Chains and heterogens:
PDB Chain Sequences:
>1bf8_ (-) gvalgatrviypagqkqeqlavtnndenstyliqswvenadgvkdgrfivtpplfamkgk kentlrildatnnqlpqdreslfwmnvkaipsmdkskltentlqlaiisriklyyrpakl alppdqaaeklrfrrsansltlinptpyyltvtelnagtrvlenalvppmgestvklpsd agsnityrtindygaltpkmtgvme