Biological Crystallography

 

Acta Cryst. (2011). D67, 747-755  [ doi:10.1107/S0907444911023249 ]

In-plate protein crystallization, in situ ligand soaking and X-ray diffraction

A. le Maire, M. Gelin, S. Pochet, F. Hoh, M. Pirocchi, J.-F. Guichou, J.-L. Ferrer and G. Labesse

Synopsis: New 96-well plates for crystallization have been developed that allow the collection of X-ray diffraction data directly in-plate or in situ. Automatic and rapid analyses of the data allow the detection of ligand bound to the crystallized macromolecule.

PDB references: 3qyw, 3qyz and 3qyu

Online 9 August 2011

 

Acta Cryst. (2011). D67, 756-762  [ doi:10.1107/S0907444911024486 ]

Sixty years from discovery to solution: crystal structure of bovine liver catalase form III

L. M. Foroughi, Y.-N. Kang and A. J. Matzger

Synopsis: The crystal structure of a third form of bovine liver catalase, previously characterized by electron microscopy, has been determined using single-crystal X-ray diffraction. In light of this higher resolution data set, an assessment has been made of results from earlier electron-microscopy studies.

PDB reference: 3nwl

Online 9 August 2011

 

Acta Cryst. (2011). D67, 763-773  [ doi:10.1107/S090744491102405X ]

Inhibitor-bound structures of human pyruvate dehydrogenase kinase 4

M. Kukimoto-Niino, A. Tokmakov, T. Terada, N. Ohbayashi, T. Fujimoto, S. Gomi, I. Shiromizu, M. Kawamoto, T. Matsusue, M. Shirouzu and S. Yokoyama

Synopsis: The crystal structures of human pyruvate dehydrogenase kinase 4 (PDK4) bound to the inhibitor M77976, as well as bound to AMPPNP or ADP, are presented. The structures provide a basis for the development of novel inhibitors targeting the nucleotide-binding pocket of PDK4.

PDB references: 2e0a, 2zdx and 2zdy

Online 9 August 2011

 

Acta Cryst. (2011). D67, 774-783  [ doi:10.1107/S0907444911024462 ]

Location and conformation of pantothenate and its derivatives in Mycobacterium tuberculosis pantothenate kinase: insights into enzyme action

B. Chetnani, P. Kumar, K. V. Abhinav, M. Chhibber, A. Surolia and M. Vijayan

Synopsis: The natural locations and conformations of pantothenate, pantothenol and N-nonylpantothenamide in M. tuberculosis pantothenate kinase derived from crystal structures provide further insight into the mode of action of this interesting enzyme.

PDB references: 3avo, 3avp and 3avq

Online 9 August 2011

 

Acta Cryst. (2011). D67, 784-791  [ doi:10.1107/S0907444911024814 ]

Structure of trifunctional THI20 from yeast

J. B. French, T. P. Begley and S. E. Ealick

Synopsis: This study presents the crystal structure of the trifunctional THI20 from S. cerevisiae, an enzyme with an N-terminal HMP kinase (ThiD-like) domain and a C-terminal thiaminase II (TenA-like) domain. In addition, two distinct structural classes of TenA have been identified by comparison to other known structures.

PDB reference: 3rm5

Online 9 August 2011

 

Acta Cryst. (2011). D67, 792-803  [ doi:10.1107/S0907444911027600 ]

Dark progression reveals slow timescales for radiation damage between T = 180 and 240 K

M. Warkentin, R. Badeau, J. Hopkins and R. E. Thorne

Synopsis: Between T = 180 and 240 K, radiation damage progresses on minute timescales when the X-rays are off, suggesting that a fraction of damage at higher temperatures may be outrun using currently available sources and detectors.

Online 9 August 2011

 

Acta Cryst. (2011). D67, 804-812  [ doi:10.1107/S090744491102779X ]

Accelerating ab initio phasing with de novo models

R. Shrestha, F. Berenger and K. Y. J. Zhang

Synopsis: An approach for ab initio phasing with de novo models has been developed by initiating molecular replacement during the course of the prediction of each model. This has reduced the computing time by about two orders of magnitude compared with performing molecular replacement after the generation of all models.

Online 9 August 2011

 

Acta Cryst. (2011). D67, 813-821  [ doi:10.1107/S0907444911027806 ]

Streptavidin and its biotin complex at atomic resolution

I. Le Trong, Z. Wang, D. E. Hyre, T. P. Lybrand, P. S. Stayton and R. E. Stenkamp

Synopsis: Analysis of atomic resolution crystal structures of wild-type streptavidin (1.03 Å) and its biotin complex (0.95 Å) indicate the range of conformational states taken on by this protein in the solid state. Most of the structural variation is found in the polypeptide loops between the strands in this -sandwich protein.

PDB references: 3ry1 and 3ry2

Online 9 August 2011

 

Acta Cryst. (2011). D67, 822-825  [ doi:10.1107/S090744491102645X ]

Structure of a tropomyosin N-terminal fragment at 0.98 Å resolution

V. A. Meshcheryakov, I. Krieger, A. S. Kostyukova and F. A. Samatey

Synopsis: The crystal structure of the N-terminal fragment of the short nonmuscle -tropomyosin has been determined at a resolution of 0.98 Å.

PDB reference: 3azd

Online 9 August 2011

 

Acta Cryst. (2011). D67, 826-830  [ doi:10.1107/S0907444911026771 ]

Structure of RiVax: a recombinant ricin vaccine

P. M. Legler, R. N. Brey, J. E. Smallshaw, E. S. Vitetta and C. B. Millard

Synopsis: The X-ray crystal structure (at 2.1 Å resolution) of an immunogen under development as part of a ricin vaccine for humans is presented and structure-based analysis of the results was conducted with respect to related proteins and the known determinants for inducing or suppressing the protective immune response.

PDB reference: 3srp

Online 9 August 2011