Purification, crystallization and preliminary X-ray analysis of a mannose-binding lectin from bluebell (Scilla campanulata) bulbs.
Crystals have been grown of a mannose-specific lectin from bluebell (Scilla campanulata) bulbs in a form suitable for X-ray diffraction studies. The crystals, which diffract to high resolution, grew in hanging drops by vapour diffusion, equilibrating with a solution of 70% saturated ammonium sulfate at pH 4.7-4.8 at 293 K, in the absence of any mannose saccharides. Crystals are orthorhombic, P2(1)2(1)2, with unit-cell dimensions a = 70.78, b = 93.69, c = 46.92 A. The functional lectin molecule is organized as a tetramer of four identical 14 kDa subunits, with only two subunits in the asymmetric unit. Data to 1.86 A resolution have been recorded and the structure determined by the molecular replacement method.
School of Biomolecular Sciences, Liverpool John Moores University, England. bmslwri1@livjm.ac.uk
L M
LM
Wright
S D
SD
Wood
C D
CD
Reynolds
P J
PJ
Rizkallah
W J
WJ
Peumans
E J
EJ
Van Damme
A K
AK
Allen