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. 2011 Jul 29;6(7):e22986. doi: 10.1371/journal.pone.0022986

Figure 4. The DNA damage checkpoint mediators Claspin, Timeless, and Tipin preferentially bind branched DNA.

Figure 4

The association of each of the indicated purified proteins with no DNA (beads alone), single-stranded (ss), double-stranded (ds), and branched, replication fork-like (fork) DNA was analyzed by SDS-PAGE and immunoblotting. Each of the following proteins was analyzed for binding to each DNA structure: (A) Claspin, (B) Timeless-Tipin (Tim-Tipin) complex, (C) Timeless, and (D) Tipin. Reactions were carried out as described in the Methods section.