>4niaB (B:) observed residues (from ATOM records)
nsnvvtmiragsypkvnptptwvraipfevsvqsgiafkvpvgslfsanfrtdsftsvtv
msvrawtqltppvneysfvrlkplfktgdsteefegrasnintrasvgyriptnlrqntv
aadnvcevrsncrqvalvisccfn