Chains and heterogens:
PDB Chain Sequences:
>1e2dA (A:) rrgalivlegvdragkstqsrklvealcaaghraellrfpersteigkllssylqkksdv edhsvhllfsanrweqvplikeklsqgvtlvvdryafsgvaftgakenfsldwckqpdvg lpkpdlvlflqlqladaakrgafgheryengafqeralrcfhqlmkdttlnwkmvdasks ieavhedirvlsedaiatatekplgelwk