Crystallization and preliminary crystallographic studies of juvenile hormone-binding protein from Galleria mellonella haemolymph.

Juvenile hormone-binding protein (JHBP) isolated from Galleria mellonella haemolymph has been crystallized using the hanging-drop method in two polymorphic forms. The best diffracting crystals (2.7 Å) are trigonal, space group P3[sub 1]21 (or P3[sub 2]21), with unit-cell parameters a = 110.4, c = 93.9 Å. X-ray diffraction data have been collected for the native crystals using synchrotron radiation and cryogenic conditions (100 K). [ABSTRACT FROM AUTHOR]