>1r4pA (A:) observed residues (from ATOM records)
reftidfstqqsyvsslnsirteistplehisqgttsvsvinhtppgsyfavdirgldvy
qarfdhlrliieqnnlyvagfvntatntfyrfsdfthisvpgvttvsmttdssyttlqrv
aalersgmqisrhslvssylalmefsgntmtrdasravlrfvtvtaealrfrqiqrefrq
alsetapvytmtpgdvdltlnwgrisnvlpeyrgedgvrvgrisfnnisailgtvaviln
checqitgdrpvikinntlwesntaaaflnrksqflyttgk