Chains and heterogens:
PDB Chain Sequences:
>5kxvA (A:) aaqtnapwglarisstspgtstyyydesagqgscvyvidtgieashpefegraqmvktyy yssrdgnghgthcagtvgsrtygvakktqlfgvkvlddngsgqystiiagmdfvasdknn rncpkgvvaslslgggysssvnsaaarlqssgvmvavaagnnnadarnyspasepsvctv gasdrydrrssfsnygsvldifgpgtdilstwiggstrsisgtsmatphvaglaaylmtl gkttaasacryiadtankgdlsnipfgtvnllaynnyqa