Chains and heterogens:
PDB Chain Sequences:
>1km5A (A:) vmnrlilamdlmnrddalrvtgevreyidtvkigyplvlsegmdiiaefrkrfgcriiad fkvanipetnekicratfkagadaiivhgfpgadsvraclnvaeemgrevflltemshpg aemfiqgaadeiarmgvdlgvknyvgpstrperlsrlreiigqdsflispgvgaqggdpg etlrfadaiivgrsiyladnpaaaaagiiesi