SWI/SNF complexes facilitate gene activation and transcription factor binding byaltering repressive chromatin structures. In mammals,
SWI/SNF complexes are present inmutliple forms that include 9-12 proteins called BRG1-associated factors (BAFs), whichrange in molecular
weight from 47 to 250 kDa. BAF60 is the homologue of the yeastSWP70 subunit of the yeast SWI/SNF complex that regulates
glucocorticoidtranscription. Three isoforms of BAF60 are BAF60a, BAF60b, and BAF60c. BAF60a isubiquitously expressed and is present in
the 200-kDa BRG1 complex. BAF60b andBAF60c are expressed preferentially in muscle and pancreas and may be subunits of adistinct
complex that shares some subunits with BRG1 complex. In hematopoietic cells,a SWI/SNF related-complex (PYR) contains BAF57, INI1,
BAF60a, and BAF170. This complex binds a 250 bp pyrimidine-rich element between the fetal and adult ß-globingenes and may facilitate
human fetal-to-adult globin gene switching. Thus, BAF60proteins are components of multiple SWI/SNF complexes that regulate the
transcriptionof various genes.
原厂资料:
注意事项:
1.Since applications vary, each investigator should titrate the reagent to obtain optimal results.
2.Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.