Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1992-4-13
pubmed:abstractText
RAP1 is an essential sequence-specific DNA-binding protein in Saccharomyces cerevisiae whose binding sites are found in a large number of promoters, where they function as upstream activation sites, and at the silencer elements of the HMR and HML mating-type loci, where they are important for repression. We have examined the involvement of specific regions of the RAP1 protein in both repression and activation of transcription by studying the properties of a series of hybrid proteins containing RAP1 sequences fused to the DNA-binding domain of the yeast protein GAL4 (amino acids 1 to 147). GAL4 DNA-binding domain/RAP1 hybrids containing only the carboxy-terminal third of the RAP1 protein (which lacks the RAP1 DNA-binding domain) function as transcriptional activators of a reporter gene containing upstream GAL4 binding sites. Expression of some hybrids from the strong ADH1 promoter on multicopy plasmids has a dominant negative effect on silencers, leading to either partial or complete derepression of normally silenced genes. The GAL4/RAP1 hybrids have different effects on wild-type and several mutated but functional silencers. Silencers lacking either an autonomously replicating sequence consensus element or the RAP1 binding site are strongly derepressed, whereas the wild-type silencer or a silencer containing a deletion of the binding site for another silencer-binding protein, ABF1, are only weakly affected by hybrid expression. By examining a series of GAL4 DNA-binding domain/RAP1 hybrids, we have mapped the transcriptional activation and derepression functions to specific parts of the RAP1 carboxy terminus.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-15981337, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-1881914, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-1904543, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-1990267, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2005793, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2005909, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2010086, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2010087, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2187178, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2196565, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2199331, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2205398, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2225074, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2237406, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2405258, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2406570, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2442619, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2471670, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2511628, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2523395, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2651900, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2659436, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2684414, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2685570, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2685757, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2697465, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2720778, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2820718, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2944600, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2957064, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-2968500, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3023862, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3023863, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3028647, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3046937, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3072472, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3115591, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3275867, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3295867, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3297920, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3301327, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3315230, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3315231, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3325825, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3345568, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3412449, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3520552, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3888409, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-3912170, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-6310321, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-6310322, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-6329735, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-6336730, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-6397296, http://linkedlifedata.com/resource/pubmed/commentcorrection/1545802-7040681
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0270-7306
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1209-17
pubmed:dateRevised
2010-9-7
pubmed:meshHeading
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