>4niaA (A:) observed residues (from ATOM records)
nsnvvtmiragsypkvnptptwvraipfevsvqsgiafkvpvgslfsanfrtdsftsvtv
msvrawtqltppvneysfvrlkplfktgdsteefegrasnintrasvgyriptnlrqntv
aadnvcevrsncrqvalvisccfn