Additional crystal forms of the E. coli class II fructose-1,6-bisphosphate aldolase.
We have obtained two additional crystal forms of the metal-dependent class II fructose-1,6-bisphosphate aldolase from Escherichia coli. Crystals in the shape of elongated plates have unit-cell dimensions a = 73.4, b = 120.0, c = 190.1 A, orthorhombic space group P2(1)2(1)2(1). Monoclinic prisms have unit-cell dimensions a = 67.7, b = 104.3, c = 52.8 A, beta = 105 degrees, space group P2(1). Diffraction to slightly better than 3.0 A, has been observed for both forms using in-house and synchrotron facilities. These crystal forms may aid the structure solution of this enzyme by presenting additional forms for heavy-atom derivatization. These forms have multiple copies of the enzyme in the asymmetric unit and averaging methods might also be useful in the analysis.
Department of Chemistry, University of Manchester, England.
Y
Y
Kitagawa
G A
GA
Leonard
S J
SJ
Harrop
M R
MR
Peterson
W N
WN
Hunter
S
S
Qamar
Berry A