Chains and heterogens:
PDB Chain Sequences:
>1kwsA (A:) mtiyvvtptyarlvqkaelvrlsqtlslvprlhwllvedaegptplvsgllaasgllfth lvvltpkaqrlregepgwvhprgveqrnkaldwlrgrggavggekdppppgtqgvvyfad ddntysrelfeemrwtrgvsvwpvglvgglrfegpqvqdgrvvgfhtawepsrpfpvdma gfavalpllldkpnaqfdstaprghlessllshlvdpkdlepraanctrvlvwhtrtekp kmkqeeqlqrqgrgsdpaiev
>1kwsA (A:) mtiyvvtptyarlvqkaelvrlsqtlslvprlhwllvedaegptplvsgllaasgllfth lvvltpwvhprgveqrnkaldwlrgrggavggekdppppgtqgvvyfadddntysrelfe emrwtrgvsvwpvglvgglrfegpqvqdgrvvgfhtawepsrpfpvdmagfavalpllld kpnaqfdstaprghlessllshlvdpkdlepraanctrvlvwhtrtekpkmkqeeqlqrq grgsdpaiev
>1kwsB (B:) mtiyvvtptyarlvqkaelvrlsqtlslvprlhwllvedaegptplvsgllaasgllfth lvvltpkaqrlregepgwvhprgveqrnkaldwlrgrggavggekdppppgtqgvvyfad ddntysrelfeemrwtrgvsvwpvglvgglrfegpqvqdgrvvgfhtawepsrpfpvdma gfavalpllldkpnaqfdstaprghlessllshlvdpkdlepraanctrvlvwhtrtekp kmkqeeqlqrqgrgsdpaiev
>1kwsB (B:) mtiyvvtptyarlvqkaelvrlsqtlslvprlhwllvedaegptplvsgllaasgllfth lvvltphprgveqrnkaldwlrgrggavggekdppppgtqgvvyfadddntysrelfeem rwtrgvsvwpvglvgglrfegpqvqdgrvvgfhtawerpfpvdmagfavalpllldkpna qfdstapghlessllshlvdpkdlepraanctrvlvwhtrtekpkmkqeeqlqrqgrgsd paiev