The BLASTGrabber description viewer. A) The descriptions in the sequence headers are broken apart by whitespaces, allowing a per-word analysis of the BLAST results. Many hits clearly belong to the “Cell adhesion” and “Down syndrome” protein categories. B) Unique headers are displayed in the description viewer. Using a regular expression search term (user-friendly regex templates are provided), all headers containing the “cell adhesion” term are selected, and can now be copied to the BLASTGrabber clipboard.