References
Query Results -- Details
MGI Accession ID: MGI:3693150
J Number: J:116189
Other Accession IDs:
Title: Dissecting the functions of the mammalian clock protein BMAL1 by tissue-specific rescue in mice.
Authors: McDearmon EL; Patel KN; Ko CH; Walisser JA; Schook AC; Chong JL; Wilsbacher LD; Song EJ; Hong HK; Bradfield CA; Takahashi JS
Journal: Science
Volume: 314
Issue: 5803
Date: 2006 Nov 24
Year: 2006
Pages: 1304-8
Review Status: Peer Reviewed
Abstract:
The basic helix-loop-helix (bHLH)-Per-Arnt-Sim (PAS) domain transcription factor BMAL1 is an essential component of the mammalian circadian pacemaker. Bmal1-/- mice lose circadian rhythmicity but also display tendon calcification and decreased activity, body weight, and longevity. To investigate whether these diverse functions of BMAL1 are tissue-specific, we produced transgenic mice that constitutively express Bmal1 in brain or muscle and examined the effects of rescued gene expression in Bmal1-/- mice. Circadian rhythms of wheel-running activity were restored in brain-rescued Bmal1-/- mice in a conditional manner; however, activity levels and body weight were lower than those of wild-type mice. In contrast, muscle-rescued Bmal1-/- mice exhibited normal activity levels and body weight yet remained behaviorally arrhythmic. Thus, Bmal1 has distinct tissue-specific functions that regulate integrative physiology.
Additional Information:
