>4io4B (B:) observed residues (from ATOM records)
gsarlkgitlrigviesvpftivanvinttkltgyvldlieylrdkmgfvadvqlappnt
sytglvlalangdydiaigditvtsarreivafsnsisdnsmrilmrkgtlidgmddlkn
gkipynrigirigtagedyylreisggsrnfyplksrqemydsllagiidvsfmdigtae
yvtnniycnltlvgedfdkstfgivtpkewlyakdldvnilslretgildnlkkkwfqtk
acp