Chains and heterogens:
PDB Chain Sequences:
>1fl5A (A:) elvmtqtplslpvslgdqasiscrssqsivhsngntylewylqkpgqspklliykvsnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqgshvprtfgggtkleikrtvaapsv fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl sstltlskadyekhkvyacevthqglsspvtksfnrg
>1fl5B (B:) qvqlvesggglvqpggslrlscatsgftftdyymswvrqppgkalewlgfirnkangytt eysasvkgrftisrdnsqsilylqmntlraedsatyycardgsyamdywgqgtsvtvssa stkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssg lyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvep
>1fl5H (H:) qvqlvesggglvqpggslrlscatsgftftdyymswvrqppgkalewlgfirnkangytt eysasvkgrftisrdnsqsilylqmntlraedsatyycardgsyamdywgqgtsvtvssa stkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssg lyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvep
>1fl5L (L:) elvmtqtplslpvslgdqasiscrssqsivhsngntylewylqkpgqspklliykvsnrf sgvpdrfsgsgsgtdftlkisrveaedlgvyycfqgshvprtfgggtkleikrtvaapsv fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl sstltlskadyekhkvyacevthqglsspvtksfnrg