Concanavalin APDB ID: 3CNA
ConA is a sugar-binding protein from jack beans. To see an example of natural circular permutation, compare this with peanut lectin in PDB entry 2pel.
Discussed Structures from Concanavalin A and Circular Permutation
Hardman, K.D., Ainsworth, C.F. (1972) Structure of concanavalin A at 2.4-A resolution. Biochemistry 11: 4910-9