>4xl8A (A:) observed residues (from ATOM records)
giqtlwtpptsnpnctvytesdsllslcltkcgahvlgsvsltgvagtmtnmaetslaie
ftfddtgkllhsplvnntfsirqgdspasnptynalafmpnstlyarggsgeprnnyyvq
tylrgnvqrpitltvtfnsaatgyslsfkwtavvrekfaapatsfcyiteq