Cu(I) recognition via cation-π and methionine interactions in CusF

Yi Xue, Anna V. Davis, Gurusamy Balakrishnan, Jay P. Stasser, Benjamin M. Staehlin, Pamela Focia, Thomas G. Spiro, James E. Penner-Hahn, Thomas V. O'Halloran*

*Corresponding author for this work

Research output: Contribution to journalArticle

165 Scopus citations

Abstract

Methionine-rich motifs have an important role in copper trafficking factors, including the CusF protein. Here we show that CusF uses a new metal recognition site wherein Cu(I) is tetragonally displaced from a Met 2His ligand plane toward a conserved tryptophan. Spectroscopic studies demonstrate that both thioether ligation and strong cation-π interactions with tryptophan stabilize metal binding. This novel active site chemistry affords mechanisms for control of adventitious metal redox and substitution chemistry.

Original languageEnglish (US)
Pages (from-to)107-109
Number of pages3
JournalNature Chemical Biology
Volume4
Issue number2
DOIs
StatePublished - Feb 2008

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

Fingerprint Dive into the research topics of 'Cu(I) recognition via cation-π and methionine interactions in CusF'. Together they form a unique fingerprint.

  • Cite this

    Xue, Y., Davis, A. V., Balakrishnan, G., Stasser, J. P., Staehlin, B. M., Focia, P., Spiro, T. G., Penner-Hahn, J. E., & O'Halloran, T. V. (2008). Cu(I) recognition via cation-π and methionine interactions in CusF. Nature Chemical Biology, 4(2), 107-109. https://doi.org/10.1038/nchembio.2007.57