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. Author manuscript; available in PMC: 2020 Jan 31.
Published in final edited form as: Mol Cell. 2011 Aug 5;43(3):369–380. doi: 10.1016/j.molcel.2011.07.009

Figure 3. Scm3 Has a DNA Binding Domain with Preference for AT-Rich Sequences.

Figure 3.

(A) Map of domains on the Scm3 open reading frame.

(B) Binding of CEN3 DNA to Scm3(25–247), Scm3(1–113), Scm3(113–247), and Scm3(80–211), shown by EMSA and SYBR Green staining. Essentially full-length, His-tagged Scm3(25–247) or Scm3 subfragments (Figure S1) were mixed with CEN3 DNA (protein:DNA ratio rm = 0.26, 0.52, and 1.04) in 2M NaCl and diluted to 0.2M NaCl in a final volume of 50 μl. After incubation at room temperature for 30 min, samples were analyzed by EMSA and SYBR Green staining.

(C and D) Scm3(1–113) has preference for CEN over 601 DNA (see also Figure S3). Binding of a mixture of CEN and 601 DNA (1 μg each) to Scm3(1–113) (protein:DNA ratio rm = 0.52, 1.04, 2.08) was analyzed as in (A). Graph shows percent unbound DNA to Scm3(1–113):DNA ratios.