产品详情 |
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Antigenic Specificity | Protein S / PROS1 |
Clone | polyclonal |
Host Species | Goat |
Reactive Species | human |
Isotype | n/a |
Format | serum |
Size | 1 mL |
Concentration | n/a |
Applications | Immunodiffusion (ID),Immunoprecipitation (IP) |
Reviews / Ratings | If you have used this antibody, please help fellow researchers by submitting reviews to pAbmAbs and antYbuddY. |
Description | Protein S is a vitamin K dependent plasma glycoprotein (MW 69,000) which belongs to a group of coagulation inhibitors consisting itself of proteinases. It circulates in the blood in a free active form and in an inactive form bound to C4b binding protein. Protein S is also released by thrombin stimulation from platelet alpha-granules. Protein S acts a s a cofactor for activated protein C (pCa) enhancing the cleavage of factors Va and VIIIa, producing anticoagulation by decreasing the conversion of prothrombin to thrombin. It also stimulates the fibrinolytic system. Protein S looses much of its coagulant cofactor activity after cleavage by thrombin, a process which is inhibited by thrombomodulin in the presence of free calcium ions. Plasma concentration of protein S may be significantly reduced below normal adult levels (2.5mg/mL) in patients with hereditary deficiency of protein S or suffering a combination of deep vein thrombosis, superficial thrombophlebitis and pulmonary embolism. Substances such as bacterial endotoxins, tumour necrosis factor and immune mediator interleukin 1 also reduce the protein S level in plasma. Oral contraceptives also depress pS activity. A reduction in plasma protein S during pregnancy usually returns to normal after parturition. |
Immunogen | Freund's complete adjuvant is used in the first step of the immunization procedure. |
Other Names | PROS, Vitamin K-dependent protein S |
Gene, Accession # | n/a |
Catalog # | ABIN568604 |
Price | |
Order / More Info | Protein S / PROS1 Antibody from ANTIBODIES-ONLINE GmbH |
Product Specific References | n/a |
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