Chains and heterogens:
PDB Chain Sequences:
>1gt2A (A:) tkvsvvgaagtvgaaagynialrdiadevvfvdipdkeddtvgqaadtnhgiaydsntrv rqggyedtagsdvvvitagiprqpgqtridlagdnapimediqssldehnddyislttsn pvdllnrhlyeagdrsreqvigfggrldsarfryvlseefdapvqnvegtilgehgdaqv pvfskvsvdgtdpefsgdekeqllgdlqesamdvierkgatewgpargvahmveailhdt gevlpasvklegefghedtafgvpvslgsngveeivewdlddyeqdlmadaaeklsdqyd kis
>1gt2B (B:) tkvsvvgaagtvgaaagynialrdiadevvfvdipdkeddtvgqaadtnhgiaydsntrv rqggyedtagsdvvvitagiprqpgqtridlagdnapimediqssldehnddyislttsn pvdllnrhlyeagdrsreqvigfggrldsarfryvlseefdapvqnvegtilgehgdaqv pvfskvsvdgtdpefsgdekeqllgdlqesamdvierkgatewgpargvahmveailhdt gevlpasvklegefghedtafgvpvslgsngveeivewdlddyeqdlmadaaeklsdqyd kis