Download MendeleyThe structure of a PKD domain from polycystin-1: implications for polycystic kidney disease.
Bycroft, M., Bateman, A., Clarke, J., Hamill, S.J., Sandford, R., Thomas, R.L., Chothia, C.(1999) EMBO J 18: 297-305
- PubMed: 9889186
- DOI: https://doi.org/10.1093/emboj/18.2.297
- Primary Citation of Related Structures:
1B4R - PubMed Abstract:
Most cases of autosomal dominant polycystic kidney disease (ADPKD) are the result of mutations in the PKD1 gene. The PKD1 gene codes for a large cell-surface glycoprotein, polycystin-1, of unknown function, which, based on its predicted domain structure, may be involved in protein-protein and protein-carbohydrate interactions. Approximately 30% of polycystin-1 consists of 16 copies of a novel protein module called the PKD domain. Here we show that this domain has a beta-sandwich fold. Although this fold is common to a number of cell-surface modules, the PKD domain represents a distinct protein family. The tenth PKD domain of human and Fugu polycystin-1 show extensive conservation of surface residues suggesting that this region could be a ligand-binding site. This structure will allow the likely effects of missense mutations in a large part of the PKD1 gene to be determined.
Organizational Affiliation:
MRC Centre for Protein Engineering, Lensfield Road, Cambridge CB2 1EW. mb10031@cus.cam.ac.uk
