Detection of Rat Neurexin 1 beta /NXRN1b by Western Blot. Western blot shows lysates of rat spinal cord tissue. PVDF membrane was probed with 1 µg/mL of Sheep Anti-Rat Neurexin 1 beta /NXRN1b Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4524) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Neurexin 1 beta /NXRN1b at approximately 80 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Neurexin 1 beta/NXRN1b
Neurexin 1 beta is an 80 kDa member of the Neurexin family of proteins. It is expressed on neuronal presynaptic membranes and contributes to synapse formation through binding to postsynaptic neuroligins. An alternate start site in the Neurexin 1 gene generate an alpha - (long) and beta - (short) isoform. Mature rat Neurexin 1 beta is a type I transmembrane glycoprotein that is 468 amino acids (aa) in length. It has a 346 aa extracellular region (aa 47‑392) that contains one laminin-like G domain (aa 91‑264). Within the G domain, the presence or absence of a splice site (aa 201‑230) materially impacts neuroligin binding. Over aa 47‑392, rat Neurexin 1 beta is 100% and 98% aa identical to mouse and human Neurexin 1 beta, respectively.
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