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. 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. J Biol Chem. 2008 Jun 27; 283(26):17979-90.