NDLI: Effect of introduction of small alkyl groups on mRNA function.

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Effect of introduction of small alkyl groups on mRNA function.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Singer, B. Fraenkel-conrat, H.
Abstract	Treatment of RNA with dimethyl sulfate methylates only nitrogens, preferentially the 7 position of guanosine, whereas treatment with ethylnitrosourea ethylates mainly oxygens, preferentially the phosphodiester groups. Two plant viral mRNAs were modified with these two reagents at levels of 4-28 alkylations per molecule. The ability of alkylated RNAs to stimulate amino acid incorporation in the wheat germ system was somewhat diminished by both types of modification, but the predominant protein made, as ascertained by polyacrylamide gel electrophoresis, was the typical gene product of the respective mRNA. These data suggest that random alkylations, mostly of either the guanosine N-7s or the phosphates, do not interfere with peptide chain elongation, but that the ability to initiate translation properly is affected by these substitutions, presumably through their effect on the conformation of the RNAs.
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	4
Volume Number	77
Language	English
Publisher	National Academy of Sciences
Publisher Date	1980-07-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Alkylating Agents Pharmacology Protein Biosynthesis Drug Effects RNA, Messenger Metabolism Sulfuric Acid Esters Sulfuric Acids Alkylation Cell-Free System Ethylnitrosourea Mosaic Viruses Peptide Chain Initiation, Translational RNA, Viral Structure-Activity Relationship Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Multidisciplinary
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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