Chains and heterogens:
PDB Chain Sequences:
>1tv7A (A:) mveqikdklgrpirdlrlsvtdrcnfrcdycmpkevfgddfvflpknelltfdemariak vyaelgvkkiritggeplmrrdldvliaklnqidgiediglttnglllkkhgqklydagl rrinvsldaiddtlfqsinnrnikattileqidyatsiglnvkvnvviqkginddqiipm leyfkdkhieirfiefmdvgndngwdfskvvtkdemltmieqhfeidpvepkyfgevaky yrhkdngvqfglitsvsqsfcstctrarlssdgkfygclfatvdgfnvkafirsgvtdee lkeqfkalwqirddrysdertaqtvanrqrkkinmnyigg
>1tv7A (A:) eqikdklgrpirdlrlsvtdrcnfrcdycmpkevfgddfvflpknelltfdemariakvy aelgvkkiritggeplmrrdldvliaklnqidgiediglttnglllkkhgqklydaglrr invsldaiddtlfqsinnrnikattileqidyatsiglnvkvnvviqkginddqiipmle yfkdkhieirfiefmdvgndngwdfskvvtkdemltmieqhfeidpvepkyfgevakyyr hkdngvqfglitsvsqsfcstctrarlssdgkfygclfatvdgfnvkafirsgvtdeelk eqfkalwqirddrysdertaqtvanrq
>1tv7B (B:) mveqikdklgrpirdlrlsvtdrcnfrcdycmpkevfgddfvflpknelltfdemariak vyaelgvkkiritggeplmrrdldvliaklnqidgiediglttnglllkkhgqklydagl rrinvsldaiddtlfqsinnrnikattileqidyatsiglnvkvnvviqkginddqiipm leyfkdkhieirfiefmdvgndngwdfskvvtkdemltmieqhfeidpvepkyfgevaky yrhkdngvqfglitsvsqsfcstctrarlssdgkfygclfatvdgfnvkafirsgvtdee lkeqfkalwqirddrysdertaqtvanrqrkkinmnyigg
>1tv7B (B:) qikdklgrpirdlrlsvtdrcnfrcdycmpkevfgddfvflpknelltfdemariakvya elgvkkiritggeplmrrdldvliaklnqidgiediglttnglllkkhgqklydaglrri nvsldaiddtlfqsinnrnikattileqidyatsiglnvkvnvviqkginddqiipmley fkdkhieirfiefmdvgndngwdfskvvtkdemltmieqhfeidpvepkyfgevakyyrh kdngvqfglitsvsqsfcstctrarlssdgkfygclfatvdgfnvkafirsgvtdeelke qfkalwqirddrysdertaqtvanrq