>5ak2B (B:) observed residues (from ATOM records)
lsltadqmvsalldaeppilysepfseasmmglltnladrelvhminwakrvpgfvdltl
hdqvhllesawleilmiglvwrsmehpgkllfapnllldrnqgksvegmveifdmllats
srfrmmnlqgeefvclksiillnsgvykdhihrvldkitdtlihlmakagltlqqqhqrl
aqlllilshirhmsnkgmehlysmllemld