Atypical OmpR/PhoB subfamily response regulator glnr of actinomycetes functions as a homodimer, stabilized by the unphosphorylated conserved Asp-focused charge interactions

  • Wei Lin
  • , Ying Wang
  • , Xiaobiao Han
  • , Zilong Zhang
  • , Chengyuan Wang
  • , Jin Wang
  • , Huaiyu Yang
  • , Yinhua Lu
  • , Weihong Jiang
  • , Guo Ping Zhao
  • , Peng Zhang*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Background: Orphan response transcription factor GlnR regulates nitrogen metabolism in important actinomycetes. Results: GlnR has no typical "phosphorylation pocket," where the only conserved Asp is unphosphorylated but is essential for functional homodimerization. Conclusion: Actinomycete GlnR is an atypical response regulator functioning as a homodimer. Significance: Conserved Asp-focused charge interactions of actinomycete GlnR are probably the mechanism that stabilizes the homodimer for physiological function.

Original languageEnglish
Pages (from-to)15413-15425
Number of pages13
JournalJournal of Biological Chemistry
Volume289
Issue number22
DOIs
StatePublished - 30 May 2014
Externally publishedYes

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