A functional -1 ribosomal frameshift signal in the human paraneoplastic Ma3 gene.
[No authors listed]
摘要
A bioinformatics approach to finding new cases of -1 frameshifting in the expression of human genes revealed a classical retrovirus-like heptanucleotide shift site followed by a potential structural stimulator in the paraneoplastic antigen Ma3 and Ma5 genes. Analysis of the sequence 3' of the shift site demonstrated that an RNA pseudoknot in Ma3 is important for promoting efficient -1 frame-shifting. Ma3 is a member of a family of six genes in humans whose protein products contain homology to retroviral Gag proteins. The -1 frameshift site and pseudoknot structure are conserved in other mammals, but there are some sequence differences. Although the functions of the Ma genes are unknown, the serious neurological effects of ectopic expression in tumor cells indicate their importance in the brain.
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基因功能
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原始数据
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文献解读
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