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. 1984 Mar;81(5):1346–1350. doi: 10.1073/pnas.81.5.1346

Isolation and characterization of the rat tyrosine aminotransferase gene.

T Shinomiya, G Scherer, W Schmid, H Zentgraf, G Schütz
PMCID: PMC344830  PMID: 6143318

Abstract

Tyrosine aminotransferase (TAT; L-tyrosine:2-oxoglutarate aminotransferase, EC 2.6.1.5) from rat liver is subject to glucocorticoid, cAMP, and developmental control. To study the underlying regulatory mechanisms, the TAT structural gene was isolated from a lambda bacteriophage rat DNA library. Heteroduplex analysis revealed that the 2.4-kilobase-long TAT mRNA is encoded by a gene that extends over 11 kilobases and is interrupted by 11 introns. To characterize the presumptive control region, the DNA sequence around the 5' end of the gene was determined and the start site of transcription was identified by nuclease S1 protection experiments. A short sequence homology in an equivalent position relative to the cap site was detected between TAT and tryptophan oxygenase, another glucocorticoid-controlled gene from rat liver. This sequence is related to the sequence 5' T-G-T-T-C-T 3' found in regions of the long terminal repeat of mouse mammary tumor virus, which has been shown to interact with the glucocorticoid receptor [Scheidereit, C., Geisse, J., Westphal, H. M. & Beato, M. (1983) Nature (London) 304, 749-752].

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Selected References

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