The crystals of a mannose-specific jacalin-related lectin from Morus nigra are merohedrally twinned

MornigaM, a lectin from Morus nigra, belongs to the mannose-binding subgroup of the family of jacalin-related plant lectins. It was crystallized in the P6₅ space group, with unit-cell parameters a = b = 110.74, c = 159.28 Å. The partially merohedrally twinned crystals could be detwinned and a subsequent molecular-replacement solution could be found using the coordinates of jacalin. Preliminary analysis clearly shows the tetrameric assembly of this protein. Furthermore, data from MornigaM crystals soaked in a mannose solution were collected.