3GXV:
reference: Three-dimensional structure of N-terminal domain of DnaB helicase and helicase-primase interactions in Helicobacter pylori., Kashav T, Nitharwal R, Abdulrehman SA, Gabdoulkhakov A, Saenger W, Dhar SK, Gourinath S, PLoS One. 2009 Oct 20;4(10):e7515. PMID: 19841750

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