PDB Connector Query Builder

This node provides access to the RCSB PDB advanced query webservice, in an interface which closely follows the web UI at https://www.rcsb.org/search/advanced Queries comprise nested fields and subgroups (which themselves can contain fields / subgroups to an arbitrary depth). The items in each field are combined using the indicated logic operator

Fields can be removed by clicking on the 'X' button at the left-hand side of the field, and added by clicking the 'Add Field' button at the bottom of the relevant group.

Subgroups can be added by clicking the 'Add SubGroup' button at the bottom of the relevant parent group panel, and removed by clicking the 'Remove Group' button at the bottom of the subgroup. The top-most 'parent' group cannot be removed, although it can be left empty.

Individual fields can be reset by clicking the 'Clear' button at the right-hand side of the field. Clicking on the 'Clear' button at the bottom of a subgroup panel removes all fields and subgroups from that panel

Queries can be tested by pressing the 'Count' button, either at the right-hand side of the field or the bottom of the group panel. In either case, the button text is replaced with the count for the relevant part of the query (field, subgroup or entire query). The button remains unavailable for repeated counting until the query it relates to is changed in some way.

Many of the input boxes will provide live drop-downs of possible options once text entry has started.

The relationship between Text, Structure and Sequence queries is always 'AND'

This node was developed by Vernalis Research (Cambridge, UK) . For feedback and more information, please contact knime@vernalis.com