Literature DB >> 3139057

Misaminoacylation and transamidation are required for protein biosynthesis in Lactobacillus bulgaricus.

A Schön1, H Hottinger, D Söll.   

Abstract

Aminoacylation studies with Lactobacillus bulgaricus show that this organism possesses glutamyl-tRNA synthetase activity; however, glutamyl-tRNA synthetase activity cannot be demonstrated. Instead, Glu-tRNAGln, which is formed by glutamyl-tRNA synthetase, is amidated by a specific amidotransferase to Gln-tRNAGln. The amide donor in this reaction is glutamine. Thus, Gln-tRNAGln in this organism is not formed by direct glutaminylation of tRNAGln, but instead by a pathway which involves misaminoacylation and transamidation.

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Year:  1988        PMID: 3139057     DOI: 10.1016/0300-9084(88)90212-x

Source DB:  PubMed          Journal:  Biochimie        ISSN: 0300-9084            Impact factor:   4.079


  6 in total

Review 1.  Archaeal aminoacyl-tRNA synthesis: diversity replaces dogma.

Authors:  D Tumbula; U C Vothknecht; H S Kim; M Ibba; B Min; T Li; J Pelaschier; C Stathopoulos; H Becker; D Söll
Journal:  Genetics       Date:  1999-08       Impact factor: 4.562

2.  Leishmania tarentolae contains distinct cytosolic and mitochondrial glutaminyl-tRNA synthetase activities.

Authors:  C E Nabholz; R Hauser; A Schneider
Journal:  Proc Natl Acad Sci U S A       Date:  1997-07-22       Impact factor: 11.205

3.  Glu-tRNAGln amidotransferase: a novel heterotrimeric enzyme required for correct decoding of glutamine codons during translation.

Authors:  A W Curnow; K w Hong; R Yuan; S i Kim; O Martins; W Winkler; T M Henkin; D Söll
Journal:  Proc Natl Acad Sci U S A       Date:  1997-10-28       Impact factor: 11.205

Review 4.  Bacterial transfer RNAs.

Authors:  Jennifer Shepherd; Michael Ibba
Journal:  FEMS Microbiol Rev       Date:  2015-03-21       Impact factor: 16.408

5.  Characterization of Gtf1p, the connector subunit of yeast mitochondrial tRNA-dependent amidotransferase.

Authors:  Mario H Barros; Malgorzata Rak; Janaina A Paulela; Alexander Tzagoloff
Journal:  J Biol Chem       Date:  2011-07-28       Impact factor: 5.157

6.  Asn-tRNA in Lactobacillus bulgaricus is formed by asparaginylation of tRNA and not by transamidation of Asp-tRNA.

Authors:  S I Kim; M Nalaskowska; J E Germond; D Pridmore; D Söll
Journal:  Nucleic Acids Res       Date:  1996-07-15       Impact factor: 16.971

  6 in total

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