Medchemica is company specialising in molecular design and analysis. We specialise in hypothesis based, data driven design, and developing the tools to enhance those approaches. This is our blog capturing what we're up to in a more relaxed way.
Thursday, 11 April 2013
Predicting Human Serum Albumin binding
http://pubs.acs.org/doi/pdf/10.1021/ci3006098
I have enjoyed reading this morning the publication of Hall, Jorgensen and Whitehead on Automated Ligand- and Structure-Based Protocol for in Silico Prediction of Human Serum Albumin Binding (J. Chem. Inf. Model, ASAP, DOI:10.1021/ci3006098). I have battled a couple of times with acidic compounds which had high albumin binding. This paper was a good summary of several of the approaches to QSAR models and combinations docking and the tricky problem of site selection (3 principle bind site, 3 others and a couple of structures with another 2 - 8 in total). I am pleased they have made the work flow available at a KNIME module with Schroedinger plug ins. They used Induced Fit Docking (IFD) to place molecules into the respective sites with some success by the look of it. I must admit docking Warfarin in does look a nightmare with two lysines and a arginine to bind to.
As we are interested in Knowledge Based Design from Matched Molecular Pair Analysis (MMPA) these sort of QSAR models and docking approaches have a synergy. Can the output of MMPA, the power to suggest molecules to make that will improve a property, be combined with a prediction to improve further the decision of what to make next with high probability of what the make next?
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