Composition, methods and reagents for the synthesis of a soluble form of human PHEX
US7427498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | May 1, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K48/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a soluble form of PHEX, PHEX being a type II integral membrane glycoprotein. This enzyme is the gene product of a phosphate-regulating gene with homologies to endopeptidases on the X chromosome. To produce a soluble form of PHEX, the transmembrane anchor domain has been modified to encode a signal peptidase coding sequence. The soluble PHEX therefore comprises the active ectodomain. An inactive mutant of PHEX is also an object of this invention. Both soluble and inactive mutant forms of PHEX can be used to screen ligands to PHEX. These ligands can also be used as substrates or inhibitors of PHEX. PHEX being phosphaturic, an inhibitor thereof will be used to treat phosphaturia and/or hypophosphatemia. On the opposite, a substrate for PHEX or PHEX itself can be used to treat hyperphosphatemia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.