PMID- 23856265 OWN - NLM STAT- MEDLINE DCOM- 20131021 LR - 20220330 IS - 1878-1594 (Electronic) IS - 1521-690X (Linking) VI - 27 IP - 3 DP - 2013 Jun TI - Calcium-sensing receptor (CaSR) mutations and disorders of calcium, electrolyte and water metabolism. PG - 359-71 LID - S1521-690X(13)00039-0 [pii] LID - 10.1016/j.beem.2013.04.007 [doi] AB - The extracellular calcium-sensing receptor (CaSR) is a family C G-protein-coupled receptor (GPCR) that is expressed at multiple sites, including the parathyroids and kidneys. The human CASR gene, located on chromosome 3q21.1, encodes a 1078 amino acid protein. More than 230 different disease-causing mutations of the CaSR have been reported. Loss-of-function mutations lead to three hypercalcemic disorders, which are familial hypocalciuric hypercalcemia (FHH), neonatal severe hyperparathyroidism and primary hyperparathyroidism. Gain-of-function mutations, on the other hand, result in the hypocalcemic disorders of autosomal dominant hypocalcemia and Bartter syndrome type V. Moreover, autoantibodies directed against the extracellular domain of the CaSR have been found to be associated with FHH in some patients, and also in some patients with hypoparathyroidism that may be part of autoimmune polyglandular syndrome type 1. Studies of disease-causing CASR mutations have provided insights into structure-function relationships and highlighted intra-molecular domains that are critical for ligand binding, intracellular signaling, and receptor trafficking. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Hannan, Fadil M AU - Hannan FM AD - Academic Endocrine Unit, Oxford Centre for Diabetes, Endocrinology and Metabolism, Nuffield Department of Clinical Medicine, University of Oxford, Churchill Hospital, Oxford OX3 7LJ, UK. fadil.hannan@ocdem.ox.ac.uk FAU - Thakker, Rajesh V AU - Thakker RV LA - eng GR - G1000467/Medical Research Council/United Kingdom GR - G9825289/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130518 PL - Netherlands TA - Best Pract Res Clin Endocrinol Metab JT - Best practice & research. Clinical endocrinology & metabolism JID - 101120682 RN - 0 (Receptors, Calcium-Sensing) SB - IM MH - Humans MH - Hypercalcemia/*genetics/metabolism MH - Hypocalcemia/*genetics/metabolism MH - Hypoparathyroidism/genetics/metabolism MH - *Mutation MH - Receptors, Calcium-Sensing/*genetics/metabolism MH - Water-Electrolyte Balance/*genetics OTO - NOTNLM OT - Bartter syndrome OT - G-protein-coupled receptor OT - autoantibodies OT - autosomal dominant hypocalcemia OT - familial hypocalciuric hypercalcemia OT - parathyroid hormone OT - primary hyperparathyroidism EDAT- 2013/07/17 06:00 MHDA- 2013/10/22 06:00 CRDT- 2013/07/17 06:00 PHST- 2013/07/17 06:00 [entrez] PHST- 2013/07/17 06:00 [pubmed] PHST- 2013/10/22 06:00 [medline] AID - S1521-690X(13)00039-0 [pii] AID - 10.1016/j.beem.2013.04.007 [doi] PST - ppublish SO - Best Pract Res Clin Endocrinol Metab. 2013 Jun;27(3):359-71. doi: 10.1016/j.beem.2013.04.007. Epub 2013 May 18.