Chains and heterogens:
PDB Chain Sequences:
>1bhs_ (-) artvvlitgcssgiglhlavrlasdpsqsfkvyatlrdlktqgrlweaaralacppgsle tlqldvrdsksvaaarervtegrvdvlvcnaglgllgplealgedavasvldvnvvgtvr mlqaflpdmkrrgsgrvlvtgsvgglmglpfndvycaskfaleglceslavlllpfgvhl sliecgpvhtafmekvlgspeevldrtdihtfhrfyqylahskqvfreaaqnpeevaevf ltalrapkptlryftterflpllrmrlddpsgsnyvtamhrevf