Figure 4From: Structural definition and substrate specificity of the S28 protease family: the crystal structure of human prolylcarboxypeptidaseThe hydrophobic substrate-binding pocket of PRCP. The putative proline-binding pocket is formed by Trp 432 and Trp 359 based on structural identity with other prolyl peptidases and the spatial alignment with the Ser 179-His 455-Asp 430 catalytic triad.Back to article page