Chains and heterogens:
PDB Chain Sequences:
>7c0pA (A:) aaqtnapwglarisstspgtstyyydesagqgscvyvidtgieashpefegraqmvktyy yssrdgnghgthcagtvgsrtygvakktqlfgvkvlddngsgqystiiagmdfvasdknn rncpkgvvaslslgggysssvnsaaarlqssgvmvavaagnnnadarnyspasepsvctv gasdrydrrssfsnygsvldifgpgtdilstwiggstrsisgtsmatphvaglaaylmtl gkttaasacryiadtankgdlsnipfgtvnllaynnyqa