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http://dx.doi.org/10.5392/JKCA.2021.21.04.825

A study on the Aptamer Specific Detection on P. gingivalis  

Shin, Ae-Ri (광주보건대학교 치위생과)
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Abstract
In this study, by selecting specific aptamers that selectively detection on P. gingivalis, the main cause of periodontal disease, and purifying and identifying protein molecules that bind to the selected aptamers, the mechanism of action of P. gingivalis was investigated. A DNA library having 39 random sequences was prepared, and aptamers with specificity for P. gingivalis were selected using the SELEX method, and the nucleotide sequence was analyzed by cloning using PCR2.1 cloning vector. 8 of aptamers with different nucleotide sequences were selected, and modified weston blot was performed using APG-3 among the selected aptamers to identify 11 proteins that act directly, and proteins were analyzed. As a result, a protein that selectively binds to P. gingivalis was isolated and identified. Therefore, aptamer selectively binds and attaches to proteins related to inhibition of sugar metabolism and cell activity of P. gingivalis, suggesting the possibility of a sensor for diagnosis of periodontal disease.
Keywords
P. gingivalis; Aptamer; SELEX;
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