Screening out CpG immunostimulatory sequence-specific DNA-binding proteins with Yeast-one-hybrid system / 第二军医大学学报
Academic Journal of Second Military Medical University
;
(12)1985.
Article
in Chinese
| WPRIM
| ID: wpr-677409
ABSTRACT
Objective:
To screen out DNA binding proteins specifically recognizing CpG immunostimulatory sequence (ISS) for further investigating the molecular mechanisms of ISS.Methods:
Yeast one hybrid system was adapted in screening a human bone marrow cDNA library using 4 copies of ISS as bait. The ISS binding activity of the positive clone was confirmed by electrophoretic mobility shift assay (EMSA).Results:
Four dual positive colonies were obtained, two of them encoded proteins with unknown functions. The other 2 encoded light chains of immunoglobulin with amino sequences homology to anti DNA Ab and HBsAb respectively. EMSA showed HBsAb specifically bound to CpG ODN at pH6.4 and pH 5.8.Conclusion:
HBsAb may have ISS specific DNA binding activity.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Diagnostic study
/
Screening study
Language:
Chinese
Journal:
Academic Journal of Second Military Medical University
Year:
1985
Type:
Article
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