>1tu3B (B:) observed residues (from ATOM records) kicqfklvllgesavgksslvlrfvkgqfhefqestigaafltqtvclddttvkfeiwdt agqeryhslapmyyrgaqaaivvyditneesfaraknwvkelqrqaspnivialsgnkad lankravdfqeaqsyaddnsllfmetsaktsmnvneifmaiakklp