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Treponema is a genus of spiral-shaped bacteria. The major treponeme species of human pathogens is Treponema pallidum, whose subspecies are responsible for diseases such as syphilis, bejel, and yaws. Treponema carateum is the cause of pinta. Treponema paraluiscuniculi is associated with syphilis in rabbits.
Determination method of multivalent antigen sequence of anti-periodontitis red complex
PendingCN122081364AImproving immunogenicityHighly conservativeBacterial antigen ingredientsHydrolasesEnzyme digestionTGE VACCINE
The invention belongs to the technical field of biology, and discloses a method for determining a multivalent antigen sequence of an anti-periodontitis red complex, which comprises the following steps: firstly, screening out key virulence factor antigens (FimA-II, RgpA, Msp and BspA) from three core pathogenic bacteria of the red complex: porphyromonas gingivalis, treponema denticola and fusisterone; then, independently cloning each antigen gene to a pUC57 cloning vector, constructing a single antigen recombinant plasmid, and avoiding intergene interference by designing a specific enzyme cutting site; and finally, through plasmid transformation, positive clone screening and double enzyme digestion verification, the plasmid quality is ensured. The obtained single antigen plasmid can be flexibly combined and used, is beneficial to subsequent multivalent vaccine development, and has the advantages of wide antigen coverage, high expression reliability, flexible construction strategy, easiness in industrialization and the like.
Owner:JINYUE ZHICHENG (LIAONING) BIOTECHNOLOGY CO LTD