Reactivity of German Cockroach Allergen, Bla g 2, Peptide Fragments to IgE Antibodies in Patients' Sera
The Korean Journal of Parasitology
;
: 243-246, 2008.
Article
Dans Anglais
| WPRIM
| ID: wpr-163952
ABSTRACT
Bla g 2 is a cockroach allergen of great importance. This study was conducted to identify IgE-binding epitope(s) of Bla g 2 using the recombinant protein technique. Approximately 50% of tested sera showed IgE reactivity to Pichiaexpressed Bla g 2 (PrBla g 2) and E. coli-expressed Bla g 2 (ErBla g 2). Only 5.3% of serum samples showed stronger reactivity to PrBla g 2 than ErBla g 2, indicating that serum was reactive to conformational or carbohydrate epitopes. The full-length and 5 peptide fragments of Bla g 2 were produced in E. coli. All fragments showed IgE-binding activity to the cockroach-allergy patients' sera. Specifically, peptide fragments of amino acid residue 1-75 and 146-225 appeared to be important for IgE-binding. The information about the IgE-binding epitope of Bla g 2 can aid in the diagnosis and treatment for cockroach allergies.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Immunoglobuline E
/
Régulation de l'expression des gènes
/
Aspartic acid endopeptidases
/
Séquence d'acides aminés
/
Blattes
/
Anticorps
/
Épitopes
Limites du sujet:
Animaux
/
Humains
langue:
Anglais
Texte intégral:
The Korean Journal of Parasitology
Année:
2008
Type:
Article
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