the purified preparation ( bp-28 ) bound both igfs with high affinity [ ka , 6.55 +/- 2.24 ( +/- sd ) l/nmol for igf-i and 3.23 +/- 1.05 l/nmol for igf-ii ] , with approximately 0.5 mol binding sites/mol bp-28 for either ligand .
C0037657
igfs
C0021665
1