>3ctlD (D:) observed residues (from ATOM records)
mkispslmcmdllkfkeqiefidshadyfhidimdghfvpnltlspffvsqvkklatkpl
dchlmvtrpqdyiaqlaragadfitlhpetingqafrlideirrhdmkvglilnpetpve
amkyyihkadkitvmtvdpgfagqpfipemldklaelkawreregleyeievdgscnqat
yeklmaagadvfivgtsglfnhaenideawrimtaqila