>1i3rF (F:) observed residues (from ATOM records)
gkkvitafneglkggggslvgggsggggsrpwfleycksechfyngtqrvrllvryfynl
eenlrfdsdvgefravtelgrpdaenwnsqpefleqkraevdtvcrhnyeifdnflvprr
veptvtvyptktqplehhnllvcsvsdfypgnievrwfrngkeektgivstglvrngdwt
fqtlvmletvpqsgevytcqvehpsltdpvtvewka