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Cell Signaling C-Fos Antibody
Cell Signaling C-Fos Antibody - CSIG (Additional S&H or Hazmat Fees May Apply)
List Price
$129.00
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$129.00
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NETA PART: | CSIG-4384T |
MFG.PART: | 4384T |
UNSPSC: | 12352203 |
Manufacturer: | Cell Signaling |
Size | 20 µl |
Reactivity | H M R |
Sensitivity | Endogenous |
Molecular Weight (kDa) | 62 |
Source/Isotype | Rabbit |
Application/Dilution | {Western Blotting: 1:1000} |
Storage | Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody. |
Specificity/Sensitivity | c-Fos Antibody detects endogenous levels of total c-Fos protein. The antibody does not cross-react with other Fos proteins, including FosB, FRA1 and FRA2. |
Species Reactivity | Human, Mouse, Rat |
Source/Purification | Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to amino acids near the carboxy-terminus of human c-Fos protein. Antibodies are purified by protein A and peptide affinity chromatography. |
Background | The Fos family of nuclear oncogenes includes c-Fos, FosB, Fos-related antigen 1 (FRA1), and Fos-related antigen 2 (FRA2) (1). While most Fos proteins exist as a single isoform, the FosB protein exists as two isoforms: full-length FosB and a shorter form, FosB2 (Delta FosB), which lacks the carboxy-terminal 101 amino acids (1-3). The expression of Fos proteins is rapidly and transiently induced by a variety of extracellular stimuli, including growth factors, cytokines, neurotransmitters, polypeptide hormones, and stress. Fos proteins dimerize with Jun proteins (c-Jun, JunB, and JunD) to form Activator Protein-1 (AP-1), a transcription factor that binds to TRE/AP-1 elements and activates transcription. Fos and Jun proteins contain the leucine-zipper motif that mediates dimerization and an adjacent basic domain that binds to DNA. The various Fos/Jun heterodimers differ in their ability to transactivate AP-1 dependent genes. In addition to increased expression, phosphorylation of Fos proteins by Erk kinases in response to extracellular stimuli may further increase transcriptional activity (4-6). Phosphorylation of c-Fos at Ser32 and Thr232 by Erk5 increases protein stability and nuclear localization (5). Phosphorylation of FRA1 at Ser252 and Ser265 by Erk1/2 increases protein stability and leads to overexpression of FRA1 in cancer cells (6). Following growth factor stimulation, expression of FosB and c-Fos in quiescent fibroblasts is immediate, but very short-lived, with protein levels dissipating after several hours (7). FRA1 and FRA2 expression persists longer, and appreciable levels can be detected in asynchronously growing cells (8). Deregulated expression of c-Fos, FosB, or FRA2 can result in neoplastic cellular transformation; however, Delta FosB lacks the ability to transform cells (2,3). |
SKU | CSIG-4384T |
---|---|
Supplier Part Number | 4384T |
UM | EA |
UNSPSC | 12352203 |
Manufacturer | Cell Signaling |
MSDS URL | https://www.cellsignal.com/contents/technical/safety-data-sheet-(sds)/resources-safety-data-sheets |
Temperature | -20C |
ProductLine | CSIG |
Qty | 1 |
MinOrderQty | 1 |
Weight | 7.00 |
Lead Time | 5 Business Days |