6P5F

Photoactive Yellow Protein PYP Pure Dark

Summary for 6P5F

• Entry DOI: 10.2210/pdb6p5f/pdb
• Descriptor: Photoactive yellow protein (2 entities in total)
• Functional Keywords: pyp, 10ps, signaling protein
• Biological source: Halorhodospira halophila
• Total number of polymer chains: 1
• Total formula weight: 14034.72

Authors

Pandey, S.,Schmidt, M. (deposition date: 2019-05-30, release date: 2019-09-18, Last modification date: 2023-11-15)

Primary citation

Pandey, S.,Bean, R.,Sato, T.,Poudyal, I.,Bielecki, J.,Cruz Villarreal, J.,Yefanov, O.,Mariani, V.,White, T.A.,Kupitz, C.,Hunter, M.,Abdellatif, M.H.,Bajt, S.,Bondar, V.,Echelmeier, A.,Doppler, D.,Emons, M.,Frank, M.,Fromme, R.,Gevorkov, Y.,Giovanetti, G.,Jiang, M.,Kim, D.,Kim, Y.,Kirkwood, H.,Klimovskaia, A.,Knoska, J.,Koua, F.H.M.,Letrun, R.,Lisova, S.,Maia, L.,Mazalova, V.,Meza, D.,Michelat, T.,Ourmazd, A.,Palmer, G.,Ramilli, M.,Schubert, R.,Schwander, P.,Silenzi, A.,Sztuk-Dambietz, J.,Tolstikova, A.,Chapman, H.N.,Ros, A.,Barty, A.,Fromme, P.,Mancuso, A.P.,Schmidt, M.
Time-resolved serial femtosecond crystallography at the European XFEL.
Nat.Methods, 17:73-78, 2020

PubMed Abstract: The European XFEL (EuXFEL) is a 3.4-km long X-ray source, which produces femtosecond, ultrabrilliant and spatially coherent X-ray pulses at megahertz (MHz) repetition rates. This X-ray source has been designed to enable the observation of ultrafast processes with near-atomic spatial resolution. Time-resolved crystallographic investigations on biological macromolecules belong to an important class of experiments that explore fundamental and functional structural displacements in these molecules. Due to the unusual MHz X-ray pulse structure at the EuXFEL, these experiments are challenging. Here, we demonstrate how a biological reaction can be followed on ultrafast timescales at the EuXFEL. We investigate the picosecond time range in the photocycle of photoactive yellow protein (PYP) with MHz X-ray pulse rates. We show that difference electron density maps of excellent quality can be obtained. The results connect the previously explored femtosecond PYP dynamics to timescales accessible at synchrotrons. This opens the door to a wide range of time-resolved studies at the EuXFEL.

PubMed: 31740816
DOI: 10.1038/s41592-019-0628-z

Experimental method

X-RAY DIFFRACTION (1.7 Å)