mGal-1 displays impaired capacity to be stabilized by ligand.
A, incubation of 40μm Gal-1 in PBS, with or without
2-ME or lactose as indicated followed by determination of the soluble
fraction. B, incubation of 40 μm mGal-1 in PBS, with or
without 2-ME or lactose as indicated followed by determination of the soluble
fraction. C and D, surface plasmon resonance analysis of the
binding of Gal-1 (C) or mGal-1 (D) to lactose. E,
fluorescent image acquired following SDS-PAGE of BS3 chemically
cross-linked Alexa Fluor 488-labeled Gal-1 or mGal-1. D, dimer;
M, monomer.