نتایج جستجو برای: isomorphous substitution
تعداد نتایج: 57056 فیلتر نتایج به سال:
Pancreatic phospholipase A(2) (PLA2) shows a strong preference for the binding to the anionic interface and a consequent allosteric activation. In this paper, we show that virtually all the preference is mediated through 3 (Lys-53, -56, and -120) of the 12 cationic residues of bovine pancreatic PLA2. The lysine-to-methionine substitution enhances the binding of the enzyme to the zwitterionic in...
Atomic coordinates are presented for yeast tRNA(Phe) derived from a wire skeletal model fitted to an electron density map at 2.5 A resolution obtained by isomorphous replacement.
Substantial highly correlated differences sometimes exist between a series of heavy-atom derivatives of a macromolecule and the native structure. Use of such a series of derivatives for phase determination by multiple isomorphous replacement (MIR) has been difficult because MIR analysis has treated errors as independent. A simple Bayesian approach has been used to derive probability distributio...
The combination of isomorphous and isometric porous crystals based on charge-assisted H-bonding leads to molecular alloys and composite crystals.
Hydrotalcite (HT) and other layered double metal hydroxides are of great interest as gene delivery and timed release drug delivery systems and as enteric vehicles for biologically active molecules that are sensitive to gastric fluids. HT is a naturally occurring double metal hydroxide that can be synthesized as a nanomaterial consisting of a brucite structure with isomorphous substitution of al...
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