The authors wish to make the following correction to their article. Co-author Alexandre
Renaux affiliated with the EMBLEBI was mistakenly omitted from the list of authors. His
name has been added to the full list of authors in the Acknowledgement section of the
published article.

The UniProt knowledgebase is a large resource of protein sequences and associated
detailed annotation. The database contains over 60 million sequences, of which over half a
million sequences have been curated by experts who critically review experimental and
predicted data for each protein. The remainder are automatically annotated based on rule
systems that rely on the expert curated knowledge. Since our last update in 2014, we have
more than doubled the number of reference proteomes to 5631, giving a greater coverage of …