Recombinant Mouse Neprilysin Protein, CF

Name: Recombinant Mouse Neprilysin Protein, CF
Brand: R&D Systems
SKU: 1126-ZN

Catalog #: 1126-ZN
1 Citation Datasheet / COA / SDS

Newer Version Available: 1126-ZNC

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Discontinued Product

1126-ZN has been discontinued and is replaced by 1126-ZNC.

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Citations (1)

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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse Neprilysin Protein, CF Summary

Product Specifications

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

Activity

Measured by its ability to cleave the fluorogenic peptide substrate, Mca-RPPGFSAFK(Dnp)-OH (Catalog # ES005). The specific activity is >2,000 pmol/min/µg, as measured under the described conditions.

Source

Spodoptera frugiperda, Sf 21 (stably transfected)-derived mouse Neprilysin/CD10 protein
Tyr52-Trp750

Accession #

AAA37386

N-terminal Sequence
Analysis

Tyr52

Predicted Molecular Mass

80 kDa

SDS-PAGE

81 kDa, reducing conditions

Product Datasheets

1126-ZN

Product Datasheet

COA

SDS

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.

1126-ZN

Formulation	Supplied as a 0.2 μm filtered solution in Tris and NaCl.
Shipping	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.

Assay Procedure

Materials

Assay Buffer: 0.1 M MES, pH 6.5
Recombinant Mouse Neprilysin/CD10 (rmNeprilysin) (Catalog # 1126-ZN)
Substrate: MCA-Arg-Pro-Pro-Gly-Phe-Ser-Ala-Phe-Lys(DNP)-OH (Catalog # ES005)
F16 Black Maxisorp Plate (Nunc, Catalog # 475515)
Fluorescent Plate Reader (Model: SpectraMax Gemini EM by Molecular Devices) or equivalent

Dilute rmNeprilysin to 0.2 µg/mL in Assay Buffer.
Dilute Substrate to 20 µM in Assay Buffer.
Load 50 µL of 0.2 µg/mL of rmNeprilysin in a plate, and start the reaction by adding 50 µL of 20 µM Substrate. As a Substrate Blank, load 50 µL of Assay Buffer and 50 µL of Substrate.
Read at excitation and emission wavelengths of 320 nm and 405 nm (top read), respectively, in kinetic mode for 5 minutes.
Calculate specific activity:

Specific Activity (pmol/min/µg) =	Adjusted V_max* (RFU/min) x Conversion Factor** (pmol/RFU)
	amount of enzyme (µg)

*Adjusted for Substrate Blank

**Derived using calibration standard MCA-Pro-Leu-OH (Bachem, Catalog # M-1975).

Per Well:

rmNeprilysin: 0.010 µg
Substrate: 10 µM

Reconstitution Calculator

Background: Neprilysin/CD10

Neprilysin (NEP, neutral endopeptidase 24.11, EC 3.4.24.11) is a zinc metallopeptidase expressed at the cell surface of a variety of cells. The enzyme functions both as an endopeptidase with a thermolysin-like specificity and as a dipeptidylcarboxypeptidase. NEP has been shown to be involved in the degradation of enkephalins in the mammalian brain and the inactivation of circulating atrial natriuretic peptide (1, 2). NEP has also been identified as the common acute lymphoblastic leukemia antigen (CALLA), and to be expressed on the surface of lymphocytes in some disease states (3). These and other observations have resulted in considerable clinical interest in NEP as a potential target for analgesics and antihypertensive drugs. NEP is also a major degrading enzyme of amyloid beta peptide (A beta ) in the brain, indicating that down-regulation of NEP activity, which could be caused by aging, can contribute to the development of Alzheimer’s disease by promoting A beta accumulation (4).

References

Malfroy, B. et al. (1978) Nature 276:523.
Kenny, A.J. and S.L. Stephenson (1988) FEBS Lett. 232:1.
LeTarte, M. et al. (1988) J. Exp. Med. 168:1247.
Itwata, N. et al. (2001) Science 292:1550.

Entrez Gene IDs

4311 (Human); 17380 (Mouse); 24590 (Rat); 101925772 (Cynomolgus Monkey)

Alternate Names

Atriopeptidase; CALLA; CALLAmembrane metallo-endopeptidase (neutral endopeptidase, enkephalinase); CD10 antigen; CD10; CD10); CD10membrane metallo-endopeptidase variant 1; Common acute lymphocytic leukemia antigen; DKFZp686O16152; EC 3.4.24; EC 3.4.24.11; Enkephalinase; EPN; Leu-19; membrane metallo-endopeptidase variant 2; membrane metallo-endopeptidase; MGC126681; MGC126707; MME; NEPmembrane metallo-endopeptidase (neutral endopeptidase, enkephalinase, CALLA; Neprilysin; Neutral Endopeptidase 24.11; Neutral endopeptidase; NKH1; SFE; Skin fibroblast elastase

Related Research Areas

Citation for Recombinant Mouse Neprilysin Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

Successive action of meprin A and neprilysin catabolizes B-type natriuretic peptide.
Authors: Pankow K, Wang Y, Gembardt F, Krause E, Sun X, Krause G, Schultheiss HP, Siems WE, Walther T
Circ. Res., 2007-09-06;101(9):875-82.
Applications: Bioassay