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Lead Optimization Computational Protocol at PDB Scale to Rationally Optimize Attachments to a Given Kinase Inhibitor Scaffold
Moriaud F., Henry T., Adcock S.A., Vorotynsev A.M., Martin L., Doppelt O.

We’ve used MED-SuMo to query and mine the Protein’s Surface Chemical Functions surrounding fragments of PDB ligands, seeking similarities with the kinase of interest (Vegfr DFGout, pdb code 2oh4, ligand code GIG) and collecting a library of 1129 unique fragments positioned in the vegfr’s active site and annotated with the counts of contacts and h-bonds. With them we optimize a substructure of the GIG ligand to find others DFGout ligands.

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New Developments for a Full Automation of the FIP Beamline at the ESRF
Jacquamet L., Bertoni A., Borel F., Charrault P., Israel-Gouy P., Iwema T., Kahn R., Joly J., Ohana J., Pirocchi M., Robin A., Serre L., Vernede X. and Ferrer J. L.

FIP (French beamline for the Investigation of Proteins) at the ESRF (European Synchrotron Radiation Facility) pushed developments in automation to reach a fully automated beamline. - The energy adjustment and beam optimization are completely automated. - The screening of the different protein crystals is ensured by a robotic system.In addition, this robot offers the possibility to analyze crystals directly as they grow in drops inside crystallization plates.

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Insights into the Mechanism of Partial Agonism: Crystal Structures of the Peroxisome Proliferator-activated Receptor-gamma Ligand-Binding Domain in the Complex with Two Enantiomeric Ligands
Giorgio Pochetti, Cristina Godio, Nico Mitro, Donatella Caruso, Samuele Scurati, Andrea Galmozzi, Fulvio Loiodice, Giuseppe Fracchiolla, Paolo Tortorella, Antonio Laghezza, Antonio Lavecchia, Ettore Novellino, Fernando Mazza, Maurizio Crestani

The peroxisome proliferator-activated receptors (PPARs) are transcriptional regulators of glucose and lipid metabolism. They are activated by natural ligands, such as fatty acids, and are also target of synthetic antidiabetic and hypolipidemic drugs. By using cell-based reporter assays, we studied the transactivation activity of two enantiomeric ureidofibrate derivatives.

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Methods For Automated Structure Determination for Ligands Within a Protein-Ligand Complex
Gregory L. Warren and Matthew T. Stahl

Afitt is a software package for automated ligand conformation generation and placement within algorithmically identified unfilled electron density. Following real space refinement, the ligand solution is sent for subsequent refinement by Refmac or CNX, via coordinate and dictionary files. We have validated Afitt on forty publicly available data sets, chosen because it contains examples of highly strained ligand conformations.

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Automated, Low Volume Dynamic Light Scattering Technology to Accelerate Protein Crystallization
Kevin Jackson and Robert Collins

The quest for solving protein structure largely relies upon X-Ray diffraction, a method requiring crystalline forms of the target protein. Among the many steps comprising structure determination, the process of protein crystallization represents one of the most significant, time-consuming challenges. A new low sample volume, automated dynamic light scattering (DLS) technology has been developed – the DynaPro Plate Reader.

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A Solution for Low Volume Pipetting Applications Requiring High Accuracy of Sample Placement
Joby Jenkins, Rob Lewis, Tristan Cope and Chloë Milburn

Mosquito’s unique positive displacement disposable tips and precise X, Y and Z movements allow smaller drops with accurate and repeatable volumes to be positioned very precisely. This ability is essential for successful assay miniaturisation and the set-up of more effective serial dilutions or protein crystallography screens.

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Facilitating Low Volume Protein Crystallography Set-ups Using the Mosquito® Liquid Handler
Jas Sanghera, Joby Jenkins, Rob Lewis, Chloe Milburn

The mosquito® (TTP LabTech) offers fast positive displacement pipettingfor accurate and reproducible aspiration and dispensing throughout the 50 nL-1.2 µL range, producing CVs of <8% at 50 nLirrespective of viscosity. Mosquito’s micropipettes are also disposable, thus guaranteeing zero cross-contamination where required.

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From Medicinal Plants to Bioactive Drugs
Ilaria Lampronti, Mahmud T.H. Khan, Antoine M. Saab, Elisabetta Lambert, Letizia Penolazzi, Roberta Piva and Roberto Gambari

The aim of our study was to analyze the antiproliferative activity effects on human tumor cell lines and the differentiating activity on human erythroleukemic K562 cells of different extracts derived from medicinal plants of Bangladesh and Lebanon.

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Rapid and Miniaturized Robotic Crystallization Experiment using the Honeybee 963™ System
Malcolm Willson, Hamid Khoja and Charles Dang

The Honeybee 963 for automated sitting drop crystallization studies enables rapid, precise and accurate dispensing of nano-liter (nl) volumes of screening and protein solutions. Rapid dispensing to both reservoirs and shelves minimizes evaporation while precise and accurate dispensing allows for miniaturization and conserves precious protein.

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Scientific News
A New Way to Look at MOFs
International study challenges prevailing view on how metal organic frameworks store gases.
Major Advance in Crystal Structure Prediction Methods
The Cambridge Crystallographic Data Centre (CCDC) announces that the results of its 6th blind test of crystal structure prediction methods demonstrate significant advancement in in comparison with previous tests.
Protein Structure Discovery Opens Window on Basic Life Process
Biochemists at Oregon State University have made a fundamental discovery about protein structure that sheds new light on how proteins fold, which is one of the most basic processes of life.
Clearest Ever Images of Enzyme that Plays Key Roles in Aging, Cancer
UCLA-led research on telomerase could lead to new strategies for treating disease
New Approach to Treating Heparin-induced Blood Disorder
A potential treatment for a serious clotting condition that can strike patients who receive heparin to treat or prevent blood clots may lie within reach by elucidating the structure of the protein complex at its root.
Escape Prevention
Studying flu virus structure brings us a step closer to a permanent vaccine.
Structure of Protein at Root of Muscular Disease Decoded
Researchers at Rice University and Baylor College of Medicine have unlocked the structural details of a protein seen as key to treating a neuromuscular disease.
A Natural Light Switch
MIT scientists identify and map the protein behind a light-sensing mechanism.
First Complete Structural Study Of A Pegylated Protein
Significant data obtained at NUI Galway reports first crystal structure of a protein modified with a single PEG chain.
Cellular Contamination Pathway for Heavy Elements Identified
Berkeley Lab scientists find that an iron-binding protein can transport actinides into cells.
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