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Updated: May 13, 2026
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Published on: February 12, 2013
Obscurins: unassuming giants enter the spotlight
Nicole A Perry1, Maegen A Ackermann, Marey Shriver
1Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
IUBMB Life
|March 21, 2013
Summary
Obscurins are giant proteins crucial for muscle function. Recent findings reveal their unexpected roles in cell signaling and disease, extending beyond muscle tissues.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Obscurin, a giant protein (~720 kDa), is vital for striated muscle function.
- Its roles in cardiac and skeletal muscle are well-established.
- Emerging evidence shows obscurins in diverse cell types.
Purpose of the Study:
- To provide an overview of obscurins.
- To highlight novel findings on obscurins' functions.
- To emphasize their roles in cell signaling and disease progression.
Main Methods:
- Literature review of obscurin research.
- Analysis of recent studies on obscurin variants.
- Synthesis of data on obscurin involvement in cellular processes.
Main Results:
- Obscurins are expressed in various cell types beyond muscle.
- These proteins participate in diverse cellular processes.
- Obscurin dysfunction is linked to cardiac hypertrophy and cancer.
Conclusions:
- Obscurins have previously unrecognized functions in cell signaling.
- Obscurins play a significant role in disease progression.
- Further research into obscurins is warranted for understanding cellular mechanisms and pathology.
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