Chains and heterogens:
PDB Chain Sequences:
>3nr2A (A:) masmtggqqmgrdpnsafykremfdpaekykmdhrrrgialifnherffwhltlperrgt cadrdnltrrfsdlgfevkcfndlkveelllkihevstvshadadcfvcvflshgegnhi yaydakieiqtltglfkgdkchslvgkpkifiiqaargnqhdvpvipldvvdnqtekldt nitevdaasvytlpagadflmcysvaegyyshretvngswyiqdlcemlgkygsslefte lltlvnrkvsqrrvdfckdpsaigkkqvpcfasmltkklhffpksnlehhhhhh
>3nr2A (A:) fdpaekykmdhrrrgialifnherffwhltlperrgtcadrdnltrrfsdlgfevkcfnd lkveelllkihevstvshadadcfvcvflshgegnhiyaydakieiqtltglfkgdkchs lvgkpkifiiqaargntnitevdaasvytlpagadflmcysvaegyyshretvngswyiq dlcemlgkygssleftelltlvnrkvsqrrvgkkqvpcfasmltkklhffpks
>3nr2B (B:) masmtggqqmgrdpnsafykremfdpaekykmdhrrrgialifnherffwhltlperrgt cadrdnltrrfsdlgfevkcfndlkveelllkihevstvshadadcfvcvflshgegnhi yaydakieiqtltglfkgdkchslvgkpkifiiqaargnqhdvpvipldvvdnqtekldt nitevdaasvytlpagadflmcysvaegyyshretvngswyiqdlcemlgkygsslefte lltlvnrkvsqrrvdfckdpsaigkkqvpcfasmltkklhffpksnlehhhhhh
>3nr2B (B:) fdpaekykmdhrrrgialifnherffwhltlperrgtcadrdnltrrfsdlgfevkcfnd lkveelllkihevstvshadadcfvcvflshgegnhiyaydakieiqtltglfkgdkchs lvgkpkifiiqaargntnitevdaasvytlpagadflmcysvaegyyshretvngswyiq dlcemlgkygssleftelltlvnrkvsqrrkkqvpcfasmltkklhffpk