Crystallization and preliminary X-ray study of β-­mannosidase from Trichoderma reesei

β-Mannosidase from Trichoderma reesei, a 105 kDa glycoprotein, has been crystallized. The crystals belong to the space group P41212 or P43212, with unit-cell dimensions a = b = 165.86, c = 122.46 A, and diffract beyond 2.75 A resolution. X-ray diffraction data were collected from a frozen crystal on a synchrotron X-ray source.