¹H, ¹³C and ¹⁵N resonance assignments and peptide binding site chemical shift perturbation mapping for the Escherichia coli redox enzyme chaperone DmsD

Abstract

Herein are reported the mainchain (1)H, (13)C and (15)N chemical shift assignments and amide (15)N relaxation data for Escherichia coli DmsD, a 23.3 kDa protein responsible for the correct folding and translocation of the dimethyl sulfoxide reductase enzyme complex. In addition, the observed amide chemical shift perturbations resulting from complex formation with the reductase subunit DmsA leader peptide support a model in which the 44 residue peptide makes extensive contacts across the surface of the DmsD protein.