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  • SAB4504337 - Anti-phospho-ASK1 (pSer966) antibody produced in rabbit

SAB4504337 Sigma-Aldrich

Anti-phospho-ASK1 (pSer966) antibody produced in rabbit

affinity isolated antibody



Related Categories Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Kinase/Phosphatase Biology, Antibodies to Phosphoproteins at Phosphoserine (pSer),
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   ELISA: 1:20000
  immunohistochemistry: 1:50-1:100
  western blot: 1:500-1:1000
species reactivity   rat, human, mouse
mol wt   antigen mol wt 154 kDa
form   buffered aqueous solution
shipped in   wet ice
storage temp.   −20°C
antibody form   affinity isolated antibody
antibody product type   primary antibodies
concentration   ~1 mg/mL
NCBI accession no.   Q99683
UniProt accession no.   Q99683
Gene Information   human ... MAP3K5(4217)


General description

Apoptosis signal-regulating kinase 1 (ASK1) is a serine/threonine protein kinase. It belongs to the MAPKKK (mitogen-activated protein kinase) family. This gene is located on human chromosome 6q23.

Mitogen-activated protein kinase kinase kinase 5 (MAP3K5), also known as apoptosis signal-regulating kinase 1 (ASK1), is encoded by the gene mapped to human chromosome 6q22.33. The encoded protein belongs to the mitogen-activated protein kinase family. Porcine MAP3K5, which shares 97 % sequence identity with human MAP3K5, is characterized with a domain of unknown function (DUF4071) and a protein kinase domain.


The antiserum was produced against synthesized peptide derived from human ASK1 around the phosphorylation site of Ser966.

Immunogen Range: 932-981


Anti-phospho-ASK1 (pSer966) antibody has been used in western blotting.

Anti-phospho-ASK1 (pSer966) antibody produced in rabbit has been used in immunoblot analysis.

Physical form

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Biochem/physiol Actions

Apoptosis signal-regulating kinase 1 (ASK1) is linked with apoptosis in cancer and heart tissues. It act as an upstream regulator of p38 and JNK (c-Jun N-terminal kinase) in cardiomyocytes death. Mutations in MAP3K5 gene result in β-thalassemia disease severity and hydroxyurea treatment efficacy.

Mitogen-activated protein kinase kinase kinase 5 (MAP3K5), is one of the vital genes involved in the mitogen-activated protein kinase (MAPK) signaling cascade, which plays a crucial role in the cytoplasmic transduction of extracellular signals. Apoptosis signal-regulating kinase 1 (ASK1)-dependent mitochondrial apoptosis pathway, activated by 4SC-202, which is a novel class I HDAC inhibitor (HDACi), potentially stops hepatocellular carcinoma (HCC) cell proliferation. The encoded protein in response to oxidative stress, endoplasmic reticulum stress, infection and calcium influx plays a vital role in intracellular signaling pathways and biological functions including cell death, differentiation and inflammation. Genomic variation in MAP3K5 indicates β-thalassemia disease severity and hydroxyurea (HU) treatment efficiency. ASK1 plays a vital role in inhibition of the adipocytic differentiation process of the tumor cells and functions as an efficient therapeutic target for several human diseases including malignant fibrous histiocytomas.

Features and Benefits

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Antibody Basics

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Western Blot Protocol | Immunoblotting Protocol

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Keywords: AGE, Buffers, Cell disruption, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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