>1is7E (E:) observed residues (from ATOM records)
rprseednelnlpnlaaayssilrslgedpqrqgllktpwraatamqfftkgyqetisdv
lndaifdedhdemvivkdidmfsmcehhlvpfvgrvhigylpnkqvlglsklariveiys
rrlqvqerltkqiavaitealqpagvgvvieathmcmvmrgvqkmnsktvtstmlgvfre
dpktreefltlirs