Confab – generation of diverse low energy conformers
نویسندگان
چکیده
We present a new program for conformer generation, Confab, which aims to generate diverse low energy conformers that span the space of all possible conformations. Such conformers are required for use in fields such as docking and pharmacophore searching and generation. Confab uses a torsion driving approach to travel through the set of systematically generated conformers selecting those which are below a particular energy cutoff and which are structurally distinct (according to a user-specified RMSD) from those conformers already selected. The RMSD is evaluated using Kabsch alignment [1] of heavy atoms and takes symmetry into account. To improve performance, the alignment is carried out using the Eigen maths library [2], an open source library with an emphasis on speed and efficiency. In addition, the initial pass through the set of conformers uses a tree data structure to minimise the number of alignments required to identify a structure as similar to a previous one. Confab is open source, and uses the Open Babel cheminformatics toolkit [3,4].
منابع مشابه
Confab - Systematic generation of diverse low-energy conformers
BACKGROUND Many computational chemistry analyses require the generation of conformers, either on-the-fly, or in advance. We present Confab, an open source command-line application for the systematic generation of low-energy conformers according to a diversity criterion. RESULTS Confab generates conformations using the 'torsion driving approach' which involves iterating systematically through ...
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