Chains and heterogens:
PDB Chain Sequences:
>1dru_ (-) anirvaiagaggrmgrqliqaalalegvqlgaaleregssllgsdagelagagktgvtvq ssldavkddfdvfidftrpegtlnhlafcrqhgkgmvigttgfdeagkqairdaaadiai vfaanfsvgvnvmlkllekaakvmgdytdieiieahhrhkvdapsgtalamgeaiahald kdlkdcavysreghtgervpgtigfatvragdivgehtamfadigerleithkassrmtf angavrsalwlsgkesglfdmrdvldlnnl