Recombinant human ATF3 protein
ATF3 (activating transcription factor 3) is a member of the mammalian activation transcription factor/cAMP responsive element-binding (CREB) protein family of transcription factors. This protein binds the cAMP response element (CRE) (consensus: 5'-GTGACGT[AC][AG]-3'), a sequence present in many viral and cellular promoters. Multiple transcript variants encoding two different isoforms have been found for this gene. The longer isoform represses rather than activates transcription from promoters with ATF binding elements. The shorter isoform (deltaZip2) lacks the leucine zipper protein-dimerization motif and does not bind to DNA, and it stimulates transcription, it is presumed, by sequestering inhibitory co-factors away from the promoter.
Product Specifications
Product Name Alternative
Expression System
E.coli
Antigen Species
Human
Tag
Non-Tagged
Applications
SDS-PAGE, Denatured
Concentration
1 mg/mL (determined by Bradford assay)
Purity
> 90% by SDS-PAGE
Molecular Weight
20.6 kDa (181aa)
Additionnal Information
References & Citations
Lv D., et al. (2011) IuBMB Life. 63 (1) :62-9. ; ; Chen BP., et al. (1994) J Biol Chem 269 (22) : 15819-26.
Other References
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 2M urea, 20% glycerol
Scientific Category
Signal Transduction
NCBI Accession Number
NP_001665
Uniprot Accession Number
P18847
Species
Human
AA Sequence
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