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  • Title: APOBEC-1 dependent cytidine to uridine editing of apolipoprotein B RNA in yeast.
    Author: Dance GS, Sowden MP, Yang Y, Smith HC.
    Journal: Nucleic Acids Res; 2000 Jan 15; 28(2):424-9. PubMed ID: 10606639.
    Abstract:
    Cytidine to uridine editing of apolipoprotein B (apoB) mRNA requires the cytidine deaminase APOBEC-1 as well as a tripartite sequence motif flanking a target cytidine in apoB mRNA and an undefined number of auxiliary proteins that mediate RNA recognition and determine site-specific editing. Yeast engineered to express APOBEC-1 and apoB mRNA supported editing under conditions of late log phase growth and stationary phase. The cis -acting sequence requirements and the intracellular distribution of APOBEC-1 in yeast were similar to those described in mammalian cells. These findings suggest that auxiliary protein functions necessary for the assembly of editing complexes, or 'editosomes', are expressed in yeast and that the distribution of editing activity is to the cell nucleus.
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