>6ag9U (U:) observed residues (from ATOM records)
iiggefttienqpwfaaiyrrhrggsvtyvcggslispcwvisathcfidypkkedyivy
lgrsrlnsntqgemkfevenlilhkdysadtlahhndiallkirskegrcaqpsrtiqti
alpsmyndpqfgtsceitgfgkeqstdylypeqlkmtvvklishrecqqphyygsevttk
mlcaadpqwktdscqgdsggplvcslqgrmtltgivswgrgcalkdkpgvytrvshflpw
irsht