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Basic Characteristics of Mutations
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Mutation Site
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C24G |
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Mutation Site Sentence
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Western blot assay showed that the E6 mutant with substitution of Gly for Leu at amino acid site 50 and E7 mutant with substitution of Gly for Cys-24 and Glu-26 had no effect on their stability and antigenicity, but change of the Cys at position 91 of E7 dramatically reduced its stability and antigencity. |
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Mutation Level
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Nucleotide level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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E7 |
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Standardized Encoding Gene
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E7
|
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Genotype/Subtype
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HPV16 |
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Viral Reference
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-
|
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Functional Impact and Mechanisms
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Disease
|
-
|
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Immune
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- |
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Target Gene
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-
|
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Clinical and Epidemiological Correlations
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|
Clinical Information
|
- |
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Treatment
|
- |
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Location
|
- |
|
Literature Information
|
|
PMID
|
12196821
|
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Title
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[Modification of HPV type 16 E6 and E7 genes, and analysis of stability and immunogenicity of the modified proteins]
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Author
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Zhi H,Han L,Ren J,Tian H,Luo W,Liang Y,Ruan L
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Journal
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Zhonghua shi yan he lin chuang bing du xue za zhi = Zhonghua shiyan he linchuang bingduxue zazhi = Chinese journal of experimental and clinical virology
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Journal Info
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2002 Jun;16(2):124-7
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Abstract
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BACKGROUND: To select the mutants of HPV type 16 E6 and E7 genes suitable for construction of vaccine for treatment of cervical cancer. METHODS: E6 and E7 genes were modified by site-directed mutagenesis. Several recombinant vaccina viruses were constructed by inserting the E6 or E7 mutants into the genome of vaccina virus Tiantan strain and employed to study their antigenicity. RESULTS: Western blot assay showed that the E6 ?mutant? with substitution of Gly for Leu at amino acid site 50 and E7 mutant with substitution of Gly for Cys-24 and Glu-26 had no effect on their stability and antigenicity, but change of the Cys at position 91 of E7 dramatically reduced its stability and antigencity. Conclusion The results confirmed that the Zinc-finger structure at the E7 C-terminal? plays an important role in the integrity and stability of E7 protein.
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Sequence Data
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-
|