Chains and heterogens:
PDB Chain Sequences:
>1fwcA (A:) meltprekdklllftaalvaerrlarglklnypesvalisafimegardgksvaslmeeg rhvltreqvmegvpemipdiqveatfpdgsklvtvhnpii
>1fwcB (B:) mipgeyhvkpgqialntgratcrvvvenhgdrpiqvgshyhfaevnpalkfdrqqaagyr lnipagtavrfepgqkrevelvafaghravfgfrgevmgpl
>1fwcC (C:) snisrqayadmfgptvgdkvrladtelwieveddlttygeevkfgggkvirdgmgqgqml aadcvdlvltnalivdhwgivkadigvkdgrifaigkagnpdiqpnvtipigaateviaa egkivtaggidthihwicpqqaeealvsgvttmvgggtgpaagthattctpgpwyisrml qaadslpvnigllgkgnvsqpdalreqvaagviglkihedwgatpaaidcaltvademdi qvalhsdtlnesgfvedtlaaiggrtihtfhtegaggghapdiitacahpnilpsstnpt lpytlntidehldmlmvahhldpdiaedvafaesrirretiaaedvlhdlgafsltssds qamgrvgevilrtwqvahrmkvqrgalaeetgdndnfrvkryiakytinpalthgiahev gsievgkladlvvwspaffgvkpatvikggmiaiapmgdinasiptpqpvhyrpmfgalg sarhhcrltflsqaaaangvaerlnlrsaiavvkgcrtvqkadmvhnslqpnitvdaqty evrvdgelitsepadvlpmaqryflf