Crystallization of recombinant Crithidia fasciculata tryparedoxin. |
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Authors: | M S Alphey E Tetaud D G Gourley A H Fairlamb W N Hunter |
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Affiliation: | Department of Biochemistry, University of Dundee, Dundee, DD1 5EH, United Kingdom. |
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Abstract: | Recombinant tryparedoxin, a thioredoxin homologue from Crithidia fasciculata, has been purified from an Escherichia coli expression system and used in crystallization trials. Orthorhombic needles in space group P212121, with unit cell dimensions of a = 38.63, b = 51. 47, and c = 73.41 A, have been obtained. The crystals present a monomer of approximate molecular mass 16 kDa in the asymmetric unit and diffract to 1.8-A resolution using synchrotron radiation. Structure determination will be carried out to further the understanding of the role tryparedoxin plays in regulating oxidative stress in parasitic trypanosomatids. |
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