SALSA, a variant of yeast SAGA, contains truncated Spt7, which correlates with activated transcription.
Authors: Sterner David E; Belotserkovskaya Rimma; Berger Shelley L;
Journal:Proc Natl Acad Sci U S A
PubMed ID:12186975
'Spt-Ada-Gcn5 acetyltransferase (SAGA) is a previously described histone acetyltransferase/transcriptional coactivator complex in yeast. At promoters of certain genes (HIS3 and TRP3), SAGA has an inhibitory function involving a nonproductive TATA-binding protein interaction mediated by the Spt3 and Spt8 subunits. Related to this, Spt8-less SAGA is a major form of the ... More
Chromatin deacetylation by an ATP-dependent nucleosome remodelling complex.
Authors:Tong JK, Hassig CA, Schnitzler GR, Kingston RE, Schreiber SL
Journal:Nature
PubMed ID:9804427
'The dynamic assembly and remodelling of eukaryotic chromosomes facilitate fundamental cellular processes such as DNA replication and gene transcription. The repeating unit of eukaryotic chromosomes is the nucleosome core, consisting of DNA wound about a defined octamer of histone proteins. Two enzymatic processes that regulate transcription by targeting elements of ... More
A family of chromatin remodeling factors related to Williams syndrome transcription factor
Authors:Bochar DA, Savard J, Wang W, Lafleur DW, Moore P, Cote J, Shiekhattar R
Journal:Proc Natl Acad Sci U S A
PubMed ID:10655480
Chromatin remodeling complexes have been implicated in the disruption or reformation of nucleosomal arrays resulting in modulation of transcription, DNA replication, and DNA repair. Here we report the isolation of WCRF, a new chromatin-remodeling complex from HeLa cells. WCRF is composed of two subunits, WCRF135, the human homolog of Drosophila ... More
A method to identify serine kinase substrates. Akt phosphorylates a novel adipocyte protein with a Rab GTPase-activating protein (GAP) domain.
Authors: Kane Susan; Sano Hiroyuki; Liu Simon C H; Asara John M; Lane William S; Garner Charles C; Lienhard Gustav E;
Journal:J Biol Chem
PubMed ID:11994271
This study describes a method for the identification of the substrates of specific serine kinases. An antibody specific for the phosphomotif generated by the kinase is used to isolate phosphorylated substrates by immunoprecipitation, and the isolated proteins are identified by tandem mass spectrometry of peptides. This method was applied to ... More