>3krzB (B:) observed residues (from ATOM records)
ilhmplkikditiknrimmspmcmysastdgmpndwhivhyatraiggvglimqeatave
srgritdhdlgiwndeqvkelkkivdickangavmgiqlahagrkcnisyedvvgpspik
agdryklprelsveeiksivkafgeaakranlagydvveihaahgyliheflsplsnkrk
deygnsienrarflievidevrknwpenkpifvrvsaddymegginidmmveyinmikdk
vdlidvssggllnvdinlypgyqvkyaetikkrcniktsavglittqelaeeilsnerad
lvalgrellrnpywvlhtytskedwpkqyerafk