>4bxaB (B:) observed residues (from ATOM records)
sgpvpsrarvytdvnthrpreywdyeshvvewgnqddyqlvrklgrgkysevfeainitn
nekvvvkilkpvkkkkikreikilenlrggpniitladivkdpvsrtpalvfehvnntdf
kqlyqtltdydirfymyeilkaldychsmgimhrdvkphnvmidhehrklrlidwglaef
yhpgqeynvrvasryfkgpellvdyqmydysldmwslgcmlasmifrkepffhghdnydq
lvriakvlgtedlydyidkynieldprfndilgrhsrkrwerfvhsenqhlvspealdfl
dkllrydhqsrltareamehpyfytvvkdqa