Stabilization of a G-Quadruplex from Unfolding by Replication Protein A Using Potassium and the Porphyrin TMPyP4

Replication protein A (RPA) plays an essential role in DNA replication by binding and unfolding non-canonical single-stranded DNA (ssDNA) structures. Of the six RPA ssDNA binding domains (labeled A-F), RPA-CDE selectively binds a G-quadruplex forming sequence (5′-TAGGGGAAGGGTTGGAGTGGGTT-3′ called Gq...

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Bibliographic Details
Main Authors: Aishwarya Prakash, Fabien Kieken, Luis A. Marky, Gloria E. O. Borgstahl
Format: Article
Language:English
Published: Hindawi Limited 2011-01-01
Series:Journal of Nucleic Acids
Online Access:http://dx.doi.org/10.4061/2011/529828