>4rkqA (A:) observed residues (from ATOM records)
akglvqgartsvglaipdltnpyfpafassvvelatlrgwhvvvddyghggrsgldaveh
lapqvdavigylggyadqaqtvlgrrplivldenpggaagsinfdyqhaakvavaqlmds
krqhiayleagsasesdepvpctvrgkavagrldelgaswslivaeetaeaareaaaafl
rehpetdgilafndlmaagvlkalsgsgrrvpedcavigmdgiplgellspqlstmaldl
revgraavellvgllsgavtpgsqssrttlkhrlvlresteg