>3mx3A (A:) observed residues (from ATOM records)
kvtssllatglllditsssasksfiydellakqmawgesmedyqynvfgrsgfggyttli
naqkmvesvsddnvnaydglahfikaykifymsmemgdlpyeealqgelglvrpkyntqk
evmnfilsdletayelfstakdfdgdpilggsiskwkkattafqlkvlmhlskkesdadl
kvkerfarivasgslmesnednlqmkyaantvypfhntntkhagyamlstmlidkfkatg
dirmfyyakpakaklnegvtadswdayigtdpslpfeqiekayateqysgfnarytdyps
gepvvrlgyaeqnfilaeaavrgwisgdasayykkairahmefiasntpdeevyhhghpi
teeaiaafletpaiqlsgekeediekiltqrylasfmqhpydvyydyrrtgypvlpinpa
tnrntmndrlpmrwmypksesdynlehqnealerqfggvddvnklmwilq