Chains and heterogens:
PDB Chain Sequences:
>1tthA (A:) anplyqkhiisindlsrddlnlvlataaklkanpqpellkhkviascffaastrtrlsfe tsmhrlgasvvgfsdsantslgkkgetladtisvistyvdaivmrhpqegaarlatefsg nvpvlnagdgsnqhptqtlldlftiqetqgrldnlhvamvgdlkygrtvhsltqalakfd gnrfyfiapdalampqyildmldekgiawslhssieevmaevdilymtrvqkerldpsey anvkaqfvlrasdlhnakanmkvlhplprvdeiatdvdktphawyfqqagngifarqall alvlnrdlvl
>1tthB (B:) mthdnklqveaikrgtvidhipaqigfkllslfkltetdqritiglnlpsgemgrkdlik ientflsedqvdqlalyapqatvnridnyevvgksrpslperidnvlvcpnsncishaep vsssfavrkrandialkckycekefshnvvlan
>1tthC (C:) anplyqkhiisindlsrddlnlvlataaklkanpqpellkhkviascffaastrtrlsfe tsmhrlgasvvgfsdsantslgkkgetladtisvistyvdaivmrhpqegaarlatefsg nvpvlnagdgsnqhptqtlldlftiqetqgrldnlhvamvgdlkygrtvhsltqalakfd gnrfyfiapdalampqyildmldekgiawslhssieevmaevdilymtrvqkerldpsey anvkaqfvlrasdlhnakanmkvlhplprvdeiatdvdktphawyfqqagngifarqall alvlnrdlvl
>1tthD (D:) mthdnklqveaikrgtvidhipaqigfkllslfkltetdqritiglnlpsgemgrkdlik ientflsedqvdqlalyapqatvnridnyevvgksrpslperidnvlvcpnsncishaep vsssfavrkrandialkckycekefshnvvlan