Article
Site-directed mutagenesis reveals roles for conserved amino acid residues in the hexameric DNA helicase DnaB from Bacillus stearothermophilus.
Nucleic acids research - 15 Sept 2002
Soultanas P, Wigley D B
Abstract excerpt
Site-directed mutagenesis studies on conserved amino acid residues within motifs H1, H1a, H2 and H3 of the hexameric replicative helicase DnaB from Bacillus stearothermophilus revealed specific functions associated with these residues. In particular, residues that coordinate a bound Mg2+ in the active site (T217 and D320) are important for the function of the enzyme but are not required for the formation of...
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