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Identification and characterization of a novel evolutionarily conserved lysine-specific methyltransferase targeting eukaryotic translation elongation factor 2 (eEF2)

Davydova, Erna ; Ho, Angela Y Y ; Malecki, Jedrzej ; Moen, Anders ; Enserink, Jorrit M ; Jakobsson, Magnus E LU ; Loenarz, Christoph and Falnes, Pål Ø (2014) In Journal of Biological Chemistry 289(44). p.510-30499
Abstract

The components of the cellular protein translation machinery, such as ribosomal proteins and translation factors, are subject to numerous post-translational modifications. In particular, this group of proteins is frequently methylated. However, for the majority of these methylations, the responsible methyltransferases (MTases) remain unknown. The human FAM86A (family with sequence similarity 86) protein belongs to a recently identified family of protein MTases, and we here show that FAM86A catalyzes the trimethylation of eukaryotic elongation factor 2 (eEF2) on Lys-525. Moreover, we demonstrate that the Saccharomyces cerevisiae MTase Yjr129c, which displays sequence homology to FAM86A, is a functional FAM86A orthologue, modifying the... (More)

The components of the cellular protein translation machinery, such as ribosomal proteins and translation factors, are subject to numerous post-translational modifications. In particular, this group of proteins is frequently methylated. However, for the majority of these methylations, the responsible methyltransferases (MTases) remain unknown. The human FAM86A (family with sequence similarity 86) protein belongs to a recently identified family of protein MTases, and we here show that FAM86A catalyzes the trimethylation of eukaryotic elongation factor 2 (eEF2) on Lys-525. Moreover, we demonstrate that the Saccharomyces cerevisiae MTase Yjr129c, which displays sequence homology to FAM86A, is a functional FAM86A orthologue, modifying the corresponding residue (Lys-509) in yeast eEF2, both in vitro and in vivo. Finally, Yjr129c-deficient yeast cells displayed phenotypes related to eEF2 function (i.e. increased frameshifting during protein translation and hypersensitivity toward the eEF2-specific drug sordarin). In summary, the present study establishes the function of the previously uncharacterized MTases FAM86A and Yjr129c, demonstrating that these enzymes introduce a functionally important lysine methylation in eEF2. Based on the previous naming of similar enzymes, we have redubbed FAM86A and Yjr129c as eEF2-KMT and Efm3, respectively.

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publication status
published
subject
keywords
Amino Acid Sequence, Animals, Conserved Sequence, HEK293 Cells, Humans, Methylation, Methyltransferases/genetics, Molecular Sequence Data, Peptide Elongation Factor 2/metabolism, Protein Methyltransferases/physiology, Protein Processing, Post-Translational, Rabbits, Saccharomyces cerevisiae/enzymology, Saccharomyces cerevisiae Proteins/genetics
in
Journal of Biological Chemistry
volume
289
issue
44
pages
12 pages
publisher
ASBMB
external identifiers
  • scopus:84910090389
  • pmid:25231979
ISSN
1083-351X
DOI
10.1074/jbc.M114.601658
language
English
LU publication?
no
additional info
© 2014 by The American Society for Biochemistry and Molecular Biology, Inc.
id
ff7a493f-2b40-494e-a5d8-fa8092b9bfbe
date added to LUP
2020-01-13 08:56:07
date last changed
2020-09-09 05:55:21
@article{ff7a493f-2b40-494e-a5d8-fa8092b9bfbe,
  abstract     = {<p>The components of the cellular protein translation machinery, such as ribosomal proteins and translation factors, are subject to numerous post-translational modifications. In particular, this group of proteins is frequently methylated. However, for the majority of these methylations, the responsible methyltransferases (MTases) remain unknown. The human FAM86A (family with sequence similarity 86) protein belongs to a recently identified family of protein MTases, and we here show that FAM86A catalyzes the trimethylation of eukaryotic elongation factor 2 (eEF2) on Lys-525. Moreover, we demonstrate that the Saccharomyces cerevisiae MTase Yjr129c, which displays sequence homology to FAM86A, is a functional FAM86A orthologue, modifying the corresponding residue (Lys-509) in yeast eEF2, both in vitro and in vivo. Finally, Yjr129c-deficient yeast cells displayed phenotypes related to eEF2 function (i.e. increased frameshifting during protein translation and hypersensitivity toward the eEF2-specific drug sordarin). In summary, the present study establishes the function of the previously uncharacterized MTases FAM86A and Yjr129c, demonstrating that these enzymes introduce a functionally important lysine methylation in eEF2. Based on the previous naming of similar enzymes, we have redubbed FAM86A and Yjr129c as eEF2-KMT and Efm3, respectively. </p>},
  author       = {Davydova, Erna and Ho, Angela Y Y and Malecki, Jedrzej and Moen, Anders and Enserink, Jorrit M and Jakobsson, Magnus E and Loenarz, Christoph and Falnes, Pål Ø},
  issn         = {1083-351X},
  language     = {eng},
  month        = {10},
  number       = {44},
  pages        = {510--30499},
  publisher    = {ASBMB},
  series       = {Journal of Biological Chemistry},
  title        = {Identification and characterization of a novel evolutionarily conserved lysine-specific methyltransferase targeting eukaryotic translation elongation factor 2 (eEF2)},
  url          = {http://dx.doi.org/10.1074/jbc.M114.601658},
  doi          = {10.1074/jbc.M114.601658},
  volume       = {289},
  year         = {2014},
}