Chains and heterogens:
PDB Chain Sequences:
>6pnvA (A:) snavrieitqgvdsarpigvvpfkwagpgaapediggivaadlrnsgkfnpldrsrlpqq pataqevqptawsalgidavvvgqvtpnpdgsynvayqlvdtggapgtvlaqnsykvnkq wlryaghtasdevfekltgikgafrtriayvvqtnggqfpyelrvsdydgynqfvvhrsp qplmspawspdgsklayvtfesgrsalviqtlangavrqvasfprhngapafspdgtkla falsktgslnlyvmdlasgqirqitdgrsnnteptwfpdsqtlaftsdqagrpqvykmni nggaaqritwegsqnqdadvssdgkfmvmvssnngqqhiakqdlvtggvqvlsstfldet pslapngtmviysssqgmgsvlnlvstdgrfkarlpatdgqvkspawspyl