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N1660 Sigma

Anti-Nicastrin antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution



Related Categories Alphabetical Index, Antibodies, Antibodies for Alzheimer′s Disease, Antibodies for Neurobiology, Antibodies for Neurodegenerative Diseases Research,
species reactivity   human, mouse, rat
application(s)   microarray: suitable
  western blot: 1:1,000 using minimum working antibody dilution using a whole cell extract of the HEK293 cell line stably transfected with human nicastrin.
clone   polyclonal
antibody form   IgG fraction of antiserum
form   buffered aqueous solution
mol wt   antigen mol wt 110 kDa
shipped in   dry ice
storage temp.   −20°C
Gene Information   human ... NCSTN(23385)
biological source   rabbit
conjugate   unconjugated



synthetic peptide corresponding to the C-terminus of human nicastrin (amino acids 693-709) conjugated to KLH. The corresponding sequence is identical in mouse.

General description

Nicastrin is a type I transmembrane glycoprotein (709 amino acids) that interacts with both presenilin-1 (PS1) and presenilin-2 (PS2). It has a key role in the regulation of presenilin-mediated cleavage of the b-amyloid precursor protein (b-APP) and Notch/GLP-1. Nicastrin binds to the membrane-tethered form of Notch and is essential for the intramembrane cleavage of Notch to generate Notch intracellular domain (NICD), which is involved in intracellular signaling. It has been suggested that nicastrin binds substrates of presenilin/g-secretase complexes or modulates g-secretase activity. Suppression of nicastrin expression in C. elegansembryos induces a subset of notch/glp-1 phenotypes similar to those induced by simultaneous null mutations in both presenilin homologues of C. elegans (sel-12 and hop-1). Thus, increasing evidence indicates that both nicastrin and presenilins are necessary components for the intramembrane proteolysis of proteins such as b-APP and Notch, and implicates a direct role for nicastrin in the pathogenesis of Alzheimer′s disease and in the regulation of Notch signaling in vivo.

Rabbit polyclonal anti-Nicastrin recognizes human nicastrin (110 kDa) by immunoblotting. Staining of nicastrin in immunoblotting is specifically inhibited with nicastrin immunizing peptide.

Physical form

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


Rabbit polyclonal anti-Nicastrin is used to tag Nicastrin for detection and quantitation by immunocytochemical and immunohistochemical (IHC) techniques such as immunoblotting, immunoprecipitation, and immunofluorescence. It is used as a probe to determine the presence and roles of nicastrin in the regulation of presenilin-mediated cleavage of the β-amyloid precursor protein (b-APP) and Notch/GLP-1 (intramembrane proteolysis).

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Safety Information

RIDADR  NONH for all modes of transport
WGK Germany  3
Protocols & Articles


Alzheimer's Disease

Alzheimer's disease (AD) is the most common cause of dementia in the elderly and is characterized by gradual loss of cognitive functions. Hallmark pathohistological findings of AD include widespread ...
Carolyn L. Crankshaw
BioFiles v7 n2, 2011, 4–8
Keywords: Alzheimer Disease, Gene expression, Genetic, Genetics, Inflammation, Metabolism, Phosphorylations

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