Signal transducer and activator of transcription 4 (STAT4) carries out a dual function of signal transduction and activation of transcription. STAT4 forms a homodimer or a heterodimer with related transcription factor STAT family members. STAT4 has a cytoplasmic localization and is translocated into the nucleus in response to activation by JAK, which phosphorylates STAT4 at a tyrosine residue. Various ligands, including interferons and growth factors, induce activation of the JAK kinases, which induce STAT activation. IL-12 has also been identified as an activator of STAT4. Serine phosphorylation is also required for maximal transcriptional activity. The highest level of STAT4 expression is observed in testis and in myeloid cells.
应用类型
ELISA,Immunoprecipitation,Western Blot,
免疫原
This antibody was prepared from whole rabbit serum produced by repeated immunizations with a synthetic peptide corresponding to a C-Terminal region near amino acids 725-749 of Mouse STAT-4.
来源宿主
Rabbit
反应性
Mus musculus (Mouse)
保存建议
Store vial at -20° C prior to opening. Aliquot contents and freeze at -20° C or below for extended storage. Avoid cycles of freezing and thawing. Centrifuge product if not completely clear after standing at room temperature. This product is stable for several weeks at 4° C as an undiluted liquid. Dilute only prior to immediate use.
