Recombinant Human NPRC/NPR3 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
Recombinant Human NPRC/NPR3 Fc Chimera Protein Binding Activity
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Product Details

Recombinant Human NPRC/NPR3 Fc Chimera Protein, CF Summary

Product Specifications

>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Measured by its binding ability in a functional ELISA. When Recombinant Human NPRC/NPR3 Fc Chimera is immobilized at 2 μg/mL (100 μL/well), the concentration of Recombinant Human Osteocrin (Catalog # 9669-ON) that produces 50% of the optimal binding response is 2-20 ng/mL
Human embryonic kidney cell, HEK293-derived human NPRC/NPR3 protein
Accession # P17342.2
Accession #
N-terminal Sequence
Thr24 & Glu46
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
77 kDa & 75 kDa
78-92 kDa

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 with Trehalose.
Reconstitution Reconstitute at 500 μg/mL in 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.

Data Images

Binding Activity Recombinant Human NPRC/NPR3 Fc Chimera Protein Binding Activity View Larger

When Recombinant Human NPRC/NPR3 Fc Chimera (Catalog # 10233-NR) is immobilized at 2 µg/mL, Recombinant Human Osteocrin (Catalog # 9669-ON) binds with an ED50 of 2-20 ng/mL.

SDS-PAGE Recombinant Human NPRC/NPR3 Fc Chimera Protein SDS-PAGE View Larger

2 μg/lane of Recombinant Human NPRC/NPR3 Fc Chimera was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 78-92 kDa and 160-200 kDa, respectively.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Background: NPRC/NPR3

Atrial Natriuretic Peptide Receptor-3 (NPR3), also known as NPRC or ANPR-C, is one of the three natriuretic peptide receptors (1, 2). Mature human NPR3 is a type I transmembrane glycoprotein that contains a 455 amino acid (aa) extracellular domain (ECD), a 23 aa transmembrane segment, and a 37 aa cytoplasmic region. Within the ECD, human NPR3 shares 92% aa sequence identity with mouse and rat NPR3. The natriuretic system is key to the maintenance of vascular tone and cardiovascular homeostasis. It consists of three related natriuretic peptides: atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and C-type natriuretic peptide (CNP). It also consists of three single-membrane-spanning receptors (NPRs) to mediate the biological activity of these peptides: NPR1, NPR2, and NPR3. NPR1 and NPR2 are guanylyl cyclase receptors that regulate cGMP levels, while NPR3 lacks enzymatic activity and may act as a clearance receptor (1, 2). Both ANP and BNP exhibit high binding affinities to NPR1 and NPR3, while CNP binds with high affinity to NPR2 and NPR3 (2). NPR3 is known to be expressed in the heart, lung, adrenal gland, heart, cerebral cortex, cerebellum, liver and adipocytes and in some cancers (1, 2). Osteocrin was found to be a specific ligand to NPR3 (3). NPR3 is necessary for Osteocrin to regulate femoral, tibial, and metatarsal bone elongation (4).

  1. Potter, L.R. et al. (2006) Endocr. Rev. 27:47.
  2. Koller, K. J. and D. V. Goeddel (1992) Circulation 86:1081.
  3. Thomas, G. et al. (2003) J. Biol. Chem. 278:50563.
  4. Moffatt, P. et al. (2007) J. Biol. Chem. 282:36454.
Long Name
Natriuretic Peptide Receptor C
Entrez Gene IDs
4883 (Human); 18162 (Mouse); 25339 (Rat)
Alternate Names
ANP-C; ANPR-C; ANPRCFLJ14054; Atrial natriuretic peptide clearance receptor; atrial natriuretic peptide receptor 3; Atrial natriuretic peptide receptor type C; C5orf23; chromosome 5 open reading frame 23; GUCY2B; lgj; natriuretic peptide receptor C/guanylate cyclase C (atrionatriuretic peptidereceptor C); NPR3; NPRC; NPR-C; stri


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