>3l07A (A:) observed residues (from ATOM records)
amilidgkslskdlkerlatqvqeykhhtaitpklvaiivgndpasktyvaskekacaqv
gidsqvitlpehttesellelidqlnndssvhailvqlplpahinknnviysikpekdvd
gfhptnvgrlqlrdkkclesctpkgimtmlreygiktegayavvvgasnvvgkpvsqlll
nakatvttchrfttdlkshttkadilivavgkpnfitadmvkegavvidvginhvdgkiv
gdvdfaavkdkvaaitpvpggvgpmtitellyntfqcaqeln