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Identification of a new motif required for the 3'-5' exonuclease activity of Escherichia coli DNA polymerase I (Klenow fragment): the RRRY motif is necessary for the binding of single-stranded DNA substrate and the template strand of the mismatched duplex.
Kukreti P, Singh K, Ketkar A, Modak MJ. Kukreti P, et al. Among authors: modak mj. J Biol Chem. 2008 Jun 27;283(26):17979-90. doi: 10.1074/jbc.M801053200. Epub 2008 Apr 29. J Biol Chem. 2008. PMID: 18448432 Free PMC article.