Abstract
Summary
Solubilization of bovine fibrin s preparations by phosphatidyl inositol and phosphatidyl serine has been observed whereas phosphatidyl ethanolamine and lecithin did not have this ability. The solubilizing effect did not occur with preparations of bovine fibrin i. The extent of solubilization progressively diminished with increasing ionic concentration of the system, but was not significantly influenced by the type of buffer. The importance of using only fibrin i preparations in the fibrin plate assay for fibrinolytic or activator activities and the need for careful control of the ionic strength of the assay system are stressed.
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