>1i31A (A:) observed residues (from ATOM records)
igwrregikyrrnelfldvlesvnllmspqgqvlsahvsgrvvmksylsgmpeckfgmnd
kikqsiaiddctfhqcvrlsersisfippdgefelmryrttkdiilpfrviplvrevgrt
klevkvviksnfkpsllaqkievriptplntsgvqvicmkgkakykasenaivwkikrma
gmkesqisaeiellptndkkkwarppismnfevpfapsglkvrylkvfepklnysdhdvi
kwvryigrsgiyetrc