3.4.17.21 | Ca2+ |
even a slight disruption of the Ca2+-binding site destabilizes the three-dimensional fold of glutamate carboxypeptidase II and is associated with impaired secretion, a high propensity to form nonphysiological oligomers, and an inability to bind active site-targeted ligands. Additionally, the Ca2+-binding site is critical for maintenance of the native homodimeric quaternary arrangement of GCPII, which is indispensable for its enzymatic activity |
755336 |