The STAT 4 protein is a transcription factor activated by hormone and cytokines. STAT 4 is most similar to STAT 1 (52%) and STAT 3 (47%). Functionally STAT 4 is similar to other STAT family members in that it can be tyrosine phosphorylated by JAK 1 or JAK 2. STAT 4 forms homodimers and heterodimers with related STAT family members. Tyrosine phosphorylated STAT 4 can bind the interferon g activated site (GAS), and serine phosphorylation is also required for maximal transcriptional activity. STAT 4 expression is restricted to the thymus, spleen, and testis.
Suitable for use in Western Blot and Immunohistochemistry. Other applications not tested.
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.