Select the average number of cross-references to the PDB database of UniProt entries that have at least one cross-reference to the PDB database
Find the co-occurence count of Topological Domain comment text in UniProtKB entries
Find longest comment text associated with a UniProtKB Natural Variant Annotation
Connect patents cited in UniProtKB with those in the patent database at EPO via publication number.
Select all cross-references to external databases of the category '3D structure databases' of UniProt entries that are classified with the keyword 'Acetoin biosynthesis (KW-0005)'