Multiple protease activities in Giardia intestinalis trophozoites.

@article{Williams1995MultiplePA,
  title={Multiple protease activities in Giardia intestinalis trophozoites.},
  author={Alan G. Williams and Graham H. Coombs},
  journal={International journal for parasitology},
  year={1995},
  volume={25 7},
  pages={771-8}
}
Azocasein and a wide range of chromogenic and fluorogenic peptidyl substrates, representing 21 different peptide sequences, were degraded by the intracellular proteases present in lysates of trophozoites of Giardia intestinalis (syn lamblia) Portland 1 strain. Total protease activity differed considerably with the substrate with the p-nitroanilide derivatives Bz-pro-phe-arg-pNA and Bz-phe-val-arg-pNA being most rapidly hydrolysed (specific activities 4.2 +/- 0.4 and 1.1 +/- 0.6 U/mg protein… CONTINUE READING
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