Anti-CNTNAP1 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-Contactin-associated protein 1 precursor antibody produced in rabbit, Anti-Neurexin 4 antibody produced in rabbit, Anti-Caspr1 antibody produced in rabbit, Anti-Caspr antibody produced in rabbit, Anti-p190 antibody produced in rabbit
Human Protein Atlas Number:
Pricing and availability is not currently available.

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL


immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:20-1:50

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... CNTNAP1(8506)

Related Categories


Contactin-associated protein 1 precursor recombinant protein epitope signature tag (PrEST)


Anti-CNTNAP1 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.

Biochem/physiol Actions

CNTNAP1 (Contactin associated protein 1) is an axonal transmembrane molecule encoding a protein CASPR. It is expressed at the paranodal junction region. In conjugation with contactin, it forms a cis complex at the axoglial adhesion region to stabilize the paranodal septate-like junction. It functions as an essential component of node of Ranvier domains in several neuronal activities including myelination of Schwann cells. Missesnse mutation in CNTNAP1 is responsible for critical axoglial diseases in humans.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST71788.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


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.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Annie Laquérriere et al.
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Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 40(3), 639-655 (2019-03-06)
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Nicole Pukos et al.
PloS one, 15(7), e0235232-e0235232 (2020-08-01)
The tamoxifen-dependent Cre/lox system in transgenic mice has become an important research tool across all scientific disciplines for manipulating gene expression in specific cell types. In these mouse models, Cre-recombination is not induced until tamoxifen is administered, which allows researchers...
Shi-Yu Tang et al.
Frontiers in molecular neuroscience, 13, 23-23 (2020-03-27)
The expression of contactin-associated protein 1 (Caspr1) in brain microvascular endothelial cells (BMECs), one of the major cellular components of the neurovascular unit (NVU), has been revealed recently. However, the physiological role of Caspr1 in BMECs remains unclear. We previously...

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