>2di4B (B:) observed residues (from ATOM records)
ispkekekiaiheaghalmglvsddddkvhkisiiphiydkkdlynkilvllggraaeev
ffgkdgittgaendlqratdlayrmvsmwgmsdkvgpiairrtavdtspdllreideevk
riiteqyekakaiveeykeplkavvkklleketitceefvevfklygielkdkck