Table 2.
N-terminal sequence of dull black soybean (G. max) trypsin inhibitor in comparison with related leguminous trypsin/chymotrypsin inhibitors (identical residues are underscored)
| Residue number | Sequence | Residue number | % Identity to BSKTI | |
|---|---|---|---|---|
| Kunitz-type trypsin inhibitor from dull black soybean (G. max) | 1 | DFVIDNEGNPIEDGG | 15 | 100 |
| Kunitz-type trypsin inhibitor homolog from spinach leaves (Spinacia oleracea) | 1 | DFVLDNEGNPLENGG | 15 | 80 |
| Kunitz-type trypsin inhibitor from wild soybean (G. soja) | 26 | DFVLDNEGNPLENGG | 40 | 80 |
| Trypsin inhibitor subtype B from yellow soybean (G. max) | 26 | DFVLDNEGNPLDSGG | 40 | 73 |
| Kunitz-type trypsin inhibitor from soybean (G. max) | 26 | DIVFDTEGNPIRNGG | 40 | 66 |
| Chymotrypsin inhibitor from winged bean (Psophocarpus tetragonolobus) | 2 | DDLVDAEGNLVENGG | 16 | 53 |
| Acidic trypsin inhibitor 2 from winged bean (P. tetragonolobus) | 1 | ZELVDVEGKTVLNGG | 15 | 33 |
| Basic trypsin inhibitor 1 from winged bean (P. tetragonolobus) | 1 | EPLLDSEGELVRNGG | 15 | 33 |
| Trypsin inhibitor (Erythrina latissima) | 1 | VLLDGNGEVVQNGG | 14 | 27 |
BSKTI = Kunitz-type trypsin inhibitor (dull black soybean).