Chains and heterogens:
PDB Chain Sequences:
>1mudA (A:) mqasqfsaqvldwydkygrktlpwqidktpykvwlsevmlqqtqvatvipyferfmarfp tvtdlanapldevlhlwtglgyyararnlhkaaqqvatlhggkfpetfeevaalpgvgrs tagailslslgkhfpilngnvkrvlarcyavsgwpgkkevenklwslseqvtpavgverf nqammdlgamictrskpkcslcplqngciaaannswalypgkkpk