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The Saccharomyces cerevisiae TAN1 gene is required for N4-acetylcytidine formation in tRNA

Johansson, Marcus J O LU and Byström, Anders S (2004) In RNA 10(4). p.9-712
Abstract

The biogenesis of transfer RNA is a process that requires many different factors. In this study, we describe a genetic screen aimed to identify gene products participating in this process. By screening for mutations lethal in combination with a sup61-T47:2C allele, coding for a mutant form of, the nonessential TAN1 gene was identified. We show that the TAN1 gene product is required for formation of the modified nucleoside N(4)-acetylcytidine (ac(4)C) in tRNA. In Saccharomyces cerevisiae, ac(4)C is present at position 12 in tRNAs specific for leucine and serine as well as in 18S ribosomal RNA. Analysis of RNA isolated from a tan1-null mutant revealed that ac(4)C was absent in tRNA, but not rRNA. Although no tRNA acetyltransferase... (More)

The biogenesis of transfer RNA is a process that requires many different factors. In this study, we describe a genetic screen aimed to identify gene products participating in this process. By screening for mutations lethal in combination with a sup61-T47:2C allele, coding for a mutant form of, the nonessential TAN1 gene was identified. We show that the TAN1 gene product is required for formation of the modified nucleoside N(4)-acetylcytidine (ac(4)C) in tRNA. In Saccharomyces cerevisiae, ac(4)C is present at position 12 in tRNAs specific for leucine and serine as well as in 18S ribosomal RNA. Analysis of RNA isolated from a tan1-null mutant revealed that ac(4)C was absent in tRNA, but not rRNA. Although no tRNA acetyltransferase activity by a GST-Tan1 fusion protein was detected, a gel-shift assay revealed that Tan1p binds tRNA, suggesting a direct role in synthesis of ac(4)C(12). The absence of the TAN1 gene in the sup61-T47:2C mutant caused a decreased level of mature, indicating that ac(4)C(12) and/or Tan1p is important for tRNA stability.

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author
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type
Contribution to journal
publication status
published
keywords
Chromatography, High Pressure Liquid, Cytidine/analogs & derivatives, Mutation, RNA Processing, Post-Transcriptional/physiology, RNA, Transfer, Ser/metabolism, Receptor, Notch1, Receptors, Cell Surface/genetics, Saccharomyces cerevisiae/genetics, Spectrophotometry, Ultraviolet, Transcription Factors
in
RNA
volume
10
issue
4
pages
9 - 712
publisher
Cold Spring Harbor Laboratory Press (CSHL)
external identifiers
  • scopus:1642488233
  • pmid:15037780
ISSN
1355-8382
DOI
10.1261/rna.5198204
language
English
LU publication?
no
id
3021b123-5f77-4b3d-a11a-51e84eb83439
date added to LUP
2024-03-05 17:02:46
date last changed
2024-04-04 04:23:21
@article{3021b123-5f77-4b3d-a11a-51e84eb83439,
  abstract     = {{<p>The biogenesis of transfer RNA is a process that requires many different factors. In this study, we describe a genetic screen aimed to identify gene products participating in this process. By screening for mutations lethal in combination with a sup61-T47:2C allele, coding for a mutant form of, the nonessential TAN1 gene was identified. We show that the TAN1 gene product is required for formation of the modified nucleoside N(4)-acetylcytidine (ac(4)C) in tRNA. In Saccharomyces cerevisiae, ac(4)C is present at position 12 in tRNAs specific for leucine and serine as well as in 18S ribosomal RNA. Analysis of RNA isolated from a tan1-null mutant revealed that ac(4)C was absent in tRNA, but not rRNA. Although no tRNA acetyltransferase activity by a GST-Tan1 fusion protein was detected, a gel-shift assay revealed that Tan1p binds tRNA, suggesting a direct role in synthesis of ac(4)C(12). The absence of the TAN1 gene in the sup61-T47:2C mutant caused a decreased level of mature, indicating that ac(4)C(12) and/or Tan1p is important for tRNA stability.</p>}},
  author       = {{Johansson, Marcus J O and Byström, Anders S}},
  issn         = {{1355-8382}},
  keywords     = {{Chromatography, High Pressure Liquid; Cytidine/analogs & derivatives; Mutation; RNA Processing, Post-Transcriptional/physiology; RNA, Transfer, Ser/metabolism; Receptor, Notch1; Receptors, Cell Surface/genetics; Saccharomyces cerevisiae/genetics; Spectrophotometry, Ultraviolet; Transcription Factors}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{9--712}},
  publisher    = {{Cold Spring Harbor Laboratory Press (CSHL)}},
  series       = {{RNA}},
  title        = {{The Saccharomyces cerevisiae TAN1 gene is required for N4-acetylcytidine formation in tRNA}},
  url          = {{http://dx.doi.org/10.1261/rna.5198204}},
  doi          = {{10.1261/rna.5198204}},
  volume       = {{10}},
  year         = {{2004}},
}