A specific region in the N terminus of a replication initiation protein of plasmid RK2 is required for recruitment of Pseudomonas aeruginosa DnaB helicase to the plasmid origin.

Abstract excerpt

Broad host range plasmid RK2 encodes two versions of its essential replication initiation protein, TrfA, using in-frame translational starts spaced 97 amino acids apart. The smaller protein, TrfA-33, is sufficient for plasmid replication in many bacterial hosts. Efficient replication in Pseudomonas aeruginosa, however, specifically requires the larger TrfA-44 protein. With the aim of identifying sequences of...

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