadly neutralizing antibodies (bNAbs) encoded by the relatively abundant human gene family V H 1-69. We have deciphered the molecular requirements for cross-neutralization by this unique class of human antibodies from crystal structures of HCV E2 in complex with bNAbs. An unusually high binding affinity is found for germ line-reverted versions of VH1-69 precursor antibodies, and neutralization breadth is acquired during affinity maturation. Deep sequencing analysis of an HCV-immune B cell repertoire further demonstrates the importance of the V H 1-69 gene family in the generation of HCV bNAbs. This study therefore provides critical insights into immune recognition of HCV with important implications for rational vaccine design.

OriginalsprogEngelsk
Artikelnummereaav1882
TidsskriftScientific American
Vol/bind5
Udgave nummer1
Sider (fra-til)eaav1882
ISSN0036-8733
DOI
StatusUdgivet - 1 jan. 2019

ID: 56115344