>4m89B (B:) observed residues (from ATOM records)
gflqgkkilitgmisersiaygiakacreqgaelaftyvvdkleervrkmaaeldselvf
rcdvasddeinqvfadlgkhwdgldglvhsigfapkealsgdfldsisreafntaheisa
yslpalakaarpmmrgrnsaivalsylgavraipnynvmgmakasleagirftaaclgke
gircngisagpiktlaasgiadfgkllghvaahnplrrnvtieevgntaafllsdlssgi
tgeityvdggysinals