Characterization of 5‘—proximal sequence of mouse GABA transporter gene (GAT—1)
1997
The cDNA molecule encoding the mouse GABA transporter gene(GAT-1) was used as probe for selecting GAT-1 gene from mouse genomic library.A positive clone,harboring the whole open reading frame of the GAT-1 protein and designated as MGABAT-G,was fished out from the library,the 5' proximal region and intron 1 were sequenced and analysed,and low homology was found in the above region between GAT-1 genes from mouse and human except some short conserved sequences.The DNA-protein interactions between DNA fragments containing the conserved sequences in the 5' proximal region and nuclear proteins from different tissues of mouse were studied by means of gel-shift assay,and Southern-Western blot.The results indicate a possible positive-negative regulation mode controlling the expression of the mouse GAT-1 gene.
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