Searches for germline variable (V), diversity (D) and joining (J) genes matches for T-cell receptor (TCR) and immunoglobulin (IG) sequences using BLAST algorithm. Works both with amino-acid and nucleotide sequences and supports alignment to IMGT(R) germline sequence database, as well as custom databases. Provides information of CDR1,2 and FR1,2,3 region markup and germline sequence mutations.