Cited by 3,521Muscle Physiology and DisordersUbiquitin and proteasome pathwaysMuscle metabolism and nutrition

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Identification of ubiquitin ligases required for skeletal muscle atrophy.

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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 or MuRF1 were found to be resistant to atrophy. These proteins are potential drug targets for the treatment of muscle atrophy.

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Crossref · 10.1126/science.1065874

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  1. Additional data and methods used in this study are described in the supplementary Web material available on Science Online at www.sciencemag.org/cgi/content/full/1065874/DC1. GenBank accession numbers are as follows: rat MAFbx ; human MAFbx ; and rat MuRF1 . For Northern methods and probe details ref. (2) of Web material. Knockouts were done with the proprietary Velocigene technology which allows for the rapid and high-throughput generation of custom gene mutations in mice (T. M. De Chiara W. T. Poueymirou D. M. Valenzuela G. D. Yancopoulos unpublished data).
  2. Bains W., Ponte P., Blau H. M., Kedes L., Mol. Cell. Biol. 4, 1449 (1984).

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Metadata

Authors
Bodine, S. C., Latres, E., Baumhueter, S., Lai, V. K.-M., Nunez, L., Clarke, B. A., Poueymirou, W. T., Panaro, F. J., Na, E., Dharmarajan, K., Pan, Z.-Q., Valenzuela, D. M., DeChiara, T. M., Stitt, T. N., Yancopoulos, G. D., & Glass, D. J.
Affiliations
  • Regeneron (United States) (US)
  • Applied Biosystems, 850 Lincoln Center Drive, Foster City, CA 94404, USA.
  • Regeneron Pharmaceuticals, 777 Old Saw Mill River Road, Tarrytown, NY, 10591–6707, USA.
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Glass, David J.
Venue
Science
Published
2001-11-23
Volume
294
Issue
5547
Pages
1704-1708
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2167033587
Cited by
3,521
References
18
Citations by year
2026: 124 · 2025: 133 · 2024: 141 · 2023: 139 · 2022: 157 · 2021: 151 · 2020: 202 · 2019: 175 · 2018: 180 · 2017: 175 · 2016: 175 · 2015: 178 · 2014: 182 · 2013: 190 · 2012: 173
FWCI
15.71
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
Keywords
skeletal muscle atrophy, ubiquitin ligase, MuRF1, atrogin-1, SCF ubiquitin ligase, F-box protein, myotubes
MeSH terms
Amino Acid Sequence, Animals, Cloning, Molecular, Creatine Kinase, DNA-Binding Proteins, Humans, Immobilization, Isoenzymes, Molecular Sequence Data, Muscle Denervation, Muscle Proteins, Muscular Atrophy, Peptide Synthases, Phenotype, Protein Binding, RNA, Messenger, Trans-Activators, Up-Regulation, Rats, Sprague-Dawley, Gene Deletion, MyoD Protein, Myogenin, Mice, Knockout, Muscle, Skeletal, Hindlimb Suspension, Gene Expression Profiling, SKP Cullin F-Box Protein Ligases, Mice, Rats, Myogenic Regulatory Factor 5, Creatine Kinase, MM Form

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