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Autoradiograms of SDS-10% PAGE showing the mapping of the surface of RepA that interacts with DnaB. Lane 1, DnaB input. Lane 2, DnaB binding to full-length immobilized RepA. Lane 3, control GST matrix. Lane 4, immobilized peptide c1-c142. Lane 5, N-terminal c1-c63. Lane 6, C-terminal c143-c316. Lane 7, N-terminal c64-c142 peptide of RepA.
