Structural Insights into the Mechanism of pH-dependent Ligand Binding and Release by the Cation-dependent Mannose 6-Phosphate Receptor.Olson, L.J., Hindsgaul, O., Dahms, N.M., Kim, J.J.
(2008) J Biol Chem 283: 10124-10134
- PubMed: 18272523
- DOI: https://doi.org/10.1074/jbc.M708994200
- Primary Citation of Related Structures:
2RL7, 2RL8, 2RL9, 2RLB, 3CY4
- PubMed Abstract:
The cation-dependent mannose 6-phosphate receptor (CD-MPR) is a key component of the lysosomal enzyme targeting system that binds newly synthesized mannose 6-phosphate (Man-6-P)-containing acid hydrolases and transports them to endosomal compartments. The interaction between the MPRs and its ligands is pH-dependent; the homodimeric CD-MPR binds lysosomal enzymes optimally in the pH environment of the trans Golgi network (pH approximately 6.5) and releases its cargo in acidic endosomal compartments (
Department of Biochemistry, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.