al-Arif A, Sporn MB. 2'-O-methylation of adenosine, guanosine, uridine, and cytidine in RNA of isolated rat liver nuclei.
Proc Natl Acad Sci U S A 1972;
69:1716-9. [PMID:
4340155 PMCID:
PMC426785 DOI:
10.1073/pnas.69.7.1716]
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Abstract
Nuclei isolated from rat liver, when incubated with methyl-labeled S-adenosylmethionine, incorporated label into 2'-O-methyladenosine, 2'-O-methylguanosine, 2'-O-methyluridine, and 2'-O-methylcytidine of endogenous nuclear RNA. Addition of ribosomal RNA from wheat germ to the reaction markedly stimulated 2'-O-methylation of total RNA. The relative incorporation of label into the four different 2'-O-methyl ribonucleosides was greatly changed by the addition of wheat germ RNA. There was much more 2'-O-methylation of the purine ribonucleosides, relative to the pyrimidine ribonucleosides, in the reaction stimulated by wheat germ RNA.
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