>4ctsB (B:) SEQRES residues asstnlkdiladlipkeqariktfrqqhgntvvgqitvdmmyggmrgmkglvyetsvldp degirfrgysipecqkmlpkakggeeplpeglfwllvtgqipteeqvswlskewakraal pshvvtmldnfptnlhpmsqlsaaitalnsesnfarayaegihrtkyweliyedcmdlia klpcvaakiyrnlyregssigaidskldwshnftnmlgytdaqftelmrlyltihsdheg gnvsahtshlvgsalsdpylsfaaamnglagplhglanqevlvwltqlqkevgkdvsdek lrdyiwntlnsgrvvpgyghavlrktdprytcqrefalkhlphdpmfklvaqlykivpnv lleqgkaknpwpnvdahsgvllqyygmtemnyytvlfgvsralgvlaqliwsralgfple rpksmstdgliklvdsk