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  1. No Access

    Article

    Tryptophan fluorescence as a reporter for structural changes in photoactive yellow protein elicited by photo-activation

    Light-activation of photoactive yellow protein (PYP) is followed by a series of dynamical transitions in the structure of the protein. Tryptophan fluorescence is well-suited as a tool to study selected aspects...

    Marijke Hospes, Johnny Hendriks… in Photochemical & Photobiological Sciences (2013)

  2. No Access

    Article

    Is the photoactive yellow protein a UV-B/blue light photoreceptor?

    UV light below 300 nm is shown to generate the first photocycle intermediate in the blue light photoreceptor Photoactive Yellow Protein. Fluorescence and ultrafast transient absorption measurements indicate tw...

    Elizabeth C. Carroll, Marijke Hospes… in Photochemical & Photobiological Sciences (2011)

  3. No Access

    Article

    Binding, tuning and mechanical function of the 4-hydroxy-cinnamic acid chromophore in photoactive yellow protein

    The bacterial photoreceptor protein photoactive yellow protein (PYP) covalently binds the chromophore 4-hydroxy coumaric acid, tuning (spectral) characteristics of this cofactor. Here, we study this binding an...

    Michael A. van der Horst, Jos C. Arents… in Photochemical & Photobiological Sciences (2007)

  4. No Access

    Article

    Chromophore composition of a heterologously expressed BLUF-domain

    Upon heterologous expression of the BLUF (for: Blue-Light sensing Using Flavin) domain from AppA, a transcriptional anti-repressor from Rhodobacter sphaeroides, in Escherichia coli, photoactive holo-protein is fo...

    Wouter Laan, Teresa Bednarz, Joachim Heberle… in Photochemical & Photobiological Sciences (2004)

  5. No Access

    Article

    Early molecular events in the photoactive yellow protein: role of the chromophore photophysics

    We report a comparative study of the isomerization reaction in native and denatured photoactive yellow protein (PYP) and in various chromophore analogues in their trans deprotonated form. The excited-state relaxa...

    Pascale Changenet-Barret, Agathe Espagne… in Photochemical & Photobiological Sciences (2004)

  6. No Access

    Article

    Tryptophan fluorescence monitors structural changes accompanying signalling state formation in the photocycle of photoactive yellow protein

    Photoactive yellow protein, a small, water-soluble blue-light absorbing photoreceptor protein from Ectothiorhodospira (Halorhodospira) halophila has a structure with two hydrophobic cores, of which the main one h...

    Thomas Gensch, Johnny Hendriks… in Photochemical & Photobiological Sciences (2004)