deprecated terms obsolete Evidence Code true The information in this class and its sub-classes will be migrated to evidence code properties. http://www.geneontology.org/faq/what-evidence-code 'Every annotation must be attributed to a source, which may be a literature reference, another database or a computational analysis. The annotation must indicate what kind of evidence is found in the cited source to support the association between the gene product and the GO term. A simple controlled vocabulary is used to record evidence; and the evidence codes are simply the three-letter codes used to signify the type of evidence cited. [Curator team: Exact []]'