Chains and heterogens:
PDB Chain Sequences:
>1e4iA (A:) tifqfpqdfmwgtataayqiegayqedgrglsiwdtfahtpgkvfngdngnvacdsyhry eedirlmkelgirtyrfsvswprifpngdgevnqkgldyyhrvvdllndngiepfctlyh wdlpqalqdaggwgnrrtiqafvqfaetmfrefhgkiqhwltfnepwciaflsnmlgvha pgltnlqtaidvghhllvahglsvrrfrelgtsgqigiapnvswavpystseedkaacar tislhsdwflqpiyqgsypqflvdwfaeqgatvpiqdgdmdiigepidmiginyysmsvn rfnpeagflqseeinmglpvtdigwpvesrglyevlhylqkygnidiyitengacindev vngkvqddrrisymqqhlvqvhrtihdglhvkgymawslldnfewaegynmrfgmihvdf rtqvrtpkqsyywyrnvvsnnwletrr