Protein disulfide isomerase a multifunctional protein with multiple physiological roles
Hyder Ali Khan1, Bulent Mutus1
1Chemistry and Biochemistry Department, University of Windsor Windsor, ON, Canada.
Frontiers in Chemistry
|September 11, 2014
Summary
Protein disulfide isomerase (PDI) is a crucial redox protein with multiple catalytic activities. This review explores PDI's structure, functions in protein folding, and roles in cellular redox regulation.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Protein disulfide isomerase (PDI) belongs to the thioredoxin superfamily, known for redox functions.
- PDI exhibits thiol-disulfide oxireductase, disulfide isomerase, and chaperone activities.
- Initially found in the endoplasmic reticulum, PDI is also present in cell surfaces and cytosol.
Purpose of the Study:
- To review recent advances linking PDI's structural features to its catalytic roles.
- To provide an overview of PDI's physiological and pathophysiological functions.
- To highlight PDI's involvement in redox regulation and protein folding.
Main Methods:
- Literature review of recent scientific publications.
- Analysis of structural data and functional studies of PDI.
- Synthesis of information on PDI localization and biological roles.
Main Results:
- Structural insights reveal mechanisms behind PDI's diverse catalytic activities.
- PDI plays significant roles in maintaining cellular redox homeostasis.
- Dysfunctional PDI is implicated in various pathophysiological conditions.
Conclusions:
- PDI's structural versatility underlies its multiple functions in protein folding and redox control.
- Understanding PDI is critical for insights into cellular health and disease.
- Further research on PDI promises therapeutic applications.
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