The application uses custom parsing rule A if the FASTA ID, the accession#, and the description are separated by a pipe (|) symbol. A typical FASTA title line, which matches this parsing rule, looks like this:
>tr|18FC3|18FC3_HALWD IS1341-type transposase - Halouadratum walsbyi (strain DSM 16790).
FASTA ID:18FC3_HALWD
Accession#:18FC3
Description:IS1341-type transposase - Halouadratum walsbyi (strain DSM 16790).