5PWN

PanDDA analysis group deposition -- Crystal Structure of SP100 after initial refinement with no ligand modelled (structure 10)

5PWN の概要

• エントリーDOI: 10.2210/pdb5pwn/pdb
• Group deposition: PanDDA analysis group deposition of models of ground state datasets (G_1002025)
• 分子名称: Nuclear autoantigen Sp-100, ZINC ION, 2-(N-MORPHOLINO)-ETHANESULFONIC ACID, ... (5 entities in total)
• 機能のキーワード: pandda, sgc - diamond i04-1 fragment screening, bromodomain, epigenetics, xchemexplorer, transcription
• 由来する生物種: Homo sapiens (Human)
• 細胞内の位置: Nucleus. Isoform Sp100-C: Nucleus : P23497
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 43643.55

構造登録者

Pearce, N.M.,Krojer, T.,Talon, R.,Bradley, A.R.,Fairhead, M.,Sethi, R.,Wright, N.,MacLean, E.,Collins, P.,Brandao-Neto, J.,Douangamath, A.,Renjie, Z.,Dias, A.,Ng, J.,Brennan, P.E.,Cox, O.,Bountra, C.,Arrowsmith, C.H.,Edwards, A.,von Delft, F. (登録日: 2017-02-08, 公開日: 2017-03-22, 最終更新日: 2024-03-06)

主引用文献

Pearce, N.M.,Krojer, T.,Bradley, A.R.,Collins, P.,Nowak, R.P.,Talon, R.,Marsden, B.D.,Kelm, S.,Shi, J.,Deane, C.M.,von Delft, F.
A multi-crystal method for extracting obscured crystallographic states from conventionally uninterpretable electron density.
Nat Commun, 8:15123-15123, 2017

PubMed Abstract: In macromolecular crystallography, the rigorous detection of changed states (for example, ligand binding) is difficult unless signal is strong. Ambiguous ('weak' or 'noisy') density is experimentally common, since molecular states are generally only fractionally present in the crystal. Existing methodologies focus on generating maximally accurate maps whereby minor states become discernible; in practice, such map interpretation is disappointingly subjective, time-consuming and methodologically unsound. Here we report the PanDDA method, which automatically reveals clear electron density for the changed state-even from inaccurate maps-by subtracting a proportion of the confounding 'ground state'; changed states are objectively identified from statistical analysis of density distributions. The method is completely general, implying new best practice for all changed-state studies, including the routine collection of multiple ground-state crystals. More generally, these results demonstrate: the incompleteness of atomic models; that single data sets contain insufficient information to model them fully; and that accuracy requires further map-deconvolution approaches.

PubMed: 28436492
DOI: 10.1038/ncomms15123

実験手法

X-RAY DIFFRACTION (1.64 Å)