I. Bento et al., CRYSTALLIZATION AND PRELIMINARY-X-RAY CRYSTALLOGRAPHIC STUDIES OF THEPLANT ASPARTIC PROTEINASE CARDOSIN A, Acta crystallographica. Section D, Biological crystallography, 54, 1998, pp. 991-993
Citations number
21
Categorie Soggetti
Crystallography,"Biochemical Research Methods",Biophysics,Biology
The plant aspartic proteinase cardosin A was crystallized using vapour
diffusion. Crystals belong to the monoclinic space group C2, cell dim
ensions a = 116.9(2), b = 87.2(8), c = 81.3 (1) Angstrom, beta = 104.4
(4)degrees, and contain two molecules in the asymmetric unit related
by a non-crystallographic twofold axis. Diffraction data were collecte
d at room temperature with radiation from a synchrotron source up to 2
.85 Angstrom resolution. When the crystals were flash cooled to 110 K
in a nitrogen stream the same resolution limit could also be obtained
on a rotating-anode source. Recently, synchrotron radiation together w
ith hash cooling led to an improvement of the diffraction data to 1.72
Angstrom resolution.