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Genes Dev. 1989 Dec;3(12A):1926-39.

The gene encoding ARS-binding factor I is essential for the viability of yeast.

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Division of Chemistry, California Institute of Technology, Pasadena 91125.


The gene encoding a yeast ARS-binding protein, ABF I, has been cloned by screening a genomic lambda gt11 library using monoclonal and polyclonal antibodies against ABF I. ABF I is of interest because it not only binds to ARSs but also to the 5'-flanking region of genes encoding proteins involved in transcription, translation, respiration, and cell-cycle control. The cloned gene has been used to prepare null mutants, which further demonstrate the importance of the ABF I protein by showing that it is essential for vegetative growth. ABF1 maps to chromosome V. The DNA sequence of the ABF1 gene reveals several motifs characteristic of DNA-binding proteins but shows no overall similarity to any protein of known function.

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