>4i2bA (A:) observed residues (from ATOM records)
kisqyacqrrttlnnynqlftdaldilaendelrenegsclafmrassvlkslpfpitsm
kdtegipclgdkvksiiegiiedgesseakavlnderyksfklftsvfgvglktaekwfr
mgfrtlskiqsdkslrftqmqkagflyyedlvscvnrpeaeavsmlvkeavvtflpdalv
tmtggfrrgkmtghdvdflitspeatedeeqqllhkvtdfwkqqglllycdilestfekf
kqpsrkvdaldhfqkcflilkldhgrvhsekqegkgwkairvdlvmcpydrrafallgwt
gsrqferdlrryatherkmmldnhalydrtkrvfleaeseeeifahlgldyiepwerna