DNA-binding protein RAP1

UniProtKB accession:  P11938

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Essential regulatory protein in yeast whose DNA-binding sites are found at three types of chromosomal elements: promoters, silencers, and telomeres (PubMed:3315231, PubMed:8194531). RAP1 is also involved in the regulation of telomere structure, where its binding sites are found within the terminal poly[C(1-3)A] sequences (PubMed:3315231, PubMed:8194531). The opposite regulatory functions of RAP1 are not intrinsic to its binding sites but, instead, result from interactions with different factors at promoters and silencers (PubMed:7867933, PubMed:8508768). RAP1 mediates repression of the HM loci and telomeres by recruiting the SIR complex (PubMed:7867933). May also target the binding of RIF1 and RIF2 to silencers and telomeres (PubMed:7867933). Forms with GCR1 a transcriptional activation complex that is required for expression of glycolytic and ribosomal gene (PubMed:8508768).