Chains and heterogens:
PDB Chain Sequences:
>1cw4A (A:) meskvvvpaqgkkitlqngklnvpenpiipyiegdgigvdvtpamlkvvdaavekaykge rkiswmeiytgekstqvygqdvwlpaetldlireyrvaikgplttpvgggirslnvalrq eldlyiclrpvryyqgtpspvkhpeltdmvifrensediyagiewkadsadaekvikflr eemgvkkirfpehcgigikpcseegtkrlvraaieyaiandrdsvtlvhmgnimkftega fkdwgyqlareefggelidggpwlkvknpntgkeivikdviadaflqqillrpaeydvia cmnlngdyisdalaaqvggigiapganigdecalfeathgtapkyagqdkvnpgsiilsa emmlrhmgwteaadlivkgmegainaktvtydferlmdgakllkcsefgdaiienm
>1cw4A (A:) eskvvvpaqgkkitlqngklnvpenpiipyiegdgigvdvtpamlkvvdaavekaykger kiswmeiytgekstqvygqdvwlpaetldlireyrvaikgplttpvgggirslnvalrqe ldlyiclrpvryyqgtpspvkhpeltdmvifrensediyagiewkadsadaekvikflre emgvkkirfpehcgigikpcseegtkrlvraaieyaiandrdsvtlvhmgnimkftegaf kdwgyqlareefggelidggpwlkvknpntgkeivikdviadaflqqillrpaeydviac mnlngdyisdalaaqvggigiapganigdecalfeathgtapkyagqdkvnpgsiilsae mmlrhmgwteaadlivkgmegainaktvtydferlmdgakllkcsefgdaiienm