ASK1 Antibody


Immunohistochemistry-Paraffin: ASK1 Antibody [NB100-56077] - Formalin-fixed paraffin-embedded tissue section of human small venous vessels stained for ASK1 expression using this antibody at 1:2000. ASK1 positive more
Immunohistochemistry-Paraffin: ASK1 Antibody [NB100-56077] - Formalin-fixed paraffin-embedded tissue section of human reactive tonsil stained for ASK1 expression using NB100-56077 at 1:2000. A and A1. Low and high more

Product Details

Reactivity HuSpecies Glossary
Applications WB, IHC, IP

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ASK1 Antibody Summary

A synthetic peptide corresponding to amino acids 1198 to 1216(CHEEQPSNQTVRRPQAVIED) of human Ask1 was used as immunogen; GenBank no. NP_005914.1. Human Ask1 is a 1374 amino acid protein. The peptide immunogen sequence is 100% conserved in Ask1 variant (BAD92330.1), a 1455 amino acid protein.
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  • Immunohistochemistry
  • Immunohistochemistry-Paraffin 1:1000-1:5000
  • Immunoprecipitation 1:50-1:200
  • Western Blot 1:1000-1:2000
ASK1 Overexpression Lysate

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
Whole antisera
0.02% Sodium Azide

Alternate Names for ASK1 Antibody

  • Apoptosis signal-regulating kinase 1
  • ASK1
  • ASK-1
  • ASK1MEKK 5
  • EC 2.7.11
  • MAP/ERK kinase kinase 5
  • MAP3K5
  • MAPK/ERK kinase kinase 5
  • MEK kinase 5
  • MEKK5
  • MEKK5apoptosis signal regulating kinase 1
  • mitogen-activated protein kinase kinase kinase 5


Ask1 (apoptosis signal-regulating kinase 1), a serine/threonine kinase, is a member of the MAPKKK family that constitutes the JNK and p38 (MAPK) cascades. Members of this family are activated by physiological and cytotoxic stresses and induce various stress responses including apoptosis (reviewed in Sekine et al. 2006). Specifically, Ask1-MAPK cascades have been shown to be involved in endoplasmic reticululum (ER) stress-induced apoptosis and in neuronal cell death. Studies suggest that ER stress-induced apoptosis plays critical roles in the pathogenesis in some neurodegenerative diseases including Alzheimer's, Parkinson's, polyglutamine (polyQ), amyotrophic lateral sclerosis (ALS) and Prion diseases. Studies using using cultured mammalian cells suggest that Ask1 may play a role as a proapoptotic signaling intermediate in the pathogenesis of these and other neurodegenerative diseases that involve ER stress-induced apoptosis. However, the regulation and function of Ask1 in neuronal cell death remains to be fully elucidated. In addition to playing a role in ER stress-induced apoptosis, Ask1 is also thought to be important in cytokine-induced apoptosis, and may also have functions other than apoptosis including roles in cell survival and differentiation. Structurally, human Ask1 has a serine/threonine kinase domain in the middle of the molecule. The kinase domain is evolutionarily conserved from nematode to human. A threonine residue with the activation loop of the kinases domain (Thr838 of human Ask1) is essential for Ask1 activation. There are two coiled-coil domains, one in the N-terminal and the other in the C-terminal domain. The coiled-coil domain in the C-terminal domain has been shown to be required for homo-oligomerzation.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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Control Lysate(s)

Secondary Antibodies


Isotype Controls

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Research Areas for ASK1 Antibody (NB100-56077)

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Blogs on ASK1.

Liver ASK1 activates autophagy to protect against hepatic fat accumulation, non-alcoholic steatohepatitis and fibrosis
By Jamshed Arslan, Pharm. D., PhD. The most common chronic liver disorder worldwide is non-alcoholic fatty liver disease (NAFLD). This obesity-linked disorder can manifest as hepatic fat accumulation (steatosis) wit...  Read full blog post.

IRE1 alpha dependent apoptotic-signaling pathway
Despite in depth characterization of the role of IRE1 alpha (inositol-requiring enzyme 1 alpha) in activating the unfolded protein response (UPR) in the ER - little is known about the molecular mechanisms by which this ER protein has shown to reg...  Read full blog post.

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Gene Symbol MAP3K5