Chains and heterogens:
PDB Chain Sequences:
>4ctsA (A:) asstnlkdiladlipkeqariktfrqqhgntvvgqitvdmmyggmrgmkglvyetsvldp degirfrgysipecqkmlpkakggeeplpeglfwllvtgqipteeqvswlskewakraal pshvvtmldnfptnlhpmsqlsaaitalnsesnfarayaegihrtkyweliyedcmdlia klpcvaakiyrnlyregssigaidskldwshnftnmlgytdaqftelmrlyltihsdheg gnvsahtshlvgsalsdpylsfaaamnglagplhglanqevlvwltqlqkevgkdvsdek lrdyiwntlnsgrvvpgyghavlrktdprytcqrefalkhlphdpmfklvaqlykivpnv lleqgkaknpwpnvdahsgvllqyygmtemnyytvlfgvsralgvlaqliwsralgfple rpksmstdgliklvdsk
>4ctsB (B:) asstnlkdiladlipkeqariktfrqqhgntvvgqitvdmmyggmrgmkglvyetsvldp degirfrgysipecqkmlpkakggeeplpeglfwllvtgqipteeqvswlskewakraal pshvvtmldnfptnlhpmsqlsaaitalnsesnfarayaegihrtkyweliyedcmdlia klpcvaakiyrnlyregssigaidskldwshnftnmlgytdaqftelmrlyltihsdheg gnvsahtshlvgsalsdpylsfaaamnglagplhglanqevlvwltqlqkevgkdvsdek lrdyiwntlnsgrvvpgyghavlrktdprytcqrefalkhlphdpmfklvaqlykivpnv lleqgkaknpwpnvdahsgvllqyygmtemnyytvlfgvsralgvlaqliwsralgfple rpksmstdgliklvdsk