There are three sequence search types:
BLAST (Basic Local Alignment Search Tool): Search for proteins as well as nucleotides using a set of local alignment algorithms (BLASTn, MegaBlast, BLASTp, tBLASTn, BLASTx).
CDR (Complementarity-Determining Region): Search for antibody and t-cell receptors.
Motif: Search for short patterns in DNA, RNA, or proteins with queries enabled for additional variability.