Skip to main content
. 2021 Jan 22;19:12. doi: 10.1186/s12915-020-00940-y

Fig. 1.

Fig. 1

Structure of a Wikidata item, containing a set of statements which are key-value pairs, with qualifiers and references. Here the item for the angiotensin-converting enzyme 2 (ACE2) protein is given containing a statement about its molecular function. This molecular function (peptidyl-dipeptidase activity) contains a reference stating when and where this information was obtained