(10) These simulations reveal in part the complex impact of base ionization on the starting ground-state geometry and may explain the apparent insensitivity to base ionization of an initial QM/MM analysis of the ribozyme based on a crystal structure of a transition-state analog.
The present understanding of the mechanism of phenylalanine activation is based on a crystal structure of PheH in which N-terminal residues 19 29 of the regulatory domain lie across the active site of the catalytic domain.
Herein, we report four pharmacophore models of 17β-HSD1 based on a crystal structure, a relaxed crystal structure, a library of 17β-HSD1 inhibitors and on a docked complex of 17βHSD1 enzyme and a potent inhibitor.
The mechanism of coupling DNA damage detection to elevated poly(ADP-ribose) production has been elucidated based on a crystal structure of the essential domains of PARP-1 in complex with a DNA strand break.
Based on a crystal structure of the TPR domain of ncOGT reported in 2004, the TPR domain is believed to interact with other proteins and determine substrate specificity.
In the third model, based on a crystal structure of T. thermophilus RNAP, folding of TL was proposed in order to stabilize, via R1239 and H1242 residues, the triphosphate moiety of the i+1 site-bound NTP in the active (insertion) conformation (transition state stabilisation or orientation catalysis) [ 7, 9].
designed and synthesized a selective inhibitor of c-Fos/AP-1, termed T-5224, using three-dimensional (3D) pharmacophore modeling based on a crystal structure of the AP-1 DNA AP-1 DNA and found that selecomplexnhibition of c-Fos/and1 resolved disease in a mouse model ofoundhrithat
A series of potential peptide ligands for the anti-carbohydrate antibody SYA/J6, directed against Shigella flexneri Y, was designed by molecular modeling based on a crystal structure of the antibody complex with a carbohydrate-mimetic peptide.
Molecular models were generated for the apoenzyme and p[NH]ppA-bound states in the C-terminal regions by docking of a model based on a crystal structure from a closely related enzyme.
In the first model, based on a crystal structure of yeast RNAP II, folded TL was proposed to directly participate in catalysis through an invariant histidine residue (β' H1242, here and throughout the text Thermus aquaticus RNAP numbering is used) that withdraws electron density from the β-phosphate of the incoming NTP thus activating nucleophilic attack on the α-phosphorus [ 11].
