Recombinant Mouse SEZ6L Protein, CF

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Recombinant Mouse SEZ6L Protein, CF Summary

Product Specifications

>95%, by SDS-PAGE with silver staining
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Measured by its ability to induce cell clumping and inhibit neurite outgrowth of Neuro‑2A mouse neuroblastoma cells. 2 μg/mL of Recombinant Mouse SEZ6L is able to signifcantly induce cell clumping and inhibit neurite outgrowth.
Mouse myeloma cell line, NS0-derived mouse SEZ6L protein
Glu32-Ser889, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Predicted Molecular Mass
94 kDa
115-185 kDa, reducing conditions

Product Datasheets

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Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.


Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 250 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
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Background: SEZ6L

Seizure 6-like Protein (SEZ6L), also known as Brain-specific Receptor-like Protein B (BSRP-B), is a member of the SEZ6 family of proteins with a molecular weight of approximately 200 kDa (1). Mouse SEZ6L is a type I transmembrane glycoprotein composed of an extracellular domain (ECD) that contains three CUB domains and five short consensus repeats (SCRs) (1). Alternative splicing generates an isoform that contains a phenylalanine substitution for amino acids (aa) 807-872 of the fifth SCR domain (1). Mouse SEZ6L shares 80% and 97% aa sequence identity with the human and rat orthologs, respectively. It is expressed in the plasma membrane and endoplasmic reticulum of neurons and lung bronchiolar epithelium and likely regulates PKC alpha activation (1, 2). In mouse pancreatic beta cells, SEZ6L has been shown to be a substrate for BACE-2, which cleaves its ECD at a site 16 aa upstream from its transmembrane domain (3). Additionally, human SEZ6L has been shown to be involved in the maintenance of cellular cholesterol homeostasis (4). BSRP-C also known as SEZ6, has been reported to inhibit neurite outgrowth in mice (5). R&D Systems in-house testing shows that mouse SEZ6L, also exhibits this function. Genetic variations in human Sez6l have been associated with bipolar disorder I and an increased risk for lung cancer (2, 6, 7).

  1. Miyazaki, T. et al. (2006) FEBS Lett. 580:4057.
  2. Nishioka, M. et al. (2000) Oncogene 19:6251.
  3. Stützer, I. et al. (2013) J. Biol. Chem. 288:10536.
  4. Blattmann, P. et al. (2013) PLoS Genetics 9:e1003338.
  5. Gunnersen, J.M. et al. (2007) Neuron 56:621.
  6. Gorlov, I.P. et al. (2007) Cancer Res. 67:8406.
  7. Xu, C. et al. (2013) J. Affect. Disord. 145:95.
Long Name
Seizure-related 6 Homolog-like
Entrez Gene IDs
23544 (Human); 56747 (Mouse); 304554 (Rat)
Alternate Names
Acig1; AIG1; Aig1L; BSRP-B; seizure related 6 homolog (mouse)-like; seizure related gene 6-like; SEZ6L


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