Chains and heterogens:
PDB Chain Sequences:
>1fnsA (A:) mycsrlldlvflldgssrlseaefevlkafvvdmmerlrvsqkwvrvavveyhdgshayi glkdrkrpselrriasqvkyagsqvastsevlkytlfqifskidrpeasrialllmasqe pqrmsrnfvryvqglkkkkvivipvgigphanlkqirliekqapenkafvlssvdeleqq rdeivsylcdlapeap
>1fnsH (H:) qvqlkesgpglvapsqslsitctvsgfsltdygvdwvrqppgkglewlgmiwgdgstdyn salksrlsitkdnsksqvflkmnslqtddtaryycvrdpadygnydyaldywgqgtsvtv ssakttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlq sdlytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdcg
>1fnsH (H:) qvqlkesgpglvapsqslsitctvsgfsltdygvdwvrqppgkglewlgmiwgdgstdyn salksrlsitkdnsksqvflkmnslqtddtaryycvrdpadygnydyaldywgqgtsvtv ssakttppsvyplapgssmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlyt lsssvtvpsstwpsetvtcnvahpasstkvdkkivprdcg
>1fnsL (L:) diqmtqspsslsaslgdrvtiscsasqdinkylnwyqqkpdgavkllifytsslhsgvps rfsgsgsgtdysltisnlepediatyycqqyeklpwtfgggtklevkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec