>1gn4D (D:) observed residues (from ATOM records)
aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill
neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq
gsgwaalgwdtlgnkllifqvydeqtnfplgivplllldmwehafylqyknvkvdfakaf
wnvvnwadvqsryaaats