Chains and heterogens:
PDB Chain Sequences:
>2sspE (E:) meffgeswkkhlsgefgkpyfiklmgfvaeerkhytvyppphqvftwtqmcdikdvkvvi lgqdpyhgpnqahglcfsvqrpvppppsleniykelstdiedfvhpghgdlsgwakqgvl llnavltvrahqanshkergweqftdavvswlnqnsnglvfllwgsyaqkkgsaidrkrh hvlqtahpspasvyrgffgcrhfsktnellqksgkkpidwkel