Recombinant Mouse Coagulation Factor XIV/Protein C, CF

Catalog # Availability Size / Price Qty
4885-SE-010
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Recombinant Mouse Coagulation Factor XIV/Protein C, CF Summary

Purity
>90%, 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, Boc-beta -benzyl-DPR-AMC. The specific activity is >125 pmol/min/µg, as measured under the described conditions.
Source
Chinese Hamster Ovary cell line, CHO-derived mouse Coagulation Factor XIV/Protein C protein
Ile19-Leu460 (pro) & Ala42-Leu460 (mature), both with a C-terminal 10-His tag
Accession #
N-terminal Sequence
Analysis
Ile19 & Ala42
Structure / Form
Pro and Mature forms
Predicted Molecular Mass
49 kDa (Pro) & 48 kDa (Mature)
SDS-PAGE
70 kDa, reducing conditions

Product Datasheets

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.

4885-SE

Formulation Supplied as a 0.2 μm filtered solution in Sodium Acetate 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
  • Activation Buffer: 50 mM Tris, 10 mM CaCl2, 150 mM NaCl, 0.05% (w/v) Brij-35, pH 7.5 (TCNB)
  • Assay Buffer: 50 mM Tris, 10 mM CaCl2, 150 mM NaCl, 0.01% (w/v) Brij-35, pH 8.5
  • Recombinant Mouse Coagulation Factor XIV/Protein C (rmPROC) (Catalog # 4885-SE)
  • Bacterial Thermolysin (Thermolysin) (Catalog # 3097-ZN)
  • 1,10 phenanthroline (Sigma, Catalog # 320056), 0.6 M stock in DMSO
  • Substrate: BOC-beta -benzyl-Asp-Pro-Arg-AMC (Bachem, Catalog # I-1560), 10 mM in DMSO
  • F16 Black Maxisorp Plate (Nunc, Catalog # 475515)
  • Fluorescent Plate Reader (Model: SpectraMax Gemini EM by Molecular Devices) or equivalent
  1. Dilute rmPROC to 200 µg/mL in Activation Buffer.
  2. Dilute Thermolysin to 10 µg/mL in Activation Buffer.
  3. Combine 25 µL of the diluted rmPROC and 25 µL of the diluted Thermolysin.
  4. Incubate at 37 °C for 2 hours.
  5. Dilute 1,10 phenanthroline to 5 mM in Assay Buffer.
  6. Add 200 µL of 5 mM 1,10 phenanthroline to the reaction mixtures to stop the Thermolysin activation.
  7. Dilute rmPROC to 2 µg/mL in Assay Buffer.
  8. Dilute Substrate to 200 µM in Assay Buffer.
  9. Load 50 µL of 2 µg/mL rmPROC into a plate, and start the reaction by adding 50 µL of 200 µM Substrate.
  10. Include a Substrate Blank containing 50 µL Assay Buffer and 50 µL of 200 µM Substrate.
  11. Read at excitation and emission wavelengths of 380 nm and 460 nm (top read), respectively, in kinetic mode for 5 minutes.
  12. Calculate specific activity:

     Specific Activity (pmol/min/µg) =

Adjusted Vmax* (RFU/min) x Conversion Factor** (pmol/RFU)
amount of enzyme (µg)

     *Adjusted for Substrate Blank
     **Derived using calibration standard 7-Amino, 4-Methyl Coumarin (AMC) (Sigma, Catalog # A-9891).

Per Well:
  • rmPROC: 0.100 µg
  • Substrate: 100 µM
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.

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Background: Coagulation Factor XIV/Protein C

Protein C is a vitamin K-dependent serine protease synthesized in the liver as a single-chain precursor, which is then proteolytically processed to two disulfide-linked chains (1). The light chain consists of a Gla (gamma-carboxy-glutamate) domain and two EGF-like domains. The heavy chain consists of an activation peptide (aa 199‑212) and serine protease domain (aa 213‑449). Physiologically, Protein C is converted to the active form by thrombin, which releases the activation peptide. Protein C plays a key role in anticoagulation, cleaving factors VIIIa and Va to inactivate them. This anticoagulation activity can be enhanced by a presence of a cofactor such as protein S. In hereditary thrombophilia, Protein C deficiency is caused by a genetic mutation that affects Protein C activity. A severe recessive form may result in massive thrombosis fatal to patient.

References
  1. Shen, L. and Dahlbäck, B. (2004) in Handbook of Proteolytic Enzymes, Barrett, A.J. et al. eds. pp. 1673.
Long Name
Vitamin K-dependent Protein C
Entrez Gene IDs
5624 (Human); 19123 (Mouse); 25268 (Rat)
Alternate Names
Anticoagulant protein C; APC; Autoprothrombin IIA; Blood coagulation factor XIV; Coagulation Factor XIV; EC 3.4.21; EC 3.4.21.69; PC; PROC; PROC1; protein C (inactivator of coagulation factors Va and VIIIa); Protein C; vitamin K-dependent protein C

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