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Identification of ubiquitin ligases required for skeletal Muscle Atrophy
Journal article   Peer reviewed

Identification of ubiquitin ligases required for skeletal Muscle Atrophy

Sue C Bodine, Esther Latres, Zhen-Qiang Pan, David M Valenzuela, Thomas M Dechiara, Trevor N Stitt, George D Yancopoulos, David J Glass, Susanne Baumhueter, Venus K.-M Lai, …
Science (American Association for the Advancement of Science), Vol.294(5547), pp.1704-1708
2001
DOI: 10.1126/science.1065874
PMID: 11679633

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Abstract

Skeletal muscle adapts to decreases in activity and load by undergoing atrophy. To identify candidate molecular mediators of muscle atrophy, we performed transcript profiling. Although many genes were up-regulated in a single rat model of atrophy, only a small subset was universal in all atrophy models. Two of these genes encode ubiquitin ligases: Muscle RING Finger 1 (MuRF1), and a gene we designate Muscle Atrophy F-box(MAFbx), the latter being a member of the SCF family of E3 ubiquitin ligases. Overexpression of MAFbx in myotubes produced atrophy, whereas mice deficient in either MAFbx orMuRF1 were found to be resistant to atrophy. These proteins are potential drug targets for the treatment of muscle atrophy.
Neurology Biological and medical sciences Diseases of striated muscles. Neuromuscular diseases Medical sciences

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