Chains and heterogens:
PDB Chain Sequences:
>1sg2A (A:) aswshpqfekgaadkiaivnmgslfqqvaqktgvsntlenefkgraselqrmetdlqakm kklqsmkagsdrtklekdvmaqrqtfaqkaqafeqdrarrsneergklvtriqtavksva nsqdidlvvdanavaynssdvkditadvlkqvk
>1sg2A (A:) adkiaivnmgslfqqvaqktgvsntlenefkgraselqrmetdlqakmkklqsmkagsdr tklekdvmaqrqtfaqkaqafeqdrarrsneergklvtriqtavksvansqdidlvvdan avaynssdvkditadvlkqvk
>1sg2B (B:) aswshpqfekgaadkiaivnmgslfqqvaqktgvsntlenefkgraselqrmetdlqakm kklqsmkagsdrtklekdvmaqrqtfaqkaqafeqdrarrsneergklvtriqtavksva nsqdidlvvdanavaynssdvkditadvlkqvk
>1sg2B (B:) gaadkiaivnmgslfqqvaqktgvsntlenefkgraselqrmaqkaqafeqdrarrsnee rgklvtriqtavksvansqdidlvvdanavaynssdvkditadvlkqvk
>1sg2C (C:) aswshpqfekgaadkiaivnmgslfqqvaqktgvsntlenefkgraselqrmetdlqakm kklqsmkagsdrtklekdvmaqrqtfaqkaqafeqdrarrsneergklvtriqtavksva nsqdidlvvdanavaynssdvkditadvlkqvk
>1sg2C (C:) aadkiaivnmgslfqqvaqktgvsntlenefkgraselqrmetdlqakmkklqsmkagsd rtklekdvmaqrqtfaqkaqafeqdrarrsneergklvtriqtavksvansqdidlvvda navaynssdvkditadvlkqvk