Purification and characterization of a Z-pro-prolinal-insensitive Z-Gly-Pro-7-amino-4-methyl coumarin-hydrolyzing peptidase from bovine serum--a new proline-specific peptidase.

@article{Birney2001PurificationAC,
  title={Purification and characterization of a Z-pro-prolinal-insensitive Z-Gly-Pro-7-amino-4-methyl coumarin-hydrolyzing peptidase from bovine serum--a new proline-specific peptidase.},
  author={Yvonne A. Birney and Brendan Francis O'Connor},
  journal={Protein expression and purification},
  year={2001},
  volume={22 2},
  pages={286-98}
}
The study of a new proline-specific peptidase from bovine serum is presented. The enzyme readily cleaves the prolyl oligopeptidase (PO) substrate Z-Gly-Pro-MCA, liberating the fluorophore MCA, thus allowing quantification of enzyme activity. Unlike PO, however, this peptidase is completely insensitive to the PO-specific inhibitor Z-Pro-prolinal and has been designated Z-Pro-prolinal-insensitive Z-Gly-Pro-MCA-hydrolyzing peptidase (ZIP). The two peptidases were successfully separated from each… CONTINUE READING

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