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. 2017 Nov 10;46(Database issue):D661–D667. doi: 10.1093/nar/gkx1064

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© The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.

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 reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — Metabolite coverage growth in WikiPathways. Taking KEGG as the standard, we plot the growth of WikiPathways (WP) coverage over the past five years. WikiPathways and KEGG unique human metabolite counts were calculated by extracting identifiers from archived WikiPathways releases and unifying to, ideally, Wikidata ID, otherwise ChEBI or HMDB. About two-third of all identifiers (blue line) could be mapped to a Wikidata (red line). Metabolite IDs that could not be mapped to these three databases, have decreased over the last five years (unmapped, green line).