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Characterization of a cDNA coding for rat glutamic acid decarboxylase
R J Wyborski1, R W Bond, D I Gottlieb
1Department of Anatomy and Neurobiology, Washington School of Medicine, St. Louis, MO 63310.
Brain Research. Molecular Brain Research
|August 1, 1990
Summary
Researchers isolated rat glutamate decarboxylase (GAD) cDNA, revealing high homology with feline GAD. This discovery aids in understanding GAD gene structure and regulation, crucial for neurotransmitter synthesis research.
Area of Science:
- Neuroscience
- Molecular Biology
- Biochemistry
Background:
- Glutamic acid decarboxylase (GAD) is a key enzyme in neurotransmitter synthesis.
- Understanding GAD's genetic structure is vital for neurological research.
Purpose of the Study:
- To isolate and sequence rat GAD cDNA.
- To compare rat GAD cDNA with feline GAD cDNA.
- To investigate potential regulatory roles of conserved non-coding regions.
Main Methods:
- cDNA cloning and sequencing.
- Sequence analysis and homology comparison.
Main Results:
- Isolated and sequenced 3216 bp of rat GAD cDNA.
- Achieved 97% amino acid identity between rat and feline GAD coding regions.
- Identified conserved homology in 5' and 3' non-coding regions.
Conclusions:
- High interspecies homology suggests strong evolutionary pressure on GAD primary structure.
- Conserved non-coding regions may be involved in GAD mRNA regulation.
- The rat GAD cDNA sequence provides a valuable tool for further GAD gene research.