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Srs2R3 is defective in both helicase activity and DNA binding. (A) Kinetics of helicase activity of wild-type and mutated Srs2. (B) Quantification of experiments showed in (A). Each point represents the average of three independent assays. Error bars show the standard deviation. (C) Srs2R3 binds forked DNA less efficiently than Srs2 as observed by gel shift assay.
