Chemistry and biology of the copper chelator methanobactin

Grace E. Kenney, Amy C. Rosenzweig*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

53 Scopus citations

Abstract

Methanotrophic bacteria, organisms that oxidize methane, produce a small copper chelating molecule called methanobactin (Mb). Mb binds Cu(I) with high affinity and is hypothesized to mediate copper acquisition from the environment. Recent advances in Mb characterization include revision of the chemical structure of Mb from Methylosinus trichosporium OB3b and further investigation of its biophysical properties. In addition, Mb production by several other methanotroph strains has been investigated, and preliminary characterization suggests diversity in chemical composition. Initial clues into Mb biosynthesis have been obtained by identification of a putative precursor gene in the M. trichosporium OB3b genome. Finally, direct uptake of intact Mb into the cytoplasm of M. trichosporium OB3b cells has been demonstrated, and studies of the transport mechanism have been initiated. Taken together, these advances represent significant progress and set the stage for exciting new research directions.

Original languageEnglish (US)
Pages (from-to)260-268
Number of pages9
JournalACS chemical biology
Volume7
Issue number2
DOIs
StatePublished - Feb 17 2012

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine

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