As a result, entire switch II is restructured and moved away from the nucleotide binding pocket, providing a rationale for the diminished GTPase activity of EhRabX3.
The "flipping" of damaged nucleotides out of the DNA helix and into active site binding pockets provides a mechanism by which glycosylases interact with damaged DNA (for a review, see ref (50)).
The close proximity of these residues to the [3Fe 4S] cluster and the quinone binding pocket provided an excellent opportunity to investigate factors controlling the reduction potential of the [3Fe 4S] cluster, the directionality of electron transfer and catalysis, and the architecture and chemistry of the quinone binding sites.
The presence of the oligonucleotide allowed Ire1KR32 to crystallize without a ligand occupying the kinase ATP binding pocket, providing an important insight into the mechanism of cofactor-dependent activation of Ire1 [ 12].
Switching agonism to antagonism and the reverse by changing either SMLs or residues covering the binding pocket provides detailed knowledge about discriminative pharmacophores.
Third, the three dimensional structure of mSAA3 exhibits a hollow hydrophobic binding pocket, providing structural insight into how SAAs bind retinol.
Moreover, the hydroxyl groups of three conserved tyrosine residues (Y38, Y42, and Y76) residing below the guanidinium group of R45 form a "cage -like binding pocage -likeding hydrogen binding.
Among other identified amino acid substitutions, position Gly165 in the S1 binding pocket provided insights in subtilisin Carlsberg's promiscuity by promoting ester perhydrolysis.
In our structure, we clearly observed the metal binding pocket provided by the buried surface between the N-terminal and C-terminal domains (Fig. 5B).
These simulations also provide an explanation for why bryostatin's northern region is important to its activity despite not being in contact with the binding pocket, thus providing a hypothesis for future design of new bryostatin analogs.
