Kalbitzer H R, Neidig K P, Hengstenberg W
Department of Biophysics, Max-Planck-Institute for Medical Research, Heidelberg, Germany.
Biochemistry. 1991 Nov 19;30(46):11186-92. doi: 10.1021/bi00110a024.
Complete sequence-specific assignments of the 1H NMR spectrum of HPr protein from Staphylococcus aureus were obtained by two-dimensional NMR methods. Important secondary structure elements that can be derived from the observed nuclear Overhauser effects are a large antiparallel beta-pleated sheet consisting of four strands, A, B, C, D, a segment SAB consisting of an extended region around the active-center histidine (His-15) and an alpha-helix, a half-turn between strands B and C, a segment SCD which shows no typical secondary structure, and the alpha-helical, C-terminal segment S(term). These general structural features are similar to those found earlier in HPr proteins from different microorganisms such as Escherichia coli, Bacillus subtilis, and Streptococcus faecalis.
