Hydrolysis of ribonucleoside 2',3'-cyclic phosphates by influenza and Newcastle disease viruses

Rosenbergová, M.; Pristasová, S.; Prachar, J.

Acta Virologica 25(2): 71-77

1981


ISSN/ISBN: 0001-723X
PMID: 6113752
Document Number: 172207
Two enzymatic activities hydrolysing ribonucleoside 2', 3'-cyclic phosphates (2', 3'-cNMP) to 2'- or 3'- nucleoside monophosphate were found associated with influenza and Newcastle disease viruses. The two enzymatic activities differed from each other by temperature optima and thermoresistance. 2', 3'-Cyclic nucleotide 3'-phosphohydrolase was responsible for splitting of the substrate to 2'-NMP. Splitting of the substrate to 3'-NMP was due either to ribonuclease or to 2', 3'-cyclic nucleotide 2'-phosphohydrolase.

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