Chains and heterogens:
PDB Chain Sequences:
>2xbbA (A:) gplgsrdykrkyeffrrklkkqndipnkfemklrratvledsyrrimgvkradflkarlw iefdgekgldyggvarewffliskemfnpyyglfeysatdnytlqinpnsglcnedhlsy fkfigrvagmavyhgklldgffirpfykmmlhkpitlhdmesvdseyynslrwilendpt eldlrfiideelfgqthqhelknggseivvtnknkkeyiylviqwrfvnriqkqmaafke gffelipqdlikifdenelellmcglgdvdvndwrehtkykngysanhqviqwfwkavlm mdsekrirllqfvtgtsrvpmngfaelygsngpqsftveqwgtpeklprahtcfnrldlp pyesfeelwdklqmaientqgfdgvd
>2xbbA (A:) rdykrkyeffrrklkkqndipnkfemklrratvledsyrrimgvkradflkarlwiefdg ekgldyggvarewffliskemfnpyyglfeysatdnytlqinpnsglcnedhlsyfkfig rvagmavyhgklldgffirpfykmmlhkpitlhdmesvdseyynslrwilendpteldlr fiideelfgqthqhelknggseivvtnknkkeyiylviqwrfvnriqkqmaafkegffel ipqdlikifdenelellmcglgdvdvndwrehtkykngysanhqviqwfwkavlmmdsek rirllqfvtgtsrvpmngfaelygsngpqsftveqwgtpeklprahtcfnrldlppyesf eelwdklqmaientqg
>2xbbB (B:) gplgsrdykrkyeffrrklkkqndipnkfemklrratvledsyrrimgvkradflkarlw iefdgekgldyggvarewffliskemfnpyyglfeysatdnytlqinpnsglcnedhlsy fkfigrvagmavyhgklldgffirpfykmmlhkpitlhdmesvdseyynslrwilendpt eldlrfiideelfgqthqhelknggseivvtnknkkeyiylviqwrfvnriqkqmaafke gffelipqdlikifdenelellmcglgdvdvndwrehtkykngysanhqviqwfwkavlm mdsekrirllqfvtgtsrvpmngfaelygsngpqsftveqwgtpeklprahtcfnrldlp pyesfeelwdklqmaientqgfdgvd
>2xbbB (B:) rdykrkyeffrrklkkqndipnkfemklrratvledsyrrimgvkradflkarlwiefdg ekgldyggvarewffliskemfnpyyglfeysatdnytlqinpnsglcnedhlsyfkfig rvagmavyhgklldgffirpfykmmlhkpitlhdmesvdseyynslrwilendpteldlr fiideelfgqthqhelknggseivvtnknkkeyiylviqwrfvnriqkqmaafkegffel ipqdlikifdenelellmcglgdvdvndwrehtkykngysanhqviqwfwkavlmmdsek rirllqfvtgtsrvpmngfaelygsngpqsftveqwgtpeklprahtcfnrldlppyesf eelwdklqmaientqg
>2xbbC (C:) mqifvktltgktitlevepsdtienvkakiqdkegippdqqrlifagkqledgrtlsdyn iqkestlhlvlrlrgg
>2xbbD (D:) mqifvktltgktitlevepsdtienvkakiqdkegippdqqrlifagkqledgrtlsdyn iqkestlhlvlrlrgg