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. 2009 Dec 6;38(4):1149–1162. doi: 10.1093/nar/gkp1131

Figure 6.

Figure 6.

WRN stimulates pol δ independently of its helicase or exonuclease activities. (A) Reactions contained pol δ/PCNA alone or with, wild-type WRN, or exonuclease-dead WRN (X-WRN) as indicated and ATPγS was included, as shown, to inhibit helicase function. Reactions proceeded for 2, 10 and 30 mins and contained 100 fmol template DNA, 2 pmol pol δ and 100 fmol WRN or X-WRN, as indicated. (B) Replication extension by WRN fragments. 1, GST control, 2. WRN500–946, or 3. WRN949–1432 were added (100 fmol) to pol δ/PCNA reactions. Gels in ‘B’ are cropped prior to the start of the fragile site sequence. Dashed lines: boundary of CFS insert.