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  • I0505 - Anti-IκBα antibody produced in rabbit

I0505 Sigma-Aldrich

Anti-IκBα antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution



Related Categories Alphabetical Index, Antibodies, Antibodies against Proteins, Bioactives, Markers and Receptors, Antibodies against Proteins, Bioactives, Markers, and Receptors for Stem Cell Biology, Antibodies against Proteins/Bioactives/Markers/Receptors for Stem Cell Biology,
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   microarray: suitable
  western blot: 1:2,000 using a whole extract of human epidermal carcinoma A431 cells
  western blot: 1:2,000 using a whole extract of human epitheloid carcinoma HeLa cells
species reactivity   mouse, rat, human
mol wt   antigen mol wt 36 kDa
form   buffered aqueous solution
shipped in   dry ice
storage temp.   −20°C
antibody form   IgG fraction of antiserum
antibody product type   primary antibodies
UniProt accession no.   P25963
Gene Information   human ... NFKBIA(4792)
mouse ... Nfkbia(18035)
rat ... Nfkbia(25493)



synthetic peptide corresponding to the C-terminus of human IκBα (amino acids 297-317 with N-terminally added lysine) conjugated to KLH.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


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

The gene NFKBIA (nuclear factor of κ light polypeptide gene enhancer B-cells inhibitor-α) encodes the α member of the NF-κ-B inhibitor family IκB, which also consists of IκBβ and IκBε. NFKBIA is also referred to as IκBα. It is the strongest inhibitor of nuclear NF-κB activity among these members. Specific phosphorylation of the inhibitor IκBα at Ser32 and Ser36, its ubiubiquitination and subsequent proteolytic degradation is necessary for the activation of NF-κ-B. It is localized to the cytosol, where it retains NF-κB. Polymorphism in this gene is linked to recurrent acute rejections in liver transplant recipients. Mutations in this gene have been linked to autosomal dominant anhidrotic ectodermal dysplasia and T cell immunodeficiency. The gene NFKBIA is mapped to human chromosome 14q13.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 

Milli-Q® Water Purification Solutions
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
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Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
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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