Chains and heterogens:
PDB Chain Sequences:
>2prn_ (-) mislngygrfglqyvedrgvgledtiissrlrinivgttetdqgvtfgaklrmqwddgda fagtagnaaqfwtsyngvtvsvgnvdtafdsvaltydswmgyeassfgdaqssffwynsk ydasgaldnyngiavtysisgvnlylsyvdpdqtvdsslvteefgiaadwsndmislaaa yttdaggivdndiafvgaaykfndagtvglnwydnglstagdqvtlygnyafgattvray vsdidragadtaygigadyqfaegvkvsgsvqsgfanetvadvgvrfdf