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SAB4200251

Sigma-Aldrich

Anti-Contactin-2 (C-terminal) antibody produced in rabbit

enhanced validation

~1.5 mg/mL, affinity isolated antibody

Synonym(s):

Anti-Axonin-1, Anti-CNTN2, Anti-TAG-564, Anti-TAG1, Anti-Tax

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous solution

mol wt

antigen ~135 kDa

species reactivity

human

enhanced validation

recombinant expression
Learn more about Antibody Enhanced Validation

concentration

~1.5 mg/mL

technique(s)

western blot: 1.5-3.0 using lysates of HEK-293T cells over expressing human contactin-2.

UniProt accession no.

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... CNTN2(6900)
rat ... Cntn2(25356)

General description

Contactin-2 (CNTN2),also known as TAG-1, axonin-1, Tax, astaxanthin (AXT), is an axonal glycoprotein, encoded by the gene mapped to human chromosome 1q32.1. The protein belongs to the neuronal cell adhesion molecules of the immunoglobulin superfamily (IgCAMs). Contactin-2/TAG-1 is predominantly expressed during early neural development. The protein contains six extracellular immunoglobulin-like domains and four fibronectin III-like domains.

Specificity

Anti-Contactin-2 (C-terminal) specifically recognizes human contactin-2.

Immunogen

synthetic peptide corresponding to a sequence located near the C-terminus of human contactin-2, conjugated to KLH. The corresponding sequence is highly conserved (89% sequence identity) in rat and mouse contactin-2.

Application

Anti-Contactin-2 (C-terminal) antibody produced in rabbit has been used in immunoblotting.

Biochem/physiol Actions

Contactin-2 (CNTN2) is involved in axonal formation and pathfinding. It also mediates axon-Schwann cell interactions and is localized in juxtaparanodal region. Mutation in the gene causes chronic inflammatory demyelinating polyneuropathy (CIDP) and Alzheimer′s disease (AD). Contactin-2 serves as a target for T cells and autoantibodies in multiple sclerosis (MS) patients. Contactin-2 has been suggested to be a functional ligand for amyloid precursor protein (APP). The interaction of CNTN2 with APP increases γ-secretase-mediated release of APP intracellular fragment (AICD), inducing a Fe65- dependent suppression of neurogenesis.

Physical form

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

Storage and Stability

For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing, or storage in “frost-free” freezers,is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.

Disclaimer

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.

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Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable


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Detection of contactin-2 in cerebrospinal fluid (CSF) of patients with Alzheimer's disease using Fluorescence Correlation Spectroscopy (FCS)
Chatterjee M, et al.
Clinical Biochemistry, 50(18), 1061-1066 (2017)
Contactin-2/TAG-1-directed autoimmunity is identified in multiple sclerosis patients and mediates gray matter pathology in animals
Derfuss T, et al.
Proceedings of the National Academy of Sciences, 106(20), 8302-8307 (2009)
The role of Gpi-anchored axonal glycoproteins in neural development and neurological disorders
Gennarini G, et al.
Molecular and Cellular Neurosciences, 81(18), 49-63 (2017)
Axonin-1/TAG-1 is required for pathfinding of granule cell axons in the developing cerebellum
Baeriswyl T and Stoeckli ET
Neural Dev., 3(1), 1-19 (2008)
Polymorphism of transient axonal glycoprotein-1 in chronic inflammatory demyelinating polyneuropathy
Iijima M, et al.
Journal of the Peripheral Nervous System : JPNS, 16(1), 52-55 (2011)

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