>1rtrA (A:) observed residues (from ATOM records)
tnlpmnklidevnnelsvainksvmdtqleesmlyslnaggkrirpvlllltldslntey
elgmksaialemihtyslihddlpamdnddyrrgkltnhkvygewtailagdalltkafe
lissddrltdevkikvlqrlsiasghvgmvggqmldmqsegqpidletlemihktktgal
ltfavmsaadianvddttkehlesysyhlgmmfqikddlldcygdeakstyvsllgkdga
edkltyhrdaavdeltqideqfntkhlleivdlfysr