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TChIP-Seq: Cell-Type-Specific Epigenome Profiling

TChIP-Seq: Cell-Type-Specific Epigenome Profiling

Published on: January 23, 2019

Basic biology of GAPDH.

Norbert W Seidler¹

¹Department of Biochemistry, Kansas City University of Medicine and Biosciences, Kansas City, MO, USA.

Advances in Experimental Medicine and Biology

|August 2, 2012

Summary

This summary is machine-generated.

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a highly conserved gene with complex regulation and diverse functions beyond glycolysis. Its altered expression in cancer and unique properties offer potential therapeutic and research avenues.

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Area of Science:

Biochemistry
Molecular Biology
Genetics

Background:

The Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) gene is highly conserved, featuring complex regulatory elements and pseudogenes.
GAPDH's glycolytic function is evident in its increased expression in cancer cells, suggesting potential for therapeutic intervention.
The protein's abundance and established use as a loading control, alongside its paralog GAPDHS, highlight its significance.

Purpose of the Study:

To explore the intricate regulatory mechanisms and diverse functions of the GAPDH gene and protein.
To investigate the implications of GAPDH's altered expression in disease states like cancer.
To examine the enzymology, subunit interactions, and potential therapeutic applications of GAPDH.

Main Methods:

Bioinformatic analysis of GAPDH gene structure and regulatory elements.
Comparative genomics to identify pseudogenes and paralogs like GAPDHS.
Biochemical assays to characterize GAPDH enzymology and subunit interactions.

Main Results:

Identified complex promoter regions and regulatory elements in the GAPDH gene, including potential distal intronic elements.
Observed increased GAPDH expression in cancer cells, correlating with its glycolytic role.
Characterized the well-defined active site and catalytic mechanism, while noting ongoing research into inter-subunit interactions and emerging properties.

Conclusions:

GAPDH exhibits complex gene regulation, pseudogene formation, and diverse functions beyond glycolysis, including roles in cancer.
Its altered expression and unique enzymatic properties present opportunities for therapeutic strategies and further research.
Understanding GAPDH's subunit interactions and asymmetry may unlock insights into its functional diversity.