Chains and heterogens:
PDB Chain Sequences:
>1ctsA (A:) asstnlkdiladlipkeqariktfrqqhgntvvgqitvdmmyggmrgmkglvyetsvldp degirfrgysipecqkmlpkakggeeplpeglfwllvtgqipteeqvswlskewakraal pshvvtmldnfptnlhpmsqlsaaitalnsesnfarayaegihrtkyweliyedcmdlia klpcvaakiyrnlyregssigaidskldwshnftnmlgytdaqftelmrlyltihsdheg gnvsahtshlvgsalsdpylsfaaamnglagplhglanqevlvwltqlqkevgkdvsdek lrdyiwntlnsgrvvpgyghavlrktdprytcqrefalkhlphdpmfklvaqlykivpnv lleqgkaknpwpnvdahsgvllqyygmtemnyytvlfgvsralgvlaqliwsralgfple rpksmstdgliklvdsk