Knockout of UBP34 in Physcomitrella patens reveals the photoaffinity labeling of another closely related IPR protein

  • Florent Brun
  • , Didier G. Schaefer
  • , Michel Laloue
  • , Martine Gonneau

Research output: Contribution to journalArticlepeer-review

Abstract

UBP34, a soluble 34 kDa protein identified in the moss Physcomitrella patens by photoaffinity labeling with an urea-type cytokinin agonist, belonging to the plant intracellular pathogenesis related (IPR) protein family. This class of proteins is ubiquitous in the plant kingdom but their functions are still unknown. Using a reverse genetic approach we generated knockout mutants at the UBP34 locus by homologous recombination. Knockout plants grown in various conditions do not present any visible phenotypic alteration. However, biochemical and molecular analysis of the knockout transformants reveal the specific photoaffinity labeling of another similar protein.

Original languageEnglish
Pages (from-to)471-479
Number of pages9
JournalPlant Science
Volume167
Issue number3
DOIs
Publication statusPublished - 1 Sept 2004
Externally publishedYes

Keywords

  • 1-(2-chloropyrid-4-yl)-3-phenylurea
  • Allergen
  • BA
  • benzyladenine
  • CPPU
  • Gene disruption
  • intracellular pathogenesis related
  • Intracellular PR proteins
  • IP
  • IPR
  • isopentenyladenine
  • Physcomitrella patens

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