>4oz6A (A:) observed residues (from ATOM records)
aitgdalvalpegesvriadivpgarpnsdnaidlkvldrhgnpvladrlfhsgehpvyt
vrtveglrvtgtanhpllclvdvagvptllwklideikpgdyaviqrsafvpglvrflaq
aiadeltdgrfyyakvasvtdagvqpvyslrvdacdaafitngfvshnteap