Chains and heterogens:
PDB Chain Sequences:
>1x11A (A:) medlidgiifaanylgstqllsdktpsknvrmmqaqeavsrikmaqklaksrkkapeges qpmtevdlfiltqrikvlnadtqetmmdhplrtisyiadignivvlmarrriprsnsqen veashpsqdgkrqykmichvfesedaqliaqsigqafsvayqeflrangi
>1x11A (A:) medlidgiifaanylgstqllsdktpsknvrmmqaqeavsrikmaqmtevdlfiltqrik vlnadtqetmmdhplrtisyiadignivvlmarrgkrqykmichvfesedaqliaqsigq afsvayqeflrangi
>1x11B (B:) iifaanylgstqllsdktpsknvrmmqaqeavsrikmaqklaksrkkapegesqpmtevd lfiltqrikvlnadtqetmmdhplrtisyiadignivvlmarrriprsnsqenveashps qdgkrqykmichvfesedaqliaqsigqafsvayqeflranginp
>1x11B (B:) iifaanylgstqllvrmmqaqeavsrikmaqklaksmtevdlfiltqrikvlnadtqetm mdhplrtisyiadignivvlmarykmichvfesedaqliaqsigqafsvayqeflrangi np