Great Northern beans

Beans (dry cooked) Great Northern beans, lentils, hma beans, red kidney beans... 

There are examples of inhibitors which are specific for only one protease within a group. The best known examples Include the Kunitz soybean (Glycine max) inhibitor (14) and isoinhibitors I and II of the Great Northern bean (Phaseolus vulgaris)(15). Even these two examples are not clear cut as there is some small non-stoichiometric combination and inhibition of a-chymotrypsin. Chicken (16) and Japanese quail (17) egg white ovomucoids only inhibit trypsin. 

Snail epidermis contains at least six trypsin-kallikrein inhibitors with molecular weights ranging from 6431 to 6591 (70-72). The soybean contains two basic types of protease inhibitors, the Kunitz inhibitor of 21,500 daltons (73) and the Bowman-Birk inhibitor of 7975 daltons (74). The two are quite different proteins as shown in Figure 6. The Great Northern bean (Phaseolus vulgaris) has at least three trypsin isoinhibitors ranging in molecular weight from 8086 to 8884 (15). There are four and possibly six isoinhibitors of trypsin in lima bean (Phaseolus lunatus)(75). 

Table VIII. Amino Acid Sequence Homology Among the Bowman-Birk Soybean Trypsin Inhibitor (BB 89)> Lima Bean Trypsin Inhibitor IV (LB 75) and Great Northern Bean Trypsin Inhibitor II (GB 90)...

There is great homology between the Bowman-Birk soybean trypsin inhibitor (89), lima bean trypsin inhibitor IV (75) and the Great Northern trypsin inhibitor II (90) as shown in Table VIII The tryptic peptide maps of Great Northern isoinhibitors I and mb were very similar while isoinhibitors I and II had no peptides in common (15) ... 

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