6qsa

Cryogenic temperature structure of blue light-irradiated AtPhot2LOV2 recorded after an accumulated dose of 48 kGy

spinqualitylabelsall models 6qsa, resolution 1.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6qsa is a 1 chain structure with sequence from Arabidopsis thaliana. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.7Å Ligands: FMN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PHOT2_ARATH Protein kinase that acts as a blue light photoreceptor in a signal-transduction pathway for photo-induced movements. Mediates calcium spiking of extra- and intracellular origins in response to blue light. Involved in hypocotyl phototropism. Contributes to the chloroplast accumulation in low blue light and mediates their translocation (avoidance response) at high fluence. Regulates stomata opening and photomorphogenesis response of leaf tissue. Not involved in hypocotyl elongation inhibition, anthocyanin accumulation or cotyledon opening. Publication Abstract from PubMed Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-called specific radiation damage that affects certain amino-acid residues and, in particular, the active sites of many proteins. Here, a series of MX experiments are described which suggest that specific and global radiation damage are much less decoupled at room temperature than they are at cryogenic temperatures. The results reported here demonstrate the interest in reviving the practice of collecting MX diffraction data at room temperature and allow structural biologists to favourably envisage the development of time-resolved MX experiments at synchrotron sources. Specific radiation damage is a lesser concern at room temperature.,Gotthard G, Aumonier S, De Sanctis D, Leonard G, von Stetten D, Royant A IUCrJ. 2019 Jun 12;6(Pt 4):665-680. doi: 10.1107/S205225251900616X. eCollection, 2019 Jul 1. PMID:31316810 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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