CREB (cAMP Response Element Binding Protein) (APC)

Transcription factor CREB binds the cyclic AMP response element (CRE) and activates transcription in response to a variety of extracellular signals including neurotransmitters, hormones, membrane depolarization, and growth or neurotrophic factors. Protein kinase A and the calmodulin-dependent protein kinase CaMKII stimulate CREB phosphorylation at Ser133, a key regulatory site controlling transcriptional activity (1,2). Phosphorylation at Ser133 is also mediated by p44/42 MAP kinase, p90RSK, p38 MAP kinase and MSK1 (3–5). CREB appears to play an important role in learning and memory in both flies and mice.

Applications:
Suitable for use in FLISA and Western Blot. Other applications not tested.

Recommended Dilutions:
FLISA: 0.1-1ug/ml
Western Blot: 1-5ug/ml
Optimal dilutions to be determined by the researcher.

Positive Controls:
Human H9 and Jurkat lymphoblasts, HeLa cells, Hep G2 hepatoma cells and WI-38 fibroblasts, rat 208F, mouse BALB/c 3T3 fibroblasts and F9 embryonal cell carcinoma stem cells.

Storage and Stability:
Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: APC conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

Note: Applications are based on unconjugated antibody.