9d10
From Proteopedia
Photoactive Yellow Protein, crystals from PEG, room temperature
Structural highlights
FunctionPYP_HALHA Photoactive blue light protein. Probably functions as a photoreceptor for a negative phototaxis response. Publication Abstract from PubMedThe upgrade of the European Synchrotron Radiation Facility (ESRF) in Grenoble, France to an Extremely Brilliant Source (EBS) is expected to enable time-resolved synchrotron serial crystallography (SSX) experiments with sub-millisecond time resolution. ID29 is a new beamline dedicated to SSX experiments at ESRF-EBS. Here, we report experiments emerging from the initial phase of user operation at ID29. We first used microcrystals of photoactive yellow protein as a model system to exploit the potential of microsecond pulses for SSX. Subsequently, we investigated microcrystals of cytochrome c nitrite reductase (ccNiR) with microsecond X-ray pulses. CcNiR is a decaheme protein that is ideal for the investigation of radiation damage at the various heme-iron sites. Finally, we performed a proof-of-concept subsecond time-resolved SSX experiment by photoactivating microcrystals of a myxobacterial phytochrome. Exploiting fourth-generation synchrotron radiation for enzyme and photoreceptor characterization.,Malla TN, Muniyappan S, Menendez D, Ogukwe F, Dale AN, Clayton JD, Weatherall DD, Karki P, Dangi S, Mandella V, Pacheco AA, Stojkovic EA, Rose SL, Orlans J, Basu S, de Sanctis D, Schmidt M IUCrJ. 2025 Jan 1;12(Pt 1):36-48. doi: 10.1107/S2052252524010868. PMID:39575537[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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