Chains and heterogens:
PDB Chain Sequences:
>1e9eA (A:) arrgalivlegvdragkstqsrklvealcaaghraellrfpersteigkllssylqkksd vedhsvhllfsanrweqvplikeklsqgvtlvvdryafsgvaytgakenfsldwckqpdv glpkpdlvlflqlqladaakrgafgheryengafqeralrcfhqlmkdttlnwkmvdask sieavhedirvlsedaiatatekplkelwk