Regulation of Skeletal Muscle Differentiation by a Rapamycin -Sensitive Signaling Pathway
Erbay, Ebru
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https://hdl.handle.net/2142/86664
Description
Title
Regulation of Skeletal Muscle Differentiation by a Rapamycin -Sensitive Signaling Pathway
Author(s)
Erbay, Ebru
Issue Date
2004
Doctoral Committee Chair(s)
Chen, Jie
Department of Study
Microbiology
Discipline
Microbiology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Cell
Language
eng
Abstract
To gain further insight into myogenic regulation of mTOR, the structure-function relationship of mTOR was examined by a series of truncation and deletion mutants. Strikingly, the results indicate that the C-terminal 1187 amino acids are sufficient for mTOR's myogenic function and the N-terminal half of the protein is completely dispensable. Both the FKBP 12-rapamycin binding domain (FRB) and the kinase domain are necessary for mTOR's myogenic function despite kinase activity being dispensable. These observations provide structural insights into the regulatory mechanisms of mTOR, possibly involving association with regulators, and warrant further investigation to identify the potential partner proteins critical in mTOR signaling during skeletal myogenesis.
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