Technical Data
ASK1, CT, Blocking Peptide (Apoptosis Signal-regulating Kinase 1, ASK-1, Mitogen-activated Protein Kinase Kinase Kinase 5, MAP3K5, MAPKKK5, MAPK/ERK Kinase Kinase 5, MEK Kinase 5, MEKK 5, MEKK5)
Molecular Biology Storage: -20CShipping: Blue Ice
Peptide (linear) corresponding to amino acids 1356-1375 of human ASK1 (1). This sequence is different from that of mouse by last two amino acids (3). Mitogen-activated protein (MAP) kinase cascades are activated in response to various extracellular stimuli, including cytokines, growth factors and environmental stresses. A novel MAP kinase kinase kinase (MAPKKK) was recently identified and designated ASK1 (for apoptosis signal-regulating kinase 1) and MAPKKK5 (1-3). ASK1 activated two different subgroups of MAPKK, MKK4 and MKK6, which in turn activated c-Jun N-terminal kinase (JNK) and p38 MAP kinase, respectively. ASK1/MAPKKK5 is activated by TNFR and Fas through the interaction with members of the TRAF family and Fas-associated protein Daxx. Overexpression of ASK1 induced apoptotic cell death. A catalytically inactive form of ASK1 inhibited TNF-a-induced apoptosis. ASK1 is expressed in variety of human and mouse tissues.

Storage and Stability:
Lyophilized powder may be stored at 4C for short-term only. Stable for 12 months at -20C. Reconstitute to nominal volume (see reconstitution instructions for peptides) and store at -20C. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
Source: Human, synthetic peptide
Purity: 60%
Form: Supplied as a lyophilized powder.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
1. Ichijo, H., Nishida, E., Irie, K., ten Dijke, P., Saitoh, M., Moriguchi, T., Takagi, M., Matsumoto, K., Miyazono, K., Gotoh, Y., Induction of apoptosis by ASK1, a mammalian MAPKKK that activates SAPK/JNK and p38 signaling pathways. Science 275: 90-4 (1997). 2. Wang, X.S., Diener, K., Jannuzzi, D., Trollinger, D., Tan, T.H., Lichenstein, H., Zukowski, M., Yao, Z., Molecular cloning and characterization of a novel protein kinase with a catalytic domain homologous to mitogen-activated protein kinase kinase kinase. J. Biol. Chem. 271: 31607-11 (1996). 3. Tobiume, K., Inage, T., Takeda, K., Enomoto, S., Miyazono, K., Ichijo, H., Molecular cloning and characterization of the mouse apoptosis signal-regulating kinase 1. Biochem. Biophys. Res. Commun. 239: 905-10 (1997).

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.