>4rr3B (B:) observed residues (from ATOM records)
gfptelkpgtnqflttddgvsapilpnfhptpcihipgevrnllelcqvetilevnnvpt
natslmerlrfpvsaqagkgelcavfradpgrsgpwqstllgqlcgyytqwsgslevtfm
ftgsfmatgkmliaytppggplpkdratamlgthviwdfglqssvtlvipwisnthyryt
tglvsiwyqtnyvvpigapntayiialaaaqknftmqlckdasdilqtgt