Chains and heterogens:
PDB Chain Sequences:
>1b6bA (A:) rrhtlpanefrcltpedaagvfeiereafisvsgncplnldevqhfltlcpelslgwfve grlvafiigslwdeerltqeslalhrprghsahlhalavhrsfrqqgkgsvllwrylhhv gaqpavrravlmcedalvpfyqrfgfhpagpcaivvgsltftemhcslrghaal
>1b6bA (A:) anefrcltpedaagvfeiereafisvsgncplnldevqhfltlcpelslgwfvegrlvaf iigslwdeerltqeslalhrprghsahlhalavhrsfrqqgkgsvllwrylhhvgaqpav rravlmcedalvpfyqrfgfhpagpcaivvgsltftemhcslrghaal
>1b6bB (B:) rrhtlpanefrcltpedaagvfeiereafisvsgncplnldevqhfltlcpelslgwfve grlvafiigslwdeerltqeslalhrprghsahlhalavhrsfrqqgkgsvllwrylhhv gaqpavrravlmcedalvpfyqrfgfhpagpcaivvgsltftemhcslrghaal
>1b6bB (B:) nefrcltpedaagvfeiereafdevqhfltlcpelslgwfvegrlvafiigslwdeerlt qeslalhrprghsahlhalavhrsfrqqgkgsvllwrylhhvgaqpavrravlmcedalv pfyqrfgfhpagpcaivvgsltftemhcslrghaal