Chains and heterogens:
PDB Chain Sequences:
>3pu1A (A:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpddst gglttnappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefd k
>3pu1B (B:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpddst gglttnappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefd k
>3pu1B (B:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpdttn appqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefdk
>3pu1C (C:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpddst gglttnappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefd k
>3pu1C (C:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytptnap pqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefdk
>3pu1D (D:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpddst gglttnappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefd k
>3pu1D (D:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpdltt nappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefdk
>3pu1E (E:) svtvkriidntvivpklpanedpveypadyfrkskeiplyinttkslsdlrgyvyqglks gnvsiihvnsylygalkdirgkldkdwssfginigkagdtigifdlvslkaldgvlpdgv sdasrtsaddkwlplyllglyrvgrtqmpeyrkklmdgltnqckmineqfeplvpegrdi fdvwgndsnytkivaavdmffhmfkkhecasfrygtivsrfkdcaalatfghlckitgms tedvttwilnrevademvqmmlpgqeidkadsympylidfglsskspyssvknpafhfwg qltalllrstrarnarqpddieytslttagllyayavgssadlaqqfcvgdnkytpddst gglttnappqgrdvvewlgwfedqnrkptpdmmqyakravmslqglrektigkyaksefd k