human plasminogen kringle 4 has been crystallized in two different crystal forms : monoclinic , a = 32.78 ( 3 ) , b = 49.17 ( 2 ) , c = 46.27 ( 3 ) a , beta = 100.67 degrees , space group p2 ( 1 ) , four molecules/unit cell , two molecules/asymmetric unit ;
C0032140
plasminogen
C0064417
kringle