r l g r a g a u2193 y i f s s d t g s g h l q q k s v r 5 20 site construct 3 encoding the recognition peptide with seq id no 13 as follows g r a g a u2193 y i f s s d t g s g h l q q k s v r 20 15 site construct 4 encoding the recognition peptide with seq id no 14 as follows s g i t f g d f d d v l r l g r a g a u2193 y i f s s d t g s g h l q q k 20 10 site construct 5 encoding the recognition peptide with seq id no 15 as follows s g i t f g d f d d v l r l g r a g a u2193 y i f s s d t g s g 20 5 site construct 6 encoding the recognition peptide with seq id no 16 as follows s g i t f g d f d d v l r l g r a g a u2193 y i f s s 20 0 site construct 7 encoding the recognition peptide with seq id no 17 as follows s g i t f g d f d d v l r l g r a g a u2193 le hhhhhhhh the eight substrates green fluorescent protein fused with the eight recognition site variant given above are schematically illustrated also in fig4 a.