Identification of peptide mimotopes of an abroad-spectrum neutralizing epitope of highly pathogenic avian influenza hemagglutinin / 病毒学报
Chinese Journal of Virology
;
(6): 421-426, 2008.
Article
Dans Chinois
| WPRIM
| ID: wpr-334784
ABSTRACT
A monoclonal antibody (8H5), which showed strong neutralization activity against 33 strains of H5N1 viruses isolated from hosts at various regions from 2002 to 2006, was characterized in our lab recently. This result indicated the presence of highly conserved neutralizing site on hemagglutinin (HA) of various H5N1 subtypes. In the present study, the peptide phage display technique was applied to generate mimotope of the conserved neutralizing epitope recognized by 8H5 mAb. Five peptides displayed on phage were identified to specifically bind to 8H5 mAb. One of the five peptides, 123, was further displayed on the virus-like particle assembled from aa 1-149 fragment of HBcAg. The chimeric particle HBc-T123 conserved the specific binding to 8H5 mAb, and competed with H5N1 viruses for 8H5 mAb. The antiserum induced by HBc-T123 intensively stained on SF21 cells infected by recombinant baculovirus containing HA gene of YU22 virus, indicating the production of cross-reactive antibody to H5N1 HA.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Virologie
/
Données de séquences moléculaires
/
Chimie
/
Séquence d'acides aminés
/
Banque de peptides
/
Glycoprotéine hémagglutinine du virus influenza
/
Allergie et immunologie
/
Grippe humaine
/
Sous-type H5N1 du virus de la grippe A
/
Génétique
Type d'étude:
Etude diagnostique
Limites du sujet:
Animaux
/
Humains
langue:
Chinois
Texte intégral:
Chinese Journal of Virology
Année:
2008
Type:
Article
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