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a-internexin/NF66 Antibody – RPCA-a-Int

  • Clonality : Rabbit Polyclonal
  • Applications : WB | IF/ICC | IHC
  • Reactivity : Human | Horse | Cow | Pig | Chicken | Rat | Mouse

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Encor Rabbit Polyclonal to Alpha Internexin, INA, NF66 

α-internexin is a Class IV intermediate filament originally discovered as it copurifies with other neurofilament subunits (1). α-internexin 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 only in neurons and in large amounts early in neuronal development, but is down-regulated in many neurons as development proceeds. On SDS-PAGE gels it runs with an apparent molecular weight of 64 to 66 kDa, with some species variability, although the real molecular weight is about 55 kDa. As with other neurofilament subunits the presence of highly negatively charged sequences results in reduction of SDS-PAGE mobility.
Many classes of mature neurons contain α-internexin in addition to NF-L, NF-M and NF-H. In some mature neurons α-internexin is the only neurofilament subunit expressed. Antibodies to α-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 α-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 α-internexin during neuronal regeneration (2). 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. Antibody to this protein show that α-internexin is an abundant component of the inclusions of neurofilament inclusion body disease (NFID), a serious human neurodegenerative disorder (3).

The antibody was raised against recombinant α-internexin expressed in and purified from E. coli, and is similar to but not identical with antibodies described in reference 4 below. The HGNC name for this protein is INA.


HGNC name(s) : INA


Host : Rabbit


Clonality : Polyclonal


ID : EnCor Biotechnology a-internexin/NF66 a-Int


Reactivity : Human | Horse | Cow | Pig | Chicken | Rat | Mouse


Isotype : IgG


Conjugation : none


Immunogen : Recombinant full length rat


Mass of detected protein : 66 kDa


Uniprot ID : Q16352


KGNC name : INA


RRID # :


Purification : Serum


Storage : Shipped on ice. Store at 4°C. For long term storage, leave frozen at -20°C. Avoid freeze / thaw cycles.


Validated applications : WB | IF/ICC | IHC


Suggested Dilutions: 

WB: 1:10 000-1:20 000. ICC/IF and IHC: 1:500-1:1 000.


Datasheet


Link to on EnCor’s website 


References :

1. Pachter, J and Liem, RKH. Alpha-Internexin, a 66-kD intermediate filament-binding protein from mammalian central nervous tissues. J Cell Biol 101:1316-22 (1985)

2. McGraw et al. Axonally transported peripheral signals regulate alpha-internexin expression in regenerating motoneurons. J Neurosci 22:4955-63 (2002)

3. Cairns NJ et al. alpha-internexin is present in the pathological inclusions of neuronal intermediate filament inclusion disease. Am J Pathol. 164:2153-61 (2004).

4. Evans J. et al. Characterization of mitotic neurons derived from adult rat hypothalamus and brain stem. J. Neurophysiol. 87:1076-85 (2002).


Additional information

Format

50 ul, 100 ul, 500 ul

Supplier

Host

Rabbit

Clonality

Polyclonal

Conjugation

None

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