Anti-Internexin α Antibody, CT, clone 2E3

The protein alpha-internexin is a ~66 kDa Class IV intermediate filament originally discovered as it copurifies with other neurofilament subunits {Pachter J et al J. Cell Biol 101:1316-22 (1985). It is related to but distinct from the better known neurofilament triplet proteins, NF-L, NF-M and NF-H, having similar protein sequence motifs and a similar intron organization. It is expressed in large amounts early in neuronal development, but is downregulated in many neurons as development procedes. Many classes of mature neurons contain alpha-internexin in addition to NF-L, NF-M anbd NF-H. In some mature neurons alpha-internexin is the only neurofilament subunit expressed. Antibodies to a-internexin are therefore unique probes to study and classify neuronal types and follow their processes in sections and in tissue culture. In addition the very early developmental expression of alpha-internexin means its presence is an early and convenient diagnostic feature of neuronal progenitors cells and other cell committed to the neuronal lineage. In addition recent studies show a marked up-regulation of a-internexin during neuronal regeneration {McGraw et al 2002}. The use of antibodies to this protein in the study of brain tumors has not been examined to date, but is likely to be of interest.

Alpha internexin. Localized to the C-terminal 164 amino acids of rat alpha internexin.

Epitope: C-terminus

Full length recombinant rat alpha internexin.

Research Category
Neuroscience

Research Sub Category
Neurofilament & Neuron Metabolism

Neuronal & Glial Markers

This Anti-Internexin Antibody, α, C-terminus, clone 2E3 is validated for use in ELISA, IP, WB, IH(P) for the detection of Internexin.

Western blot: antibody detects a protein band at 55-66kDa, as expected for alpha internexin {Evans, et al, 2001}.

Immunocytochemistry on PC12 and Ntera-2 cells.

Immunohistochemistry on formalin and methanol fixed tissues. Works on paraffin embedded tissue sections.

Immunoprecipitation

ELISA

Optimal working dilutions must be determined by the end user.

Replaces: 04-1032

Mouse IgG in low serum (1%), tissue culture supernatant containing no preservative.

Maintain at -20°C in undiluted aliquots for up to 6 months. Avoid repeated freeze/thaw cycles.

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