>1i3rB (B:) observed residues (from ATOM records)
gkkvitafneglkggggslvgggsggggsrpwfleycksechfyngtqrvrllvryfynl
eenlrfdsdvgefravtelgrpdaenwnsqpefleqkraevdtvcrhnyeifdnflvprr
veptvtvyptktqplehhnllvcsvsdfypgnievrwfrngkeektgivstglvrngdwt
fqtlvmletvpqsgevytcqvehpsltdpvtvewka