Product Specifications for Recombinant Human Neprilysin-2/MMEL1 Protein, CF
Mouse myeloma cell line, NS0-derived human Neprilysin-2/MMEL1 protein Gly69-Trp770, with an N-terminal 6-His tag
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
<1.0 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis
Predicted Molecular Mass
99 kDa, reducing conditions
Measured by its ability to cleave the fluorogenic peptide substrate, Mca-RPPGFSAFK(Dnp)-OH (Catalog # ES005). The specific activity is >250 pmol/min/µg, as measured under the described conditions.
Formulation, Preparation and Storage
What does CF mean?
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our
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
Supplied as a 0.2 μm filtered solution in Tris, NaCl and ZnCl2.
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
6 months from date of receipt, -20 to -70 °C as supplied.
3 months, -20 to -70 °C under sterile conditions after opening.
Neprilysin-2 is a zinc protease of the neprilysin (NEP) family, which also includes NEP, ECE-2, PEX, DINE, Kell and several NEP-like proteins (1). It is encoded by the MMEL1 gene in the human genome and is also known as soluble secreted endopeptidase (SEP), Neprilysin-like 1 and Neprilysin-2 (2). Highly expressed in testis, the cDNA predicted a type II transmembrane protein with a short cytoplasmic tail and a large ectodomain. Both membrane-bound and soluble forms were comparable with regard to model substrates, pH optima and inhibitor profiles. The ectodomain of human Neprilysin-2/MMEL1 was expressed with an N-terminal His tag and purified.
Turner, A.J. et al. (2001) BioEssays 23:261.
Carpentier, M. et al. (2004) in Handbook of Proteolytic Enzymes. Barrett, A.J. et al. eds. p. 426.
Which Brands are Currently Available on bio‑techne.com? R&D Systems, Tocris Bioscience and ProteinSimple branded products are available to purchase through bio‑techne.com. ProteinSimple branded instruments are available to quote. ACD branded products will be available on bio‑techne.com in the near future. Novus Biologicals branded products are not currently available on bio‑techne.com and can be found at novusbio.com.
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