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Signal amplification and transduction in phytochrome photosensors

Author

Listed:
  • Heikki Takala

    (Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
    University of Gothenburg, 40530 Gothenburg, Sweden)

  • Alexander Björling

    (University of Gothenburg, 40530 Gothenburg, Sweden)

  • Oskar Berntsson

    (University of Gothenburg, 40530 Gothenburg, Sweden)

  • Heli Lehtivuori

    (Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland)

  • Stephan Niebling

    (University of Gothenburg, 40530 Gothenburg, Sweden)

  • Maria Hoernke

    (University of Gothenburg, 40530 Gothenburg, Sweden)

  • Irina Kosheleva

    (Center for Advanced Radiation Sources, The University of Chicago)

  • Robert Henning

    (Center for Advanced Radiation Sources, The University of Chicago)

  • Andreas Menzel

    (Paul Scherrer Institut, 5232 Villigen PSI, Switzerland)

  • Janne A. Ihalainen

    (Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland)

  • Sebastian Westenhoff

    (University of Gothenburg, 40530 Gothenburg, Sweden)

Abstract

The solution and crystal structures of a bacterial phytochrome photosensory core in both its resting and activated states are determined; switching between closed (resting) and open (activated) forms is found to be mediated by a conserved ‘tongue’, and the structures indicate that smaller changes in the vicinity of the chromophore are amplified in scale as they are transmitted through the tongue and beyond.

Suggested Citation

  • Heikki Takala & Alexander Björling & Oskar Berntsson & Heli Lehtivuori & Stephan Niebling & Maria Hoernke & Irina Kosheleva & Robert Henning & Andreas Menzel & Janne A. Ihalainen & Sebastian Westenhof, 2014. "Signal amplification and transduction in phytochrome photosensors," Nature, Nature, vol. 509(7499), pages 245-248, May.
  • Handle: RePEc:nat:nature:v:509:y:2014:i:7499:d:10.1038_nature13310
    DOI: 10.1038/nature13310
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