The funding section was mistakenly not included in this paper. The article has now been updated to include this section. The publisher apologises for this error.

Author notes

These authors contributed equally to this work.

Citation details: Holliday,G.L., Brown,S.D., Akiva,E. et al. Biocuration in the structure–function linkage database: the anatomy of a superfamily. Database (2017) Vol. 2017: article ID bax006; doi:10.1093/database/bax006

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