Disulfide bonding in protein biophysics.
1Department of Structural Biology, Weizmann Institute of Science, Rehovot 76100, Israel. deborah.fass@weizmann.ac.il
Annual Review of Biophysics
|January 10, 2012
Summary
Disulfide bonds in extracellular proteins provide more than just stability. They also confer unique mechanical properties, prevent harmful aggregation, and facilitate intercellular transport of cargo.
Area of Science:
- Biochemistry
- Structural Biology
- Extracellular Matrix Biology
Background:
- Proteins in the extracellular environment are frequently rich in disulfide bonds.
- The functional roles of disulfide bonds have historically been linked to protein stability.
- Recent research highlights a broader functional diversity of disulfide bonding in extracellular proteins.
Purpose of the Study:
- To review the diverse biophysical roles of disulfide bonding in extracellular proteins.
- To illustrate how disulfide bonds contribute to protein mechanics and function.
- To focus on case studies of disulfide bonding in the extracellular environment.
Main Methods:
- Literature review of studies on disulfide bonding in extracellular proteins.
- Analysis of case studies demonstrating diverse functions of disulfide bonds.
- Focus on biophysical properties and functional implications.
Main Results:
- Disulfide bonds enhance thermodynamic stability.
- Specific disulfide configurations impart mechanical properties for force sensing.
- Disulfides prevent protein aggregation and facilitate cargo transport.
Conclusions:
- Disulfide bonds play multifaceted roles beyond stability in extracellular proteins.
- Understanding disulfide bonding is crucial for comprehending protein function and evolution.
- Disulfide bonds are key structural elements in extracellular protein mechanics and intercellular transport.
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