Abstract:
:GPRC6A is a seven-transmembrane receptor mediating signaling by a wide range of L-alpha-amino acids, a signaling augmented by the divalent cations Ca(2)(+) and Mg(2)(+). GPRC6A transcripts are detected in numerous mammalian tissues, but the physiological role of the receptor is thus far elusive. Analogously to the closely related calcium-sensing receptor, GPRC6A has been proposed to function as a metabolic sensor of Ca(2)(+) and amino acids in bone and other tissues. In the present study, we have generated the first GPRC6A knockout mice and studied their phenotype with particular focus on bone homeostasis. The generated GPRC6A knockout mice are viable and fertile, develop normally, and exhibit no significant differences in body weight compared with wild-type littermates. Assessment of bone mineral density, histomorphometry, and bone metabolism demonstrated no significant differences between 13-week-old knockout and wild-type mice. In conclusion, our data do not support a role for GPRC6A in normal bone physiology.
journal_name
J Mol Endocrinoljournal_title
Journal of molecular endocrinologyauthors
Wellendorph P,Johansen LD,Jensen AA,Casanova E,Gassmann M,Deprez P,Clément-Lacroix P,Bettler B,Bräuner-Osborne Hdoi
10.1677/JME-08-0149subject
Has Abstractpub_date
2009-03-01 00:00:00pages
215-23issue
3eissn
0952-5041issn
1479-6813pii
JME-08-0149journal_volume
42pub_type
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