PRELIMINARY CRYSTALLOGRAPHIC DATA ON BUFFALO BETA-LACTOGLOBULIN

Lactoglobulin isolated from Italian buffalo milk has been crystallized in two different forms. Crystals of type I have been grown at pH 3.5 and belong to space group P63; the unit cell dimensions are a = b = 67 A ̊, c = 142 A ̊, and accordingly the asymmetric unit contains one dimer of molecular weight 36,000. Type II crystals, grown at pH 8.5, have only one monomer per asymmetric unit; the space group is P3121 (or enantiomorph) and the unit cell edges are: a = b = 54.4 A ̊, c = 113.2 A ̊. The crystals of the trigonal form show low radiation damage and are suitable for a structural investigation. © 1979.