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  • Title: [Primary structure of tRNA2Leu of bovine mammary gland. Oligonucleotides of T1-RNAse hydrolysate. Reconstruction of a total nucleotide sequence].
    Author: Tukalo MA, Vasil'eva IG, Matsuka GKh, Vlasov VB.
    Journal: Bioorg Khim; 1984 Jan; 10(1):58-67. PubMed ID: 6567466.
    Abstract:
    The oligonucleotides obtained by digestion of tRNA2Leu from cow mammary gland with T1 RNase were separated by micro-column chromatography on DEAE-cellulose in 7 M urea at pH 7,5 and 3,7, and in addition on Dowex 1 x 2. The digest consisted of 18 individual components, the larger being a tridecanucleotide. Micro-column chromatography of nucleotides on anion-exchanger AG 1 x 8 and nucleosides on Aminex A-6 was used to determine the base composition of the oligonucleotides. The oligonucleotide structure was established using terminal analysis, hydrolysis by pancreatic and U2-RNases and incomplete hydrolysis by snake venom phosphodiesterases. The total primary structure of tRNA2Leu was derived from overlapping fragments isolated after its complete hydrolysis with pancreatic and T1 RNase and using data obtained on S1-nuclease digestion of tRNA. The methods of rapid gel-sequencing were also employed for checking the nucleotide sequence of tRNA2Leu from cow mammary gland.
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