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Linkage map of cross-linked residues identified from BDRG cross-linking of the heterodimeric complex TFIIE. Black lines connect identified cross-linked lysine residues. Black ovals indicate lysine residues that were identified as BDRG-modified residues, suggesting that they are exposed to the cross-linker. White ovals indicate lysine residues that were not identified in a BDRG-modified form by MS analysis. The locations of previously described domains are also indicated.
