conformation transition

См. также в других словарях:

• conformation — conformational, adj. /kon fawr may sheuhn/, n. 1. manner of formation; structure; form, as of a physical entity. 2. symmetrical disposition or arrangement of parts. 3. the act or process of conforming; adaptation; adjustment. 4. the state of… …   Universalium

• Cyclohexane conformation — A cyclohexane molecule in chair conformation. Hydrogen atoms in axial positions are shown in red, while those in equatorial positions are in blue. A cyclohexane conformation is any of several three dimensional shapes that a cyclohexane molecule… …   Wikipedia

• Helix-coil transition model — Helix coil transition models are formalized techniques in statistical mechanics developed to describe conformations of linear polymers in solution. The models are usually but not exclusively applied to polypeptides as a measure of the relative… …   Wikipedia

• Serpin — Serpins are a group of proteins with similar structures that were first identified as a set of proteins able to inhibit proteases. The name serpin is derived from this activity serine protease inhibitors. [cite journal |author=R. Carrell and J.… …   Wikipedia

• MACROMOLÉCULES — Les macromolécules sont des systèmes moléculaires constitués par un très grand nombre d’atomes assemblés entre eux par des liaisons covalentes. Alors que les molécules simples sont formées de quelques dizaines d’atomes au maximum, les… …   Encyclopédie Universelle

• Oxocarbenium — The general structure of an oxocarbenium ion An oxacarbenium ion is a canonical form of a carbocation, real or hypothetical, which places a formal positive charge on an oxygen atom.[1] They are common transition states for the hydrolysis of… …   Wikipedia

• Diels-Alder reaction — The Diels Alder reaction is an organic chemical reaction (specifically, a cycloaddition) between a conjugated diene and a substituted alkene, commonly termed the dienophile, to form a substituted cyclohexene system. [cite journal author = Diels,… …   Wikipedia

• Diels–Alder reaction — Named after Otto Paul Hermann Diels Kurt Alder Reaction type Cycloaddition Reaction …   Wikipedia

• Asymmetric induction — (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent,… …   Wikipedia

• Polymère — Fibres de polyester observées au MEB …   Wikipédia en Français

• STÉRÉOCHIMIE - Stéréochimie organique — On trouvera dans l’article chimie ORGANIQUE le principe des méthodes qui ont conduit à l’établissement des formules développées planes. On va montrer ici pourquoi ces formules planes sont encore insuffisantes. Désignant provisoirement par X, Y, Z …   Encyclopédie Universelle