Influenza B virus victoria group with a new glycosylation site was epidemic in Japan in the 2002-2003 season.
نویسندگان
چکیده
In the 2002-2003 season, influenza B virus Victoria strains were epidemic after a 6-year absence in Kobe City, Japan. They reacted poorly to the immune ferret sera prepared for use against the previous strain. An amino acid substitution in the HA1 region caused them to acquire an N-linked glycosylation site.
منابع مشابه
Variation of the conserved neutralizing epitope in influenza B virus victoria group isolates in Japan.
For almost 20 years, the neutralizing-epitope site specific for influenza B virus Victoria group isolates was conserved at the "tip" of the hemagglutinin molecule; however, it was not detected in half of the isolates from the 2002-2003 epidemic in Japan. Amino acid substitutions (D164E or N165K) were observed at the "tip", and the epitope was altered. The viral antigenicities were affected, and...
متن کاملDiscovery of the neutralizing epitope common to influenza B virus victoria group isolates in Japan.
Monoclonal antibody 9B2 possesses hemagglutination inhibition activity against all the 2002/2003 influenza B virus Victoria group isolates in Kobe, Japan, as well as representative strains isolated between 1987 and 1997. The 9B2 epitope localizes three-dimensionally in the vicinity of antigenic site A of the hemagglutinin molecule, and amino acid substitutions in this region affected the bindin...
متن کاملBacillus subtilis as a Host for Recombinant Hemagglutinin Production of the Influenza A (H5N1) Virus
Abstract Background and Aims: Influenza A(H5N1) viruses circulating in animals might evolve and acquire the ability to spread from human to human and thus start a pandemic. Hemagglutinin (HA) has been shown to play a major role in binding of influenza virus to its target cell and the main neutralizing antibody responses elicit against this region. Recent studies have shown that...
متن کاملContemporary H3N2 influenza viruses have a glycosylation site that alters binding of antibodies elicited by egg-adapted vaccine strains
H3N2 viruses continuously acquire mutations in the hemagglutinin (HA) glycoprotein that abrogate binding of human antibodies. During the 2014-2015 influenza season, clade 3C.2a H3N2 viruses possessing a new predicted glycosylation site in antigenic site B of HA emerged, and these viruses remain prevalent today. The 2016-2017 seasonal influenza vaccine was updated to include a clade 3C.2a H3N2 s...
متن کاملHaemagglutinin mutations and glycosylation changes shaped the 2012/13 influenza A(H3N2) epidemic, Houston, Texas.
While the early start and higher intensity of the 2012/13 influenza A virus (IAV) epidemic was not unprecedented, it was the first IAV epidemic season since the 2009 H1N1 influenza pandemic where the H3N2 subtype predominated. We directly sequenced the genomes of 154 H3N2 clinical specimens collected throughout the epidemic to better understand the evolution of H3N2 strains and to inform the H3...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 42 7 شماره
صفحات -
تاریخ انتشار 2004