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Systematic analysis of mycobacterial acylation reveals first example of acylation-mediated regulation of enzyme activity of a bacterial phosphatase

Singhal, Anshika ; Arora, Gunjan ; Virmani, Richa ; Kundu, Parijat ; Khanna, Tanya ; Sajid, Andaleeb ; Misra, Richa ; Joshi, Jayadev ; Yadav, Vikas LU and Samanta, Sintu , et al. (2015) In Journal of Biological Chemistry 290(43). p.26218-26234
Abstract

Protein lysine acetylation is known to regulate multiple aspects of bacterial metabolism. However, its presence in mycobacterial signal transduction and virulence-associated proteins has not been studied. In this study, analysis of mycobacterial proteins from different cellular fractions indicated dynamic and widespread occurrence of lysine acetylation. Mycobacterium tuberculosis proteins regulating diverse physiological processes were then selected and expressed in the surrogate host Mycobacterium smegmatis. The purified proteins were analyzed for the presence of lysine acetylation, leading to the identification of 24 acetylated proteins. In addition, novel lysine succinylation and propionylation events were found to co-occur with... (More)

Protein lysine acetylation is known to regulate multiple aspects of bacterial metabolism. However, its presence in mycobacterial signal transduction and virulence-associated proteins has not been studied. In this study, analysis of mycobacterial proteins from different cellular fractions indicated dynamic and widespread occurrence of lysine acetylation. Mycobacterium tuberculosis proteins regulating diverse physiological processes were then selected and expressed in the surrogate host Mycobacterium smegmatis. The purified proteins were analyzed for the presence of lysine acetylation, leading to the identification of 24 acetylated proteins. In addition, novel lysine succinylation and propionylation events were found to co-occur with acetylation on several proteins. Protein-tyrosine phosphatase B (PtpB), a secretory phosphatase that regulates phosphorylation of host proteins and plays a critical role in Mycobacterium infection, is modified by acetylation and succinylation at Lys-224. This residue is situated in a lid region that covers the enzyme's active site. Consequently, acetylation and succinylation negatively regulate the activity of PtpB.

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publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Biological Chemistry
volume
290
issue
43
pages
26218 - 26234
publisher
American Society for Biochemistry and Molecular Biology
external identifiers
  • pmid:26350458
  • scopus:84944910025
ISSN
0021-9258
DOI
10.1074/jbc.M115.687269
language
English
LU publication?
no
additional info
Publisher Copyright: © 2015 by The American Society for Biochemistry and Molecular Biology, Inc. Published in the U.S.A.
id
ed5ffd5c-943a-4463-869c-0cfc55611bf7
date added to LUP
2021-12-01 11:35:28
date last changed
2024-02-20 18:24:06
@article{ed5ffd5c-943a-4463-869c-0cfc55611bf7,
  abstract     = {{<p>Protein lysine acetylation is known to regulate multiple aspects of bacterial metabolism. However, its presence in mycobacterial signal transduction and virulence-associated proteins has not been studied. In this study, analysis of mycobacterial proteins from different cellular fractions indicated dynamic and widespread occurrence of lysine acetylation. Mycobacterium tuberculosis proteins regulating diverse physiological processes were then selected and expressed in the surrogate host Mycobacterium smegmatis. The purified proteins were analyzed for the presence of lysine acetylation, leading to the identification of 24 acetylated proteins. In addition, novel lysine succinylation and propionylation events were found to co-occur with acetylation on several proteins. Protein-tyrosine phosphatase B (PtpB), a secretory phosphatase that regulates phosphorylation of host proteins and plays a critical role in Mycobacterium infection, is modified by acetylation and succinylation at Lys-224. This residue is situated in a lid region that covers the enzyme's active site. Consequently, acetylation and succinylation negatively regulate the activity of PtpB.</p>}},
  author       = {{Singhal, Anshika and Arora, Gunjan and Virmani, Richa and Kundu, Parijat and Khanna, Tanya and Sajid, Andaleeb and Misra, Richa and Joshi, Jayadev and Yadav, Vikas and Samanta, Sintu and Saini, Neeru and Pandey, Amit K. and Visweswariah, Sandhya S. and Hentschker, Christian and Becher, Dörte and Gerth, Ulf and Singh, Yogendra}},
  issn         = {{0021-9258}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{43}},
  pages        = {{26218--26234}},
  publisher    = {{American Society for Biochemistry and Molecular Biology}},
  series       = {{Journal of Biological Chemistry}},
  title        = {{Systematic analysis of mycobacterial acylation reveals first example of acylation-mediated regulation of enzyme activity of a bacterial phosphatase}},
  url          = {{http://dx.doi.org/10.1074/jbc.M115.687269}},
  doi          = {{10.1074/jbc.M115.687269}},
  volume       = {{290}},
  year         = {{2015}},
}