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Nucleic Acids Res. 1977 December; 4(12): 4091–4108.
PMCID: PMC343228
The use of nuclease P1 in sequence analysis of end group labeled RNA.
M Silberklang, A M Gillum, and U L RajBhandary
Abstract
A method is described for the direct sequence analysis of 20-25 nucleotides from the termini of 5'- or 3'-end-group [32P] labeled RNA. The method involves partial endonucleolytic digestion of the labeled RNA with nuclease P1 (from Penicillium citrinum) followed by separation of the partial digestion products by two-dimensional homochromatography, the nucleotide sequence being determined by mobility shift analysis. This procedure has been applied to the sequence analysis of the terminal regions of tRNAs and of high molecular weight RNA, such as messenger RNA or viral RNA. A further application involves its use in conjunction with snake venom phosphodiesterase to determine the sequence of 5'-end group labeled oligonucleotides, containing modified bases, derived from T1 or pancreatic RNase digestion of tRNA.
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Selected References
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