SeqnConverter, a tool for convert and format of the files of nucleic acid sequences, were
programmed by us using Visual Basic (VB). The computer program could obtain the nucleic acid
sequence in the HTM and GBK files from GenBank and save them as FASTA files. The program could
also convert DNA to RNA and mRNA, or RNA to DNA and cDNA, and convert a positive strand to its
complementary strand or to its reverse strand.