Chains and heterogens:
PDB Chain Sequences:
>2viuA (A:) qdlpgndnstatlclghhavpngtlvktitddqievtnatelvqssstgkicnnphrild gidctlidallgdphcdvfqnetwdlfverskafsncypydvpdyaslrslvassgtlef itegftwtgviqnggsnackrgpgsgffsrlnwltksgstypvlnvtmpnndnfdklyiw gihhpstnqeqtslyvqasgrvtvstrrsqqtiipnigsrpwvrglssrisiywtivkpg dvlvinsngnliaprgyfkmrtgkssimrsdapidtcisecitpngsipndkpfqnvnki tygacpkyvkqntlklatgmrnvpekqt
>2viuA (A:) statlclghhavpngtlvktitddqievtnatelvqssstgkicnnphrildgidctlid allgdphcdvfqnetwdlfverskafsncypydvpdyaslrslvassgtlefitegftwt gviqnggsnackrgpgsgffsrlnwltksgstypvlnvtmpnndnfdklyiwgihhpstn qeqtslyvqasgrvtvstrrsqqtiipnigsrpwvrglssrisiywtivkpgdvlvinsn gnliaprgyfkmrtgkssimrsdapidtcisecitpngsipndkpfqnvnkitygacpky vkqntlklatgmrnvpekqt
>2viuB (B:) glfgaiagfiengwegmidgwygfrhqnsegtgqaadlkstqaaidqingklnrviektn ekfhqiekefsevegriqdlekyvedtkidlwsynaellvalenqhtidltdsemnklfe ktrrqlrenaeemgngcfkiyhkcdnaciesirngtydhdvyrdealnnrfqikg