 SGD biocurators search all the scientific literature that relevant to "S. cerevisiae", read the papers and capture their major finding in various defined fields of the database.The biocurators at SGD aim to annotate each gene by identifying function(s) from primary literature and linking to terms using the structured knowledge representation in the gene ontology.Additionally, functions identified from high throughput experiments as well as computationally predicted function annotations are included from GO Annotation project.