FimA plasmid construction and protein purification of Porphyromonas gingivalis / 实用口腔医学杂志
Journal of Practical Stomatology
; (6): 168-171, 2018.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-697478
Responsible library:
WPRO
ABSTRACT
Objective:
To construct gine expression plasmid and to purify the protein of fimbriae(FimA) of Porphyromonas gingivalis (P. gingivalis).Methods:
The bacteria DNA was extracted from P. gingivalis by using commercial kit. FimA gene was cloned after PCR. Plasmid was constructed and transformed into competent cells. Optimal conditions of protein induction were chosen. The fusionprotein was purified by Glutathione S-Transferase affinity chromatography. Fusion protein was confirmed by Western blot method.Results:
The highest protein expression by the constructed plasmid was obtained at the low temperature and high concentration after 12 hours induction. The protein was confirmed by Western blot.Conclusion:
A highly purified P. gingivalis FimA protein was successfully obtained.
Full text:
Available
Database:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2018
Document type:
Article