Chains and heterogens:
PDB Chain Sequences:
>1gn2A (A:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2B (B:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2C (C:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2D (D:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2E (E:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2F (F:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2G (G:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats
>1gn2H (H:) aeytlpdldwdygalephisgqinelhhskhhatyvkgandavakleearakedhsaill neknlafnlaghvnhtiwwknlspnggdkptgelaaaiadafgsfdkfraqfhaaattvq gcgwaalgwdtlgnkllifqvydhqtnfplgivplllldmwehafylqyknvkvdfakaf wnvvnwadvqsryaaats