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Proteome-scale identification and characterization of mitochondria targeting proteins of Mycobacterium avium

Aarti Rana1, Devender Kumar1, Abdur Rub2

  • 1School of Life Sciences, Central University of Himachal Pradesh, Shahpur, District-Kangra, 176206 Himachal Pradesh, India.

Mitochondrion
|June 7, 2015
PubMed

Insights

Mycobacterium avium subsp. paratuberculosis causes Johne's Disease in ruminants by targeting host mitochondria. Researchers identified 46 potential proteins that may help the bacteria survive and evade immune responses.

Area of Science:

  • Microbiology
  • Veterinary Science
  • Molecular Biology

Background:

  • Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of Johne's Disease in ruminants.
  • MAP infection leads to physiological abnormalities in the host.
  • Mitochondria are crucial cellular components and potential targets for pathogens.

Purpose of the Study:

  • To identify proteins expressed by MAP that target host mitochondria.
  • To understand the role of these proteins in bacterial virulence and host immune evasion.

Main Methods:

  • A proteome-wide analysis was conducted.
  • Sequence and structural signatures were used to predict mitochondrial targeting.
  • Bioinformatic approaches were employed to identify candidate proteins.

Main Results:

  • 46 MAP proteins were identified as potential mitochondrial targeting factors.
  • These proteins may contribute to bacterial persistence within host cells.
  • The identified proteins could be virulence factors modulating mitochondrial function.

Conclusions:

  • MAP utilizes specific proteins to target host mitochondria for survival and immune evasion.
  • These identified proteins represent potential targets for therapeutic interventions against Johne's Disease.
Keywords:
ExotoxinsMitochondria targetingMycobacterium avium subsp. paratuberculosisPathogenicity factorsVaccineVirulence

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