Abstract
Mouse and Heligmosomoides polygyrus constitute a readily manipulated small-animal laboratory model for investigating host-nematode interactions. Two major forms of glutathione transferase (GST) are expressed in H. polygyrus adult worms following primary infection. One of these forms belongs to a new class of GST which has only been found in the nematode phylum and therefore presents a possible target for nematode control. In this study, crystals were obtained of a recombinant representative of this new GST class from H. polygyrus. These crystals belong to the triclinic space group P1, with unit-cell parameters a = 72.7, b = 74.0, c = 88.6 A, alpha = 79.1, beta = 80.1, gamma = 81.5 degrees, and are likely to contain four homodimers in the asymmetric unit. X-ray diffraction data were collected to 1.8 A resolution on station A1 at the Cornell High-Energy Synchrotron Source (CHESS).
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