Cloning, expression,purification and immunological identification of Der f 11, paramyosin,a recombinant allergen of dust mite / 中国免疫学杂志
Chinese Journal of Immunology
;
(12): 736-739, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-452741
ABSTRACT
Objective:
To clone , express and purify of Dermatophagoides farinae ( Der f 11 ) , and then test its immunogenicity.Methods:
The gene coding for Der f 11 was synthesized ,and was then linked with the pET-32a vector.The expression plasmid pET32a(+)-Der f 11 was induced by IPTG.After purification of recombinant allergens Der 11 proteins through the Ni +affinity chromatography ,immunological allergic patients serum as the Primary antibody.Results:
We obtain high purity recombinant Der f 11 protein.The results of SDS-PAGE show that the expression product is about 118 KD.Recombinant allergen Der f 11 test 15 dust mites allergic patients serum specific IgE , positive rate was 20%.Conclusion:
Recombinant allergen Der f 11 obtained has the similar immunologic activity to natural Der f 11 protein.It can lay the foundation for the specific diagnosis ,treatment and further experimental studies of the dust mite allergy disease.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
Language:
Chinese
Journal:
Chinese Journal of Immunology
Year:
2014
Type:
Article
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