14C-arginine-rich basic proteins in ascitic fluid of Ehrlich tumor.

With the use of 14C-arginine it is shown that among the ascitic fluid proteins of Ehrlich tumor there appear basic proteins rich in arginine with the content of amino acid about 14%. The amount of these proteins is about 3%. They exhibit great similarity in respect to arginine content, electrophoretic mobility to the arginine rich basic proteins isolated previously from the cytosol of Ehrlich tumor cells.