Technical Data
P9102-33D
Protein C
Description:
Protein C (PC) is a vitamin K-dependent glycoprotein produced in the liver. The concentration of PC in plasma is ~4ug/ml (~60nM). A deficiency of Protein C (quantitative or qualitative) is a risk factor for vascular thrombosis. Protein C is expressed as a two-chain molecule with a molecular weight of 62kD. The light chain (21kD) of PC consists of two EGF-like domains and an amino-terminal domain containing one hydroxyaspartic acid and 11 g-carboxyglutamic acid (gla) residues. These residues allow PC to bind to membranes that contain acidic phospholipids in a calcium dependent manner. The heavy chain of PC (41kD) consists of the catalytic domain and an activation peptide. Activation of Protein C results from cleavage at residue Arg12 in the heavy chain by a complex of thrombin and a cell surface cofactor thrombomodulin. The activation of PC is associated with the release of a small activation peptide (2-3kD, called Protein C peptide, or PCP) from the N-terminal of the heavy chain. Activated Protein C (APC) is a serine protease with anticoagulant activity. APC, in complex with a phospholipid membrane, calcium and the Protein S cofactor, exhibits anticoagulant activity through the proteolytic inactivation of coagulation cofactors Va and VIIIa. The primary inhibitor of APC activity in plasma is Protein C Inhibitor (PCI, also called Plasminogen Activator Inhibitor-3, PAI-3) and to a lesser extent by alpha1-antitrypsin and alpha2-macroglobulin. The inhibitory activity of PCI is stimulated approximately 10 fold by heparin.

Applications:
Suitable for use in ELISA and Western Blot. Other applications not tested.

Recommended Dilution:
ELISA: 1:50,000
Western Blot: 1-5ug/ml
Optimal dilutions to be determined by the researcher.

Storage and Stability:
May be stored at 4C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20C. Aliquots are stable for at least 12 months at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
TypeIsotypeCloneGrade
PabAffinity Purified
SizeStorageShippingSourceHost
200ug-20CBlue IceMouseSheep
Concentration:
~1mg/ml
Immunogen:
Mouse Protein C.
Purity:
Purified by Protein G affinity chromatography.
Form
Supplied as a liquid in 0.05M sodium phosphate, 0.1M sodium chloride, 1mM EDTA, pH 6.6. No preservative added.
Specificity:
Recognizes mouse Protein C and mouse APC.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.