The database provides four types of data in fasta-format for download. All sequences are sorted by proteins because we do not consider fasta files containing sequences from different proteins to be useful.

| Not Aligned / No Breaks | The selected sequences are not aligned (all gaps removed) and do not contain any breaks. |
| Not Aligned / Breaks | The selected sequences are not aligned (all gaps removed). There is a line break every 80 amino acids. |
| Aligned / No Breaks | The selected sequences are aligned (derived from the multiple sequence alignment of the protein and gaps common to all sequences removed) and do not contain any breaks. |
| Aligned / Breaks | The selected sequences are aligned (derived from the multiple sequence alignment of the protein and gaps common to all sequences removed). There is a line break every 80 amino acids. |