Vaccine used for preventing toxoplasma gondii infection and preparation method therefor
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United States of America Patent
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Dec 27, 2022
Grant Date -
Feb 10, 2022
app pub date -
Oct 22, 2018
filing date -
Jun 19, 2018
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Abstract
Provided is a protein having Toxoplasma immunogenicity, the protein being a cyclophilin mutant protein and consisting of the amino acid sequence as shown in SED 2. Further provided is a nucleic acid that may encode a protein having Toxoplasma immunogenicity, which has the nucleic acid sequence as shown in SEQ ID NO. 1. Further provided is a vaccine, which is obtained by double-digesting a Toxoplasma antigen gene and then linking the same to a prokaryotic expression vector such as pET28a, and transforming the same into a prokaryotic expression engineering strain such as BL21(DE3), thereby inducing the high-efficiency expression thereof, wherein the inducing the high-efficiency expression thereof, wherein the purified protein is a soluble protein which maintains specific immunogenicity thereof.
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