>5k52C (C:) observed residues (from ATOM records)
idyqsetykdaysrinaiviegedeaannyvrlaelmpeqseelaslakmearhkkgfta
cgknlnvtpdmdfakkffsdlhgnfqvaaaagnivtclliqaliieafaisaynvyipha
ddfarkitenvvkdeylhlnfgeqwlkanfesakdeleranrenlaivwrmldevagdal
vlgmekealmedftiayqealqnigfstretlrmltaglaa