Chains and heterogens:
PDB Chain Sequences:
>1pnrA (A:) tikdvakranvstttvshvinktrfvaeetrnavwaaikelhyspsavarslkvnhtksi gllatsseaayfaeiieavekncfqkgytlilgnawnnlekqraylsmmaqkrvdgllvm cseypepllamleeyrhipmvvmdwgeakadftdavidnafeggymagrylierghreig vipgplerntgagrlagfmkameeamikvpeswivqgdfepesgyramqqilsqphrpta vfcggdimamgalcaademglrvpqdvsligydnvrnaryftpalttihqpkdslgetaf nmlldrivnkreepqsievhprlierrsvadgpfrdyr