- Peptide (C)DVEFSFPKFSRLRR, corresponding to amino acid residues 155-170 of rat PRX (Accession Q63425). Intracellular, N-terminus.
- Western blot analysis of rat DRG lysate:1. Guinea pig Anti-Periaxin Antibody (#AGP-215), (1:200).
2. Guinea pig Anti-Periaxin Antibody, preincubated with Periaxin Blocking Peptide (#BLP-NR091).
- Western blot analysis of mouse lung lysate:3. Guinea pig Anti-Periaxin Antibody (#AGP-215), (1:600).
4. Guinea pig Anti-Periaxin Antibody, preincubated with Periaxin Blocking Peptide (#BLP-NR091).
- Expression of Periaxin in rat spinal dorsal root entry zoneImmunohistochemical staining of rat spinal dorsal root entry zone frozen sections using Guinea pig Anti-Periaxin Antibody (#AGP-215). Periaxin immunoreactivity (red) appears in the dorsal nerve root (arrows). Nuclei are stained using DAPI as the counterstain (blue).
Periaxin protein is a membrane-associated protein expressed in myelinating Schwann cells. It is required for the stable maintenance and development of a normal myelin sheath in the peripheral nervous system. It is also a member of cytoskeletal complexes in lens fibers where it plays an important role in maturation, packing, and membrane organization of lens fiber cell1,2.
The periaxin gene (PRX) encodes two protein isoforms, L-periaxin and S-periaxin generated by alternative mRNA splicing. These proteins contain N-terminal PDZ domains (PSD-95/Discs-large/ZO-1) important for organizing protein–protein interactions.
L-periaxin is a component of the dystroglycan–dystrophin-related protein-2 complex (DRP2) linking the Schwann cell cytoskeleton to the extracellular matrix. Its location changes during myelination; at first the protein is localized to the adaxonal plasma membrane and later, in the abaxonal plasma membrane. S-periaxin is distributed in a uniform manner in the cytoplasm and the nucleus of the Schwann cell1-3.
Mutations in the Periaxin gene are known to cause autosomal recessive demyelinating in Type 4F Charcot-Marie-Tooth (CMT4F) and Dejerine-Sottas disease3.
Periaxin knockout mice develop normally myelinated peripheral nervous system at first but develop a late onset demyelinating peripheral neuropathy1.
Species reactivity key:
Guinea pig Anti-Periaxin Antibody (#AGP-215), raised in guinea pig, is a highly specific antibody directed against an epitope of the rat protein. The antibody can be used in western blot and immunohistochemistry applications. It has been designed to recognize Periaxin from mouse, rat and human samples. The antigen used to immunize guinea pigs is the same as Anti-Periaxin Antibody (#ANR-091) raised in rabbit. Our line of guinea pig antibodies enables more flexibility with our products such as multiplex staining studies, immunoprecipitation, etc.