2K7R:
reference: A novel zinc-binding fold in the helicase interaction domain of the Bacillus subtilis DnaI helicase loader., Loscha KV, Jaudzems K, Ioannou C, Su XC, Hill FR, Otting G, Dixon NE, Liepinsh E, Nucleic Acids Res. 2009 Mar 2. PMID: 19255093

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