Recombinant Rabbit monoclonal primary
Recombinant c-Fos Monoclonal Antibody (ET1701-95)
Store at +4C after thawing. Aliquot store at -20C or -80C. Avoid repeated freeze / thaw cycles.
1*TBS (pH7.4), 0.05% BSA, 40% Glycerol. Preservative: 0.05% Sodium Azide.
Protein A affinity purified.
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
Belongs to the bZIP family. Fos subfamily.
Expressed at very low levels in quiescent cells. When cells are stimulated to reenter growth, they undergo 2 waves of expression, the first one peaks 7.5 minutes following FBS induction. At this stage, the protein is localized endoplasmic reticulum. The second wave of expression occurs at about 20 minutes after induction and peaks at 1 hour. At this stage, the protein becomes nuclear.
Phosphorylated in the C-terminal upon stimulation by nerve growth factor (NGF) and epidermal growth factor (EGF). Phosphorylated, in vitro, by MAPK and RSK1. Phosphorylation on both Ser-362 and Ser-374 by MAPK1/2 and RSK1/2 leads to protein stabilization with phosphorylation on Ser-374 being the major site for protein stabilization on NGF stimulation. Phosphorylation on Ser-362 and Ser-374 primes further phosphorylations on Thr-325 and Thr-331 through promoting docking of MAPK to the DEF domain. Phosphorylation on Thr-232, induced by HA-RAS, activates the transcriptional activity and antagonizes sumoylation. Phosphorylation on Ser-362 by RSK2 in osteoblasts contributes to osteoblast transformation (By similarity).; Constitutively sumoylated with SUMO1, SUMO2 and SUMO3. Desumoylated by SENP2. Sumoylation requires heterodimerization with JUN and is enhanced by mitogen stimulation. Sumoylation inhibits the AP-1 transcriptional activity and is, itself, inhibited by Ras-activated phosphorylation on Thr-232.; In quiescent cells, the small amount of FOS present is phosphorylated at Tyr-10 and Tyr-30 by SRC. This Tyr-phosphorylated form is cytosolic. In growing cells, dephosphorylated by PTPN2. Dephosphorylation leads to the association with endoplasmic reticulum membranes and activation of phospholipid synthesis.
Nucleus, Endoplasmic reticulum, Cytoplasm.
The c-Fos oncogene was initially detected in two independent murine osteosarcoma virus isolates and an avian nephroblastoma virus. The cellular homolog, c-Fos, encodes a nuclear phospho-protein that is rapidly and transiently induced by a variety of agents and functions as a transcriptional regulator for several genes. In contrast to c-Jun proteins, which form homo- and heterodimers which bind to specific DNA response elements, c-Fos proteins are only active as heterodimers with members of the Jun gene family. Functional homologs of c-Fos include the Fra-1, Fra-2 and Fos B genes. In addition, selected ATF/CREB family members can form leucine zipper dimers with Fos and Jun. Different dimers exhibit differential specificity and affinity for AP-1 and CRE sites.