6g1z

Crystal structure of a fluorescence optimized bathy phytochrome PAiRFP2 derived from wild-type Agp2 in its Pfr state.

spinqualitylabelsall models 6g1z, resolution 2.03Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6g1z is a 2 chain structure with sequence from Agrobacterium fabrum str. C58. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.03Å Ligands: EL5, ETE, GOL, PEG, PG0, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A9CI81_AGRFC Publication Abstract from PubMed Phytochromes are modular photoreceptors of plants, bacteria and fungi that use light as a source of information to regulate fundamental physiological processes. Interconversion between the active and inactive states is accomplished by a photoinduced reaction sequence which couples the sensor with the output module. However, the underlying molecular mechanism is yet not fully understood due to the lack of structural data of functionally relevant intermediate states. Here we report the crystal structure of a Meta-F intermediate state of an Agp2 variant from Agrobacterium fabrum. This intermediate, the identity of which was verified by resonance Raman spectroscopy, was formed by irradiation of the parent Pfr state and displays significant reorientations of almost all amino acids surrounding the chromophore. Structural comparisons allow identifying structural motifs that might serve as conformational switch for initiating the functional secondary structure change that is linked to the (de-)activation of these photoreceptors. Structural snapshot of a bacterial phytochrome in its functional intermediate state.,Schmidt A, Sauthof L, Szczepek M, Lopez MF, Escobar FV, Qureshi BM, Michael N, Buhrke D, Stevens T, Kwiatkowski D, von Stetten D, Mroginski MA, Krauss N, Lamparter T, Hildebrandt P, Scheerer P Nat Commun. 2018 Nov 21;9(1):4912. doi: 10.1038/s41467-018-07392-7. PMID:30464203 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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