Chains and heterogens:
PDB Chain Sequences:
>1xcdA (A:) deasgigpeehfpevpeiepmgpvcpfrcqchlrvvqcsdlglekvpkdlppdtalldlq nnkiteikdgdfknlknlhtlilinnkiskispgafaplvklerlylsknqlkelpekmp ktlqelrvheneitkvrksvfnglnqmivvelgtnplkssgiengafqgmkklsyiriad tnittipqglppsltelhldgnkitkvdaaslkglnnlaklglsfnsisavdngslantp hlrelhlnnnklvkvpggladhkyiqvvylhnnnisaigsndfcppgyntkkasysgvsl fsnpvqyweiqpstfrcvyvraavqlgny
>1xcdA (A:) gpvcpfrcqchlrvvqcsdlglekvpkdlppdtalldlqnnkiteikdgdfknlknlhtl ilinnkiskispgafaplvklerlylsknqlkelpekmpktlqelrvheneitkvrksvf nglnqmivvelgtnplkssgiengafqgmkklsyiriadtnittipqglppsltelhldg nkitkvdaaslkglnnlaklglsfnsisavdngslantphlrelhlnnnklvkvpgglad hkyiqvvylhnnnisaigsndfcppgyntkkasysgvslfsnpvqyweiqpstfrcvyvr aavql