Influenza hemagglutinin (HA) is considered a major protective antigen of seasonal influenza vaccine but antigenic drift of HA necessitates annual immunizations using new circulating HA versions. Low variation found within conserved non-HA influenza virus
Nutan Mytle +12 more
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A Single Immunization with Soluble Recombinant Trimeric Hemagglutinin Protects Chickens against Highly Pathogenic Avian Influenza Virus H5N1 [PDF]
Background: The highly pathogenic avian influenza (HPAI) virus H5N1 causes multi-organ disease and death in poultry, resulting in significant economic losses in the poultry industry.
Dep Infectieziekten Immunologie +17 more
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Hemagglutinin sequence conservation guided stem immunogen design from influenza A H3 subtype [PDF]
Seasonal epidemics caused by influenza A (H1 and H3 subtypes) and B viruses are a major global health threat. The traditional, trivalent influenza vaccines have limited efficacy because of rapid antigenic evolution of the circulating viruses.
Citron, Michael +24 more
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Structural Biology of Influenza Hemagglutinin: An Amaranthine Adventure
Hemagglutinin (HA) glycoprotein is an important focus of influenza research due to its role in antigenic drift and shift, as well as its receptor binding and membrane fusion functions, which are indispensable for viral entry.
Nicholas C. Wu, Ian A. Wilson
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Broadly neutralizing monoclonal antibodies (bNAbs) against conserved domains in the influenza hemagglutinin are in clinical trials. Several next generation influenza vaccines designed to elicit such bNAbs are also in clinical development.
Surender Khurana +3 more
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Structural and functional relationship between the receptor recognition and neuraminidase activities of the Newcastle disease virus hemagglutinin-neuraminidase protein: Receptor recognition is dependent on neuraminidase activity [PDF]
The terminal globular domain of the paramyxovirus hemagglutinin-neuraminidase (HN) glycoprotein spike has a number of conserved residues that are predicted to form its neuraminidase (NA) active site, by analogy to the influenza virus neuraminidase ...
Paul J. Mahon +13 more
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Influenza A viruses are important pathogens for humans and for many birds and mammals. Hemagglutinin and neuraminidase are the major surface proteins of this enveloped RNA virus. Hemagglutinin requires proteolytic cleavage for activation, but because the
Jeffery K. Taubenberger
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Detection of Antibodies against H5 and H7 strains in Birds: Evaluation of Influenza Pseudovirus Particle Neutralization Tests [PDF]
Introduction: Avian influenza viruses circulate in bird populations, and it is important to maintain and uphold our knowledge of the viral strains that are currently of interest in this context.
Lundkvist, Åke, +11 more
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Adjuvant-free immunization with hemagglutinin-Fc fusion proteins as an approach to influenza vaccines [PDF]
The hemagglutinins (HAs) of human H1 and H3 influenza viruses and avian H5 influenza virus were produced as recombinant fusion proteins with the human immunoglobulin Fc domain.
Temperton, Nigel J. +24 more
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The standard method to quantify the hemagglutinin content of influenza virus vaccines is the single radial immunodiffusion assay. This assay primarily relies on polyclonal antibodies against the head domain of the influenza virus hemagglutinin, which is ...
Madhusudan Rajendran +8 more
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