CMCT chemical modification was performed on intact 70S E. coli ribosomes in the absence and presence of bound drug.
Binding was performed in binding buffer (10 mM HEPES, 10 mM MgCl2, 60 mM NH4Cl) at 37 °C for 30 min. DMS chemical modification was performed on intact 70S E. coli ribosomes in the absence and presence of bound drug.
While the ordering of the helix in the presence of bound hydrophobic molecules can be explained by hydrophobic interactions between the bound molecules and protein residues, such as leucine-358, there are no direct contacts between the reduced flavin and helix that can easily explain the ordering of the helix upon change in the redox state of the cofactor and its movement to the IN conformation.
Interestingly, both of these inhibitors bind to the substrate arginine-binding cavity of PRMT4 and require the presence of bound cofactor SAH.
The binding of C1q to CS-A was independent of the presence of bound IgG, since depletion of IgG from serum did not change the amounts of C1q that bound to CS-Sepharose.
These results indicate that the presence of bound SA prevented further primer extension, which may be due to steric collision between RT and the attached SA, or bound SA may introduce a conformational change into the P/T that prevents RT from moving forward.
In this context, the large number of proteins bound to the calcium granulations obtained from both HS and FBS, along with the earlier spectroscopy data suggesting an abundant presence of bound proteins, indicate that the apatite formation seen here corresponds probably to a process of "heterogeneous nucleation"—the formation of apatite crystals on a protein template [83].
In the presence of bound substrate, the GroEL mutation C138W near the equatorial-intermediate domain hinge region produces a complex with both substrate protein and GroES bound, and this complex is arrested in ATPase and folding activities (Kawata et al., 1999; Miyazaki et al., 2002).
The presence of bound IgG antibodies was detected by adding TMB substrate and measuring at an absorbance of 450 nm with a reference wavelength of 570 nm.
The presence of bound states affects the equation of state, absorption coefficients, and polarizability tensor of a strongly magnetized plasma.
Dynamic potentiometry proved useful as a rapid screening and characterization procedure for both blank electrodes and the presence of bound hydrogenase post-immobilization.
