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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1969 Apr;62(4):1145–1150. doi: 10.1073/pnas.62.4.1145

TRANSFER RNA METHYLASES DURING MORPHOGENESIS IN THE CELLULAR SLIME MOLD*

David Pillinger 1,, Ernest Borek 1
PMCID: PMC223626  PMID: 4894689

Abstract

The enzymes that methylate tRNA were studied during the life cycle of the colonizing slime mold, Dictyostelium discoideum. Total and base specific tRNA methylase activities were determined in extracts from cells in morphogenetic synchrony. Eight hours after enforced aggregation, the total methylase capacity is reduced by about 40 per cent. The diminution appears to be due to the presence of inhibitors that do not inhibit the base specific enzymes to the same extent. There is a still greater diminution in enzyme activity in extracts of the mature fruiting bodies.

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Selected References

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

  1. Boezi J. A., Armstrong R. L., De Backer M. Methylation of RNA in bacteriophage T4 infected Escherichia coli. Biochem Biophys Res Commun. 1967 Nov 17;29(3):281–287. doi: 10.1016/0006-291x(67)90449-4. [DOI] [PubMed] [Google Scholar]
  2. Grado C., Friedlender B., Ihl M., Contreras G. Incorporation of methyl groups by viral and cellular RNA of HEp 2 cells after poliovirus infection. Virology. 1968 Jul;35(3):339–346. doi: 10.1016/0042-6822(68)90212-2. [DOI] [PubMed] [Google Scholar]
  3. HALL R. H. A GENERAL PROCEDURE FOR THE ISOLATION OF "MINOR" NUCLEOSIDES FROM RIBONUCLEIC ACID HYDROLYSATES. Biochemistry. 1965 Apr;4:661–670. doi: 10.1021/bi00880a008. [DOI] [PubMed] [Google Scholar]
  4. HURWITZ J., GOLD M., ANDERS M. THE ENZYMATIC METHYLATION OF RIBONUCLEIC ACID AND DEOXYRIBONUCLEIC ACID. 3. PURIFICATION OF SOLUBLE RIBONUCLEIC ACID-METHYLATING ENZYMES. J Biol Chem. 1964 Oct;239:3462–3473. [PubMed] [Google Scholar]
  5. Hancock R. L. Kethyl activation and sRNA methylation by soluble fractions of several vertebrate livers. Can J Biochem. 1967 Oct;45(10):1513–1522. doi: 10.1139/o67-182. [DOI] [PubMed] [Google Scholar]
  6. Kaye A. M., Leboy P. S. Methylation of RNA by mouse organs and tumors: ionic stimulation in vitro. Biochim Biophys Acta. 1968 Apr 22;157(2):289–302. doi: 10.1016/0005-2787(68)90083-x. [DOI] [PubMed] [Google Scholar]
  7. PETERKOFSKY A. A ROLE FOR METHYLATED BASES IN THE AMINO ACID ACCEPTOR FUNCTION OF SOLUBLE RIBONUCLEIC ACID. Proc Natl Acad Sci U S A. 1964 Nov;52:1233–1238. doi: 10.1073/pnas.52.5.1233. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Phillips J. H., Kjellin-Stråby K. Studies on microbial ribonucleic acid. IV. Two mutants of Saccharomyces cerevisiae lacking N-2-dimethylguanine in soluble ribonucleic acid. J Mol Biol. 1967 Jun 28;26(3):509–518. doi: 10.1016/0022-2836(67)90318-x. [DOI] [PubMed] [Google Scholar]
  9. Rodeh R., Feldman M., Littauer U. Z. Properties of soluble ribonucleic acid methylases from rat liver. Biochemistry. 1967 Feb;6(2):451–460. doi: 10.1021/bi00854a013. [DOI] [PubMed] [Google Scholar]
  10. Shugart L., Chastain B. H., Novelli G. D., Stulberg M. P. Restoration of aminoacylation activity of undermethylated transfer RNA by in vitro methylation. Biochem Biophys Res Commun. 1968 May 10;31(3):404–409. doi: 10.1016/0006-291x(68)90490-7. [DOI] [PubMed] [Google Scholar]
  11. Svensson I. Studies on methionyl-tRNA synthetase. 3. Enzyme dependence for maximum methionyl-tRNA formation. Biochim Biophys Acta. 1968 Aug 27;167(1):179–183. doi: 10.1016/0005-2744(68)90288-x. [DOI] [PubMed] [Google Scholar]
  12. Vande Woude G. F., Arlinghaus R. B., Polatnick J. Inhibition of ribonucleic acid methylation in the foot-and-mouth disease virus-infected host cell. Biochem Biophys Res Commun. 1967 Nov 30;29(4):483–489. doi: 10.1016/0006-291x(67)90509-8. [DOI] [PubMed] [Google Scholar]
  13. Viale G. L., Fondelli Restelli A., Viale E. Basi metilate nei t-RNA dei tumori cerebrali. Tumori. 1967 Nov-Dec;53(6):533–539. doi: 10.1177/030089166705300603. [DOI] [PubMed] [Google Scholar]
  14. Wainfan E., Srinivasan P. R., Borek E. Inhibition of tRNA methylases in lysogenic organisms after induction by ultraviolet irradiation or by heat. J Mol Biol. 1966 Dec 28;22(2):349–353. doi: 10.1016/0022-2836(66)90137-9. [DOI] [PubMed] [Google Scholar]

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