Title : Calcium-independent activation of prothrombin on membranes with positively charged lipids.

Pub. Date : 1988 Dec 13

PMID : 3233222






2 Functional Relationships(s)
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1 Membranes composed of a mixture of phosphatidylcholine (PC) and positively charged lipids like stearylamine, sphingosine, or hexadecyltrimethylammonium bromide caused a more than 1000-fold increase of the rate of prothrombin activation. stearylamine coagulation factor II, thrombin Homo sapiens
2 Calcium ions strongly inhibited prothrombin activation on vesicles composed of PC and stearylamine (80/20 M/M), which indicates that the regions of prothrombin and/or factor Xa containing gamma-carboxyglutamic acid (gla) are important for the interaction of these proteins with positively charged membranes. stearylamine coagulation factor II, thrombin Homo sapiens