The ubiquitously expressed cellular upstream stimulatory factor (USF) consists of USF-1 and USF-2 polypeptides which independently exhibit site-specific DNA binding and are members of the c-Myc-related family of regulatory factors containing helix-loop-helix domains. USF also contains a leucine repeat that is required for efficient DNA binding. USF was originally identified as an up- stream stimulatory factor that binds the core sequence CACGTG in the adeno- virus late promoter. These findings, together with the demonstration of coop- erative interaction between USF and the initiator-binding protein, TFII-I, raises the possibility of a more general involvement of USF in transcriptional regula- tion. While expression of both USF-1 and USF-2 species is ubiquitous, different ratios of USF homo- and heterodimers are found in different cell types.
antibody vendorid
sc-229
antibody vendorname
Santa Cruz Biotechnology
antibody
USF-1
cell description
epithelial cell line derived from a lung carcinoma tissue. (PMID: 175022), "This line was initiated in 1972 by D.J. Giard, et al. through explant culture of lung carcinomatous tissue from a 58-year-old caucasian male." - ATCC, newly promoted to tier 2: not in 2011 analysis
cell karyotype
cancer
cell lineage
endoderm
cell organism
human
cell sex
M
cell
A549
controlid
SL6021
datatype description
Chromatin IP Sequencing
datatype
ChipSeq
lab description
Myers - Hudson Alpha Institute for Biotechnology
lab
HudsonAlpha
labexpid
SL7279,SL6593
protocol description
Faster ChIP protocol & AMpure XP size selection for ChIP-seq (Myers)
Instrument model unknown. ("Illumina Genome Analyzer" specified by default). For more information, see http://genome.ucsc.edu/cgi-bin/hgTrackUi?db=hg19&g=wgEncodeHaibTfbs