Macromolecular conformation chemistry

R and M M Hann 2000. The In Silico World of Virtual Libraries. Drug Discovery Today 5 326-336. R and I D Kuntz 1990. Conformational Analysis of Flexible Ligands in Macromolecular eptor Sites. Journal of Computational Chemistry 13 730-748. 

The first of these assumptions, generally accepted in macromolecular chemistry [1,3], is correct enough when considering the propagation reaction under copolymerization of the majority of monomers. Simple estimates reported in paper [74] support the correctness of the second assumption. As for the third one, it is true, strictly speaking, only under 0-conditions. The conformational statistics of macromolecules in a thermodynamically good solvent is known [30] to differ from the Gaussian one. Nevertheless, this distinction may hardly influence the qualitative conclusions of the simplest theory of interphase copolymerization. To which extent the account of the excluded volume of macromolecules will affect quantitative results of this theory, may be revealed exclusively by computer simulations. 

Sanger develops his sequence analysis for amino acids in proteins Nobel Prize Chemistry to Hermann Staudinger for contributions to the understanding of macromolecular chemistry Watson and Crick discover the double helix conformation of DNA, the break-through in bio-polymer science... 

Three types of isomerism are important in macromolccular species. These involve constitutional, configurational, and conformational variations. These terms are defined and illustrated. Their usage in macromolecular science is very much the same as in micromolecular chemistry. 

An understanding of acid-base chemistry is essential if we are to appreciate the properties of biological molecules. A great many of the low-molecular-weight metabolites and macromolecular components of living cells are acids and bases, and thus, have the potential to ionize. The electrical charges on these molecules are important factors in the rate of enzyme-catalyzed reactions, the stability and conformation of proteins, the interactions of macromolecules with each other and with small ions, and the analytical and purification techniques used in the laboratory. 

A. R. Leach and I. D. Kuntz. Conformational analysis of flexible ligands in macromolecular receptor sites. Journal of Computational Chemistry, 13 730-748, 1992. 

The conformation (constellation or configuration to the physicist) is determined by the rotation of atomic groups about single bonds to preferred positions (Chapter 4). Conformations can interchange without the destruction of chemical bonds. In macromolecular chemistry the overall conformation—the shape—of the whole macromolecule is important, as well as the conformation about single bonds. Similarly, because of the very... 

There are no uniformly accepted names for the various conformers. Other names used in the literature include tnins-staggered trans, antiparallel, antiperiplanar (lUPAC), anti gflufhe-staggered gauche, skew-staggered, skew, synclinal flUPAC) cis-eclipsed di, ecliptic, synperiplanar (lUPAC) gflut-Ae-eclipsed anticlinal (lUPAC), The lUPAC terms, antiperiplanar (ap). synperiplanar (sp), anticlinal (ac), and synclinal (sc), have not become widely accepted in macromolecular chemistry. 

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