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Restriction Mapping Restriction Mapping: Double Digests Factor I – Single Cut Factor 2 – Single Cut Restriction Mapping: Double Digests Restriction Mapping: Double Digests Restriction Mapping: Double Digests Single BamHI EcoRI HindIII PstI 5600 5600 1600 4000 5600 BamHI EcoRI HindIII 400 5200 600 1000 4000 600 1000 4000 PstI 5600 400 5200 600 1000 4000 ScaI XbaI XhoI 1800 3800 100 900 1500 3100 2000 3600 2200 3400 500 900 1100 3100 2400 3200 1200 1600 2800 500 900 1100 2600 1400 1600 2600 1800 3800 100 900 1500 3100 2000 3600 ScaI 5600 900 1400 1600 1700 XbaI 900 1600 3100 900 1200 1600 1900 XhoI 5600 Uses of Restriction Mapping • Fingerprinting • Restriction Fragment Length Polymorphism Mapping Cloning pUC19 pUC19 Multiple Cloning Site Ligation AGCT PLASMID AGCT KAN TCGA TCGA Ligation DNA ligase AGCT PLASMID AGCT TCGA KAN TCGA Ligation AGCT PLASMID AGCT TCGA KAN TCGA Ligation AGCT PLASMID AGCT TCGA KAN TCGA Ligation pUC19 digest (50 ug/ul) Reaction 1 Reaction 2 Reaction 3 2 ul 2 ul 2 ul RDK1984 digest (70 ug/ul) 6 ul 10X ligase buffer 1 ul 1 ul water 7 ul 6 ul T4 DNA ligase 1 ul 1 ul 1 ul