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Cover illustration: Pictorial one-dimensional helical symmetry description of three helical structures determined by X-ray fibre diffraction (p. 716). The three depicted helical structures are the filamentous bacteriophage ph75 (PDB entry 1hgv), F-actin (PDB entry 2zwh) and the cucumber green mottle mosaic virus (PDB entry 1cgm). Individual asymmetric subunits are each represented by a color isosurface entity and each color represents a helix specified by the helical symmetry. |
 | Acta Cryst. (2011). D67, 671-677 [ doi:10.1107/S090744491101746X ] Structural and kinetic insights into the mechanism of 5-hydroxyisourate hydrolase from Klebsiella pneumoniaeJ. B. French and S. E. EalickSynopsis: The crystal structure of 5-hydroxyisourate hydrolase from K. pneumoniae and the steady-state kinetic parameters of the native enzyme as well as several mutants provide insights into the catalytic mechanism of this enzyme and the possible roles of the active-site residues. PDB reference: 3qva Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 678-689 [ doi:10.1107/S0907444911021834 ] Structure of 2-oxo-3-deoxygalactonate kinase from Klebsiella pneumoniaeK. Michalska, M. E. Cuff, C. Tesar, B. Feldmann and A. JoachimiakSynopsis: The crystal structure of 2-oxo-3-deoxygalactonate kinase from the De Ley-Doudoroff pathway of galactose metabolism has been determined at 2.1 Å resolution. PDB reference: 3r1x Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 690-698 [ doi:10.1107/S0907444911022463 ] Structural features of peroxisomal catalase from the yeast Hansenula polymorphaE. Peña-Soler, M. C. Vega, M. Wilmanns and C. WilliamsSynopsis: This study presents the crystal structure of catalase from the thermotolerant yeast H. polymorpha at 2.9 Å resolution. PDB reference: 2xq1 Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 699-706 [ doi:10.1107/S090744491102292X ] A conformation-dependent stereochemical library improves crystallographic refinement even at atomic resolutionD. E. Tronrud and P. A. KarplusSynopsis: A script was created to allow SHELXL to use the new CDL v.1.2 stereochemical library which defines the target values for main-chain bond lengths and angles as a function of the residue's Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 707-715 [ doi:10.1107/S0907444911023821 ] Structural and biochemical characterization of N5-carboxyaminoimidazole ribonucleotide synthetase and N5-carboxyaminoimidazole ribonucleotide mutase from Staphylococcus aureusP. Brugarolas, E. M. Duguid, W. Zhang, C. B. Poor and C. HeSynopsis: Purine biosynthesis is considered to be a promising new antibiotic target; in this article, the structural and biochemical characterization of S. aureus PurK and PurE are described. PDB references: 3orq, 3orr and 3ors Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 716-728 [ doi:10.1107/S0907444911024024 ] A unified convention for biological assemblies with helical symmetryC.-J. Tsai and R. NussinovSynopsis: A new representation of helical structure by four parameters, [n1, n2, twist, rise], is able to generate an entire helical construct from asymmetric units, including cases of helical assembly with a seam. Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 729-738 [ doi:10.1107/S0907444911024887 ] On the routine use of soft X-rays in macromolecular crystallography. Part V. Molecular replacement and anomalous scatteringJ. Unge, C. Mueller-Dieckmann, S. Panjikar, P. A. Tucker, V. S. Lamzin and M. S. WeissSynopsis: The performance of molecular-replacement approaches can be enhanced by utilizing anomalous differences and substructure information. Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 739-741 [ doi:10.1107/S090744491102258X ] On the application of structure-specific bulk-solvent modelsN. M. GlykosSynopsis: Application of a highly detailed model for the bulk solvent obtained from molecular-dynamics simulations shows an improvement of the totally cross-validated free R value of only 0.3%. Online 12 July 2011 |
 | Acta Cryst. (2011). D67, 742-744 [ doi:10.1107/S0907444911022803 ] Distinguishing between Cl- and O22- as the bridging element between Fe3+ and Cu2+ in resting-oxidized cytochrome c oxidaseM. Suga, N. Yano, K. Muramoto, K. Shinzawa-Itoh, T. Maeda, E. Yamashita, T. Tsukihara and S. YoshikawaSynopsis: An anomalous dispersion analysis was performed in order to conclusively demonstrate the absence of Cl- between the Fe3+ and Cu2+ in resting-oxidized cytochrome c oxidase. Online 12 July 2011 |
Acta Cryst. (2011). D67, 745 [ doi:10.1107/S0907444911026631 ] Processing incommensurately modulated protein diffraction data with Eval15. CorrigendumJ. Porta, J. J. Lovelace, A. M. M. Schreurs, L. M. J. Kroon-Batenburg and G. E. O. BorgstahlSynopsis: A correction to the article by Porta et al. [(2011). Acta Cryst. D67, 628-638]. Online 12 July 2011 |
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