Expression of GBD gene of Streptococcus mutans glucan binding protein A in mammalian cells

Ling yun Su, Bu ling Wu, Fu yang Li, Qun Lu

Research output: Contribution to journalArticle


OBJECTIVE: To evaluate the expression of recombinant plasmid pcDNA3.1/GBD of glucan binding protein of Streptococcus mutans in mammalian cells COS-7. METHODS: Eukaryotic plasmid carrying encoding gene of GBD of Streptococcus mutans gbpA was constructed and the plasmid was introduced into COS-7 cells by Lipofectamine reagent. The transient expressed protein in COS-7 cells was detected by immunochemistry technique. RESULTS: The positive expression was detected in plasma of the cells which were transfected with recombinant plasmid pcDNA3.1/GBD. The cells which were transfected with pcDNA3.1 were negative. CONCLUSION: GBD can translate and express in COS-7 cells after transfected with recombinant plasmid pcDNA3.1/GBD. The expressed protein locates in the plasma and the protein is able to combine with anti-GbpA antibody. The expressed protein has the antigenicity and is a candidate gene vaccine.

Original languageEnglish (US)
Pages (from-to)10-12
Number of pages3
JournalHua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology
Issue number1
StatePublished - Feb 2004


ASJC Scopus subject areas

  • Medicine(all)

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