The conformational switch between these states is controlled by divalent metal binding in two electronegative zones arising from the lysine-to-glutamate substitution in the protein body proximal to the phosphate backbone of one DNA arm.
Thirteen novel fragmented IFPs were identified, all of which arose from backbone fission proximal to the interdomain linker.
The IFP variants arising from backbone cleavage proximal to the residues linking the PAS and GAF domains showed the highest whole cell fluorescence, similar to that observed with fragmented IFP discovered in the EK library.
For instance, in cyt c in particular, Bowman et al. demonstrated that strengthening the hydrogen bond between the proximal His ligand and a backbone carbonyl through peripheral mutations resulted in an almost 100 mV decrease in the reduction potential, attributable to increased imidazolate character.
Therefore, proximal residues interacting only through their backbone atoms were not selected for side chain flexibility.
Consequently, in contrast to mMD-2 bound mMD-2 boundthe "proximalipidcN rIVa of the diglucosamine backbone of tetraacylated mimetics 1 cannot be relocated in a "tilted" orientation (seen in Figure 3A, B).
We reason the different response to PRL of reporters is due to the limited proximal promoter regions utilized, the different backbones used for reporter construct, and cells lines used for reporter assay.
Vectors carrying 1 Kb fragments derived from the human FLT1 proximal promoter were cloned in pGL3 promoter backbone (Promega, Milan, Italy) as described previously [17].
Although threshold dissociation techniques mobilize protons prior to dissociation, current CAD mechanisms require a proton to be localized to the backbone NH or carbonyl directly proximal to the cleavage site.
At domain insertion sites, geometry of the polypeptide backbone was studied to assign spatially proximal residues to the ancestral domain.
