The engineered extra disulfide bond in the presumed "protein X -binding site is accommodated with slight, strictly localized conformational changes.
The selective and potent D2 receptor agonist - R -2-OH-NPA was positioned in the binding site during the construction of the receptor model and thereby induced a conformational change of the receptor, where the binding site is shaped to accommodate an agonist.
Conversely, the 3-OCS-CoA substrate could be readily docked into the ChsE4 site, demonstrating that the ChsE4 binding site is sufficiently large to accommodate a steroid structure.
In the case of H1N1 neuraminidase, the binding site is so large that it can readily accommodate more than one ligand.
13 There was a complete loss of activity of compound 23, indicating that the binding site is rather rigid in that area and does not accommodate substituents of the amino group.
Away from this site, the binding site is predominantly hydrophobic and a rigid hydrophobic steroid structure is well accommodated in this site (Abbate et al, 2004).
The substrate binding site is illustrated in Figure 4. Several large hydrophobic residues, Trp-54, Trp-92, Met-270, and Tyr-294, produce a cavity that accommodates ethanol as the best substrate.
Our structural analysis showed that the Smo CRD oxysterol binding site is most similar to the palmitoleyl-binding site in Fz CRDs (Janda et al., 2012); however, the binding grooves are built of divergent residues, suggesting that they accommodate different classes of hydrophobic ligands.
Processive activity was detected only when the binding site was ≥19 nt, long enough to accommodate two or more XPD helicases.
Therefore, the RrQR enzyme would bind loosely to the substrate, but the substrate-binding site is sufficient to accommodate 3-quinuclidinone in one direction to produce the R-form of 3-quinuclidinol.
The nucleotide corresponding to G130 is a U in the U4 snRNA Sm site, which is accommodated into the nucleotide binding pocket in SmD1 (Leung et al., 2011 ); (G ), U131 base is accommodated in a pocket consisting of SmD2 L3 residues His62 and Asn64, and L5 residue Arg102; (H ), G132 makes several interactions with the ribose phosphate backbone of neighbouring nucleotides.
