FOS Antibody

FOS

Activator protein 1 antibody; AP 1 antibody; C FOS antibody; Cellular oncogene c fos antibody; Cellular oncogene fos antibody; FBJ murine osteosarcoma viral (v fos) oncogene homolog (oncogene FOS) antibody; FBJ murine osteosarcoma viral oncogene homolog antibody; FBJ murine osteosarcoma viral v fos oncogene homolog antibody; FBJ Osteosarcoma Virus antibody; FOS antibody; FOS protein antibody; FOS_HUMAN antibody; G0 G1 switch regulatory protein 7 antibody; G0/G1 switch regulatory protein 7 antibody; G0S7 antibody; Oncogene FOS antibody; p55 antibody; proto oncogene c Fos antibody; Proto oncogene protein c fos antibody; Proto-oncogene c-Fos antibody; v fos FBJ murine osteosarcoma viral oncogene homolog antibody

Center-peptide of human FOS

The Fos family of nuclear oncogenes includes c-Fos, FosB, Fos-related antigen 1 (FRA1), and Fos-related antigen 2 (FRA2) . 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), that lacks the carboxy-terminal 101 amino acids . 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 . Phosphorylation of c-Fos at Ser32 and Thr232 by Erk5 increases protein stability and nuclear localization . Phosphorylation of FRA1 at Ser252 and Ser265 by Erk1/2 increases protein stability and leads to overexpression of FRA1 in cancer cells . 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 . FRA1 and FRA2 expression persists longer and appreciable levels can be detected in asynchronously growing cells . Deregulated expression of c-Fos, FosB, or FRA2 can result in neoplastic cellular transformation, however, Delta FosB lacks the ability to transform cells .

Affinity purification

Neuroscience

Center-peptide of Human FOS