>1is7F (F:) observed residues (from ATOM records)
rprseednelnlpnlaaayssilrslgedpqrqgllktpwraatamqfftkgyqetisdv
lndaifdedhdemvivkdidmfsmcehhlvpfvgrvhigylpnkqvlglsklariveiys
rrlqvqerltkqiavaitealqpagvgvvieathmcmvmrgvqkmnsktvtstmlgvfre
dpktreefltlirs