Chains and heterogens:
PDB Chain Sequences:
>1eheA (A:) apsfpfsrasgpeppaefaklratnpvsqvklfdgslawlvtkhkdvcfvatseklskvr trqgfpelsasgkqaakakptfvdmdppehmhqrsmveptftpeavknlqpyiqrtvddl leqmkqkgcangpvdlvkefalpvpsyiiytllgvpfndleyltqqnairtngsstarea saanqelldylailveqrlvepkddiisklcteqvkpgnidksdavqiaflllvagnatm vnmialgvatlaqhpdqlaqlkanpslapqfveelcryhtasalaikrtakedvmigdkl vranegiiasnqsanrdeevfenpdefnmnrkwppqdplgfgfgdhrciaehlakaeltt vfstlyqkfpdlkvavplgkinytplnrdvgivdlpvif