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Basic Characteristics of Mutations
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Mutation Site
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C1575T |
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Mutation Site Sentence
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Alignment with the AD169 DNA reference sequence identified 4 point mutations of the virus at 1509 (T-C), 1575 (C-T), 1794 (T-C), and 1815 (C-G), and only the last mutation resulted in one amino acid mutation to D605E. |
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Mutation Level
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Nucleotide level |
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Mutation Type
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Synonymous substitution |
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Gene/Protein/Region
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UL97 |
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Standardized Encoding Gene
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UL97
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Genotype/Subtype
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- |
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Viral Reference
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AD169
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Functional Impact and Mechanisms
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Disease
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Cytomegalovirus infections
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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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- |
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Treatment
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- |
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Location
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- |
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Literature Information
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PMID
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24752100
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Title
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[Drug susceptibility and UL97 gene mutation analysis of cytomegalovirus in recipients of hematopoietic stem cell transplantation]
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Author
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Zeng A,Dong D,Cui X,Guo M,Zou D,Fang J
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Journal
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Nan fang yi ke da xue xue bao = Journal of Southern Medical University
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Journal Info
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2014 Apr;34(4):519-22
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Abstract
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OBJECTIVE: To monitor human cytomegalovirus (HCMV) drug resistance in recipients of hematopoietic stem cell transplantation by phenotypic and genotypic methods. METHODS: HCMV clinical isolates was isolated from the urine of hematopoietic stem cell transplantation recipients treated with GCV. Tissue cell infection median dose (TCID50) of the isolates was calculated using Reed-Muench method, and their drug susceptibility was determined by plaque reduction assay. We amplified the UL97 DNA fragment of the virus by nested PCR followed by automated DNA sequencing. RESULTS: HCMV clinical strain isolated from the urine samples of the recipients using a human fibroblast cell line showed a TCID50 value of 10(-4.618)/0.1 ml and a 50% inhibitory concentration (IC50) to GCV of 5.847 micromol/L, suggesting its sensitivity to GCV. Alignment with the AD169 DNA reference sequence identified 4 point mutations of the virus at 1509 (T-C), 1575 (C-T), 1794 (T-C), and 1815 (C-G), and only the last mutation resulted in one amino acid mutation to D605E. No gene mutation was found in relation to GCV resistance. CONCLUSIONS: Phenotypic and genotypic assays were established to examine antiviral drug resistance of HCMV in recipients of hematopoietic stem cell transplantation. We did not find any drug resistance of the clinical HCMV isolate.
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Sequence Data
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-
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