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. 2015 May 30;16:181. doi: 10.1186/s12859-015-0580-6

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© Esquivel-Rodriguez et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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3DZD computation pipeline. Every map in EMDB yields several 3D Zernike descriptor fingerprints. The raw map is used to generate four voxelizations: one from the author-recommended density value, one at one standard deviation, which is lower than the author-recommended contour level, and two additional thresholds that reveal core features. Each surface is represented by 121 descriptors, which are concatenated to generate various fingerprints.