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Specifications

Clone Host Grade Applications Polyclonal Goat Purified E

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 62 kDa. The light chain (21kDa) of PC consists of two EGF-like domains and an amino-terminal domain containing one hydroxyaspartic acid and 11g-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 (41kDa) 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 (2-3 kDa, 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 alpha A1antitrypsin and alpha 2macroglobulin. The inhibitory activity of PCI is stimulated approximately 10 fold by heparin.
Catalog #	P9102-35A
Application	Suitable for use in ELISA and rocket immunoelectrophoresis (RIEP) for the measurement of Protein C antigen in plasma samples. Other applications not tested.
Recommended Dilutions
	Optimal dilutions to be determined by the researcher.
Storage and Stability	May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
CAS Number	n/a
Clone Type	Polyclonal
Isotype	IgG
Host	Goat
Source	Human
Concentration	~5mg/ml
Form	Supplied as a liquid in 10mM HEPES, pH7.4, 0.15M sodium chloride, 50% glycerol.
Purity	Purified
Immunogen	Protein C (PC) purified from human plasma.
Specificity	Recognizes human Protein C as demonstrated by immunoelectrophoresis and ELISA.
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.