Solution structure and NH exchange studies of the MutT pyrophosphohydrolase complexed with Mg(2+) and 8-oxo-dGMP, a tightly bound product.
Massiah, M.A., Saraswat, V., Azurmendi, H.F., Mildvan, A.S.(2003) Biochemistry 42: 10140-10154
- PubMed: 12939141 
- DOI: https://doi.org/10.1021/bi030105p
- Primary Citation of Related Structures:  
1PPX, 1PUN, 1PUQ, 1PUS - PubMed Abstract: 
To learn the structural basis for the unusually tight binding of 8-oxo-nucleotides to the MutT pyrophosphohydrolase of Escherichia coli (129 residues), the solution structure of the MutT-Mg(2+)-8-oxo-dGMP product complex (K(D) = 52 nM) was determined by standard 3-D heteronuclear NMR methods. Using 1746 NOEs (13.5 NOEs/residue) and 186 phi and psi values derived from backbone (15)N, Calpha, Halpha, and Cbeta chemical shifts, 20 converged structures were computed with NOE violations
Organizational Affiliation: 
Department of Biological Chemistry, The Johns Hopkins School of Medicine, 725 North Wolfe Street, Baltimore, Maryland 21205-2185, USA.