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Crystallization of the calcium-activated phosphoenolpyruvate carboxykinase from Escherichia coli K12.

Single crystals of phosphoenolpyruvate carboxykinase from Escherichia coli K12 have been grown in the orthorhombic crystal system. Single crystals developed to a maximum size of 0.25 mm x 0.25 mm x 1.5 mm by the technique of washing and reseeding. The space group is P2(1)2(1)2(1), with a = 77.24 A, b = 89.18 A, c = 93.24 A and Z = 4; there is one enzyme molecule per crystallographic asymmetric unit and the solvent content is estimated to be 59%. The crystals diffract to at least 2.8 A d spacings and decompose in the X-ray beam after approximately two days of exposure.[1]

References

  1. Crystallization of the calcium-activated phosphoenolpyruvate carboxykinase from Escherichia coli K12. Delbaere, L.T., Vandonselaar, M., Glaeske, D., Jabs, C., Goldie, H. J. Mol. Biol. (1991) [Pubmed]
 
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