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  3. c-Fos (E2I7R) Rabbit Monoclonal Antibody (InTraSeq™ 3' Conjugate 3057)
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c-Fos (E2I7R) Rabbit Monoclonal Antibody (InTraSeq™ 3' Conjugate 3057) #71766

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  • SCA

    Product Specifications

    REACTIVITY H M
    SENSITIVITY Endogenous
    MW (kDa)
    Source/Isotype Rabbit IgG
    Application Key:
    • SCA-Single Cell Analysis 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Storage

    Supplied in PBS (pH 7.2), 2 mM EDTA, 0.05% Triton X-100, 2 mg/mL BSA, and 50% glycerol. Store at -20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    c-Fos (E2I7R) Rabbit Monoclonal Antibody (InTraSeq™ 3' Conjugate 3057) recognizes endogenous levels of total c-Fos protein. This antibody conjugate does not cross-react with other Fos proteins, including FosB and FRA1.

    Species Reactivity:

    Human, Mouse

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Ala286 of human c-Fos protein.

    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).

    Alternate Names

    activator protein 1; AP-1; C-FOS; cellular oncogene c-fos; Cellular oncogene fos; cfos; FBJ murine osteosarcoma viral (v-fos) oncogene homolog (oncogene FOS); FBJ murine osteosarcoma viral oncogene homolog; FOS; Fos proto-oncogene, AP-1 trancription factor subunit; Fos proto-oncogene, AP-1 transcription factor subunit; G0/G1 switch regulatory protein 7; G0S7; p55; Protein c-Fos; Proto-oncogene c-Fos; v-fos FBJ murine osteosarcoma viral oncogene homolog

    Database Links

    UniProt ID: P01100


    Entrez-Gene Id: 2353


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