Chains and heterogens:
PDB Chain Sequences:
>1emjA (A:) meffgeswkkhlsgefgkpyfiklmgfvaeerkhytvyppphqvftwtqmcdikdvkvvi lgqdpyhgpnqahglcfsvqrpvppppsleniykelstdiedfvhpghgdlsgwakqgvl llnavltvrahqanshkergweqftdavvswlnqnsnglvfllwgsyaqkkgsaidrkrh hvlqtahpsplsvyrgffgcrhfsktnellqksgkkpidwkel