The three-dimensional structure of canavalin at 3.0 A resolution by X-ray diffraction analysis.

The structure of the jack bean (Canavalia ensiformis) protein canavalin, which forms the classical vicillin fraction of the seed protein in this species, has been determined for the rhombohedral (R3) crystal form to 3.0-A resolution. X-ray diffraction data were collected by the screened precession method for the native protein and five heavy atom derivatives and the phases were determined by conventional isomorphous replacement. The electron...