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TATA-binding protein in neurodegenerative disease
W M C van Roon-Mom1, S J Reid, R L M Faull
1Division of Anatomy with Radiology, Faculty of Medicine and Health Sciences, University of Auckland, 85 Park Road, 1003 Auckland, New Zealand.
Neuroscience
|May 27, 2005
Summary
TATA binding protein (TBP) aggregation is linked to neurodegenerative diseases like SCA17. This review explores TBP
Area of Science:
- Molecular biology
- Neuroscience
- Genetics
Background:
- TATA binding protein (TBP) is crucial for transcription initiation.
- TBP contains a polyglutamine tract, implicated in neurodegenerative diseases.
- Expanded polyglutamine repeats in TBP cause spinocerebellar ataxia type 17 (SCA17).
Purpose of the Study:
- To review TBP's function in transcription and cellular processes.
- To examine TBP's role in SCA17 and other polyglutamine disorders.
- To discuss TBP's potential contribution to neurodegeneration via loss or gain of function.
Main Methods:
- Literature review of TBP function and disease association.
- Analysis of polyglutamine allele lengths in normal populations and SCA17 patients.
- Review of reported SCA17 cases and TBP's role in other neurodegenerative conditions.
Main Results:
- TBP's polyglutamine tract length varies in the general population.
- Expansion beyond 42 repeats in TBP is causative for SCA17.
- TBP aggregates are observed in several polyglutamine disorders.
Conclusions:
- TBP's involvement in neurodegeneration raises questions about loss vs. gain of function.
- Understanding TBP's role is critical for comprehending disease mechanisms.
- Further research is needed to elucidate TBP's precise contribution to neurodegenerative diseases.