>3rucB (B:) observed residues (from ATOM records)
ymsryeeitqqlifspktwlitgvagfigsnllekllklnqvvigldnfstghqynldev
ktlvsteqwsrfcfiegdirdlttceqvmkgvdhvlhqaalgsvprsivdpittnatnit
gflnilhaaknaqvqsftyaassstygdhpalpkveenignplspyavtkyvneiyaqvy
artygfktiglryfnvfgrrqdpngayaavipkwtaamlkgddvyingdgetsrdfcyid
nviqmnilsalakdsakdniynvavgdrttlnelsgyiydelnlihhikyrefrsgdvra
sqadvtkaidllkyrpnikireglrlsmpwyvrflk