Shanghai Journal of Stomatology ›› 2016, Vol. 25 ›› Issue (6): 678-681.

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Preparation and identification of polyclonal antibody of Streptococcus salivarius 57.I urease

WANG Yan1, TAO Dan-ying2, FENG Xi-ping2   

  1. 1.Department of Preventive Dentistry, Shanghai Stomatological Hospital. Shanghai 200001;
    2.Department of Preventive Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Stomatology. Shanghai 200011, China
  • Received:2016-05-11 Online:2016-12-25 Published:2016-12-29

Abstract: PURPOSE: To prepare and identify polyclonal antibody of Streptococcus salivarius 57.I urease. METHODS: The biggest structural subunit of Streptococcus salivarius 57.I urease, UreC, was obtained by gene clone, IPTG-induced expression, and purification through affinity chromatography. Anti-sera and polyclonal antibody were raised by immunizing rabbits with purified UreC. Western blot was utilized to detect the specific combination of polyclonal antibody with UreC. RESULTS: Purified UreC protein was prepared and used as antigen to immunize rabbits. Polyclonal antibody was obtained, and Western blot displayed a specific band of the polyclonal antibody with UreC about 62 kD as anticipated. CONCLUSIONS: Polyclonal antibody against Streptococcus salivarius 57.I urease is obtained, which provides an important tool to explore the function of urease and its relationship with dental caries.

Key words: Streptococcus salivarius, Urease, Antibody

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