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. 1979;6(5):1747–1760. doi: 10.1093/nar/6.5.1747

The regulatory region of MS2 phage RNA replicase cistron. III. Characterization of fragments resulting from S1 nuclease digestion.

I Jansone, V Berzin, V Gribanov, E J Gren
PMCID: PMC327808  PMID: 109812

Abstract

The functionally active fragments MS2 R(-53 leads to 6) and MS2 R(-53 leads to 3) comprising the regulatory region for the replicase cistron have been isolated from MS2 RNA-coat protein complex following T1 RNase digestion. In order to obtain shorter fragments, active in coat protein binding and initiation of translation, MS2 R(-53 leads to 6) was cleaved with S1 nuclease. The results indicate that S1 nuclease attacks the most susceptible loop regions of the two hairpin helices of MSZ R(-53) leads to 6). Among the three fragments which have been isolated, only MS2 R(-35/33 leads to 6) containing the intact hairpin (b) region with initiation codon AUG is active in the coat protein binding. Functional activity exerted by another polynucleotide MS R(-17 leads to 6) supports the assumption that specific binding with the coat protein is determined by the hairpin (b) region prior to the replicase cistron.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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