Abstract
AbstractNMR spectroscopy is used to detect site‐specific intermolecular short‐range contacts in a membrane–protein–chaperone complex. This is achieved by an “orthogonal” isotope‐labeling scheme that permits the unambiguous detection of intermolecular NOEs between the well‐folded chaperone and the unfolded substrate ensemble. The residues involved in these contacts are part of the chaperone–substrate contact interface. The approach is demonstrated for the 70 kDa bacterial Skp‐tOmpA complex.
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