title: Specific protein binding to far upstream activating sequences in polymerase II promoters.
abstract: A binding activity specific for the upstream activating sequence of the GAL1-GAL10 promoter of Saccharomyces cerevisiae has been purified 220-fold on the basis of a nitrocellulose filter-binding assay. The binding activity is enriched in a nuclear preparation and is likely to be the GAL4 gene product. DNase I-protection mapping patterns reveal binding to two 30-base-pair regions at the boundaries of the sequence. A nearly identical mapping pattern is obtained with the coordinately regulated GAL7 promoter. The four 30-base-pair regions of binding in the two promoters are closely homologous, with a core consensus sequence of C-G-CG-TG-C-A-A-C-A-G-T-G-C-T-C-C-G-A-A- GC-G-A-T. A synthetic oligonucleotide with such a sequence competes with the upstream activating sequence in the binding reaction.
mesh_terms: D001483:Base Sequence; D004271:DNA, Fungal / Q000235:genetics; D004268:DNA-Binding Proteins / Q000235:genetics; D003850:Deoxyribonuclease I; D005690:Galactose / Q000235:genetics; D005786:Gene Expression Regulation; D005800:Genes, Fungal; D011401:Promoter Regions, Genetic; D011485:Protein Binding; D012319:RNA Polymerase II / Q000235:genetics*; D012441:Saccharomyces cerevisiae / Q000235:genetics*; D014157:Transcription Factors / Q000235:genetics*
chemical_list: D004271:DNA, Fungal; D004268:DNA-Binding Proteins; D014157:Transcription Factors; D012319:RNA Polymerase II; D003850:Deoxyribonuclease I; D005690:Galactose