Chains and heterogens:
PDB Chain Sequences:
>1swnA (A:) aeagitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgta lgwtvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftk vkpsaas
>1swnA (A:) gitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgtalgw tvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftkvkp
>1swnB (B:) aeagitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgta lgwtvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftk vkpsaas
>1swnB (B:) gitgtwynqlgstfivtagadgaltgtyenaesryvltgrydsapatdgsgtalgwtvaw knnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftkv
>1swnC (C:) aeagitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgta lgwtvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftk vkpsaas
>1swnC (C:) gitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgtalgw tvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftkv
>1swnD (D:) aeagitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgta lgwtvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftk vkpsaas
>1swnD (D:) gitgtwynqlgstfivtagadgaltgtyesavgnaesryvltgrydsapatdgsgtalgw tvawknnyrnahsattwsgqyvggaearintqflltsgtteanawkstlvghdtftkv