Chains and heterogens:
PDB Chain Sequences:
>1f25A (A:) apsfpfsrasgpeppaefaklratnpvsqvklfdgslawlvtkhkdvcfvatseklskvr trqgfpelsasgkqaakakptfvdmdppehmhqrsmveptftpeavknlqpyiqrtvddl leqmkqkgcangpvdlvkefalpvpsyiiytllgvpfndleyltqqnairtngsstarea saanqelldylailveqrlvepkddiisklcteqvkpgnidksdavqiaflllvagnanm vnmialgvatlaqhpdqlaqlkanpslapqfveelcryhtasalaikrtakedvmigdkl vranegiiasnqsanrdeevfenpdefnmnrkwppqdplgfgfgdhrciaehlakaeltt vfstlyqkfpdlkvavplgkinytplnrdvgivdlpvif