Jun is a component of the transcription factor AP-1, and can constitute AP-1 activity either as a homodimer or as a heterodimer with Fos. By contrast with Fos, Jun is expressed constitutively, and can be activated by phosphorylation of serines 63 and/or 73. These sites are targets for the SAPK1/JNK family of protein kinases, and their phosphorylation states can be monitored using antibodies specific for the phospho-epitopes. In addition, Jun is phosphorylated by GSK3 on sites which inhibit Jun activity. Since GSK3 is inactivated by Akt, the Akt pathway results in Jun activation.
Applications:
Suitable for use in Western Blot, Immunoprecipitation, Immunohistochemistry and Immunocytochemistry. Other applications not tested.
Recommended Dilution:
Western Blot: 1:5000-1:10000
Immunohistochemistry: 1:50-1:100
Immunocytochemistry: 1:100-1:200
Immunoprecipitation: 1:50
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.