Chains and heterogens:
PDB Chain Sequences:
>1bh3_ (-) mislngygrfglqyvedrgvgledtiissrlrinivgttetdqgvtfgaklrmqwddgda fagtagnaaqfwtsyngvtvsvgnvdtafdsvaltydsemgyeassfgdaqssffkynsk ydasgaldnyngiavtysisgvnlylsyvdpdqtvdsslvteefgiaadwsndmislaaa yttdaggivdndiafvgaaykfndagtvglnwydnglstagdqvtlygnyafgattvray vsdidragadtaygigadyqfaegvkvsgsvqsgfanetvadvgvrfdf