>4nifD (D:) observed residues (from ATOM records) vfsdgyvvketigvgsyseckrcvhkatnmeyavkvidkskrdpseeieillrygqhpni itlkdvyddgkhvylvtelmrggelldkilrqkffsereasfvlhtigktveylhsqgvv hrdlkpsnilyvdesgnpeclricdfgfakqlraengllmtpcnfvapevlkrqgydegc diwslgillytmlagytpfangpsdtpeeiltrigsgkftlsggnwntvsetakdlvskm lhvdphqrltakqvlqhpwvtqkdklpqsqlshqdlqlvkgamaatysalnsskptpqlk piessilaqrrvr