Progressive structural transitions within Mu transpositional complexes.

Abstract excerpt

Assembly of the Mu transpososome is dependent on specific binding sites for the MuA transposase near the ends of the phage genome. MuA also contacts terminal nucleotides but only upon transpososome assembly, and base-specific recognition of the terminal nucleotides is critical for assembly. We show that Mu ends lacking the terminal 5 bp can form transpososomes, while longer DNA substrates with mutated terminal...

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