we knew that in-igf-bp showed comparatively equal binding affinities with both igf-i and igf-ii , and binding of these ligands to cell receptors ( igf-ii ) and antibodies ( igf-i ) was very specific ( 2 % and 0.5 % cross-reactivity for igf-i and igf-ii , respectively ) .
C0037657
igf
C0021665
igf-i