Component of a protein kinase signal transduction cascade. Phosphorylates and activates MAP2K4 and MAP2K6, which in turn activate the JNK and p38 MAP kinases, respectively. Overexpression induces apoptotic cell death.Mabuchi S, et al. (2004) Endocrinology. 145(1): 49-58.Yuan ZQ, et al. (2003) J Biol Chem. 278(26): 23432-23440.Kim AH, et al. (2001) Mol Cell Biol. 21(3): 893-901.
Host
Rabbit
Immunogen
Peptide sequence around aa.81~85 (G-S-S-V-G) derived from Human ASK1.
Raised In
Rabbit
Reactivity
Human
Regulatory
RUO
Relevance
Component of a protein kinase signal transduction cascade. Phosphorylates and activates MAP2K4 and MAP2K6, which in turn activate the JNK and p38 MAP kinases, respectively. Overexpression induces apoptotic cell death.
Mabuchi S, et al. (2004) Endocrinology. 145(1): 49-58. Yuan ZQ, et al. (2003) J Biol Chem. 278(26): 23432-23440. Kim AH, et al. (2001) Mol Cell Biol. 21(3): 893-901.
Species
Homo Sapiens (Human)
Specificity
The antibody detects endogenous level of total ASK1 protein.
Serine/threonine kinase which acts as an essential component of the MAP kinase signal transduction pathway. Plays an important role in the cascades of cellular responses evoked by changes in the environment. Mediates signaling for determination of cell fate such as differentiation and survival. Plays a crucial role in the apoptosis signal transduction pathway through mitochondria-dependent caspase activation. MAP3K5/ASK1 is required for the innate immune response, which is essential for host defense against a wide range of pathogens. Mediates signal transduction of various stressors like oxidative stress as well as by receptor-mediated inflammatory signals, such as the tumor necrosis factor (TNF) or lipopolysaccharide (LPS). Once activated, acts as an upstream activator of the MKK/JNK signal transduction cascade and the p38 MAPK signal transduction cascade through the phosphorylation and activation of several MAP kinase kinases like MAP2K4/SEK1, MAP2K3/MKK3, MAP2K6/MKK6 and MAP2K7/MKK7. These MAP2Ks in turn activate p38 MAPKs and c-jun N-terminal kinases (JNKs). Both p38 MAPK and JNKs control the transcription factors activator protein-1 (AP-1).
Pathway
MAPK signaling pathway TNF signaling pathway Apoptosis Protein processing in endoplasmic reticulum ER Stress pathway Neurotrophin signaling pathway
Protein Families
Protein kinase superfamily, STE Ser/Thr protein kinase family, MAP kinase kinase kinase subfamily
Tissue Specificity
Abundantly expressed in heart and pancreas.
Weight
69,839 Da
Buffer
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Format
liquid
Purification
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Purity
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.