>4ik0B (B:) observed residues (from ATOM records)
mqfskmhglgndfmvvdavtqnvffspelirrladrhlgvgfdqllvveppydpeldfhy
rifnadgsevaqcgngarcfarfvrlkgltnkrdirvstangrmvltvtdddlvrvnmge
pnfepsavpfrankaektyimraaeqtilcgvvsmgnphcviqvddvdtaavetlgpvle
sherfperanigfmqvvkrehirlrvyergagetqacgsgacaavavgiqqgllaeevrv
elpggrldiawkgpghplymtgpavhvadgfihlh