A subset of structures from which homologous sequences have been largely removed can be obtained from the result list of a query. This option--which is activated by selecting the "remove sequence homologs" option on SearchLite, SearchFields, and the PDB home page-- filters subsets of structures that match a particular query. The default threshold for sequence similarity removal for queries from the home page or SearchLite is 90%; SearchFields provides the option of selecting 50, 70, or 90% similarity as cut-off values. Users can toggle between the complete set of results and the reduced subset by using the options menu at the top of the Query Result Browser.
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