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Hypothetical scheme . If the latter contains a negatively charged group close to the peptide bond, hydrogen ions may be accumulated at the latter and so accelerate hydrolysis of this link.

Hypothetical scheme based on condensation of two C3 substrate species , where glyceraldehyde 3-phosphate replaces ery-throse 4-phosphate. The enzymes involved are

Hypothetical scheme by which an electronic signal might be sent through a base pair to initiate the peptidyltransferase reaction. See also Metzler. i

Hypothetical scheme by which an electronic signal might be sent through a base pair to initiate the peptidyltransferase reaction. See also Metzler.431

Hypothetical scheme depicting the effect of tricarboxylic acid activator on the active site of acetyl-CoA carboxylase.

Hypothetical scheme depicting the pathways and intermediates in the luciferase-catalyzed oxidation of FMNHj by molecular oxygen. Intermediates II and Ila are in reversible equilibrium the apparent first-order rate constants for the decay of II .

Hypothetical scheme for binding of antibody against lacto-N-difuco-hexaose I to opposite sides of the oligosaccharide lacto-N-difucohexaose I. Profiles of monosaccharide units were drawn from a molecular model similar to those shown in

Hypothetical scheme for cloning cDNA fragments from reverse transcripts of RNA into M13 vectors for sequencing.

Hypothetical scheme for corronoid biosynthesis

Hypothetical scheme for initiation of bidirectional replication in E. coli. The closed boxes R1 through R5 represent the 9-residue recognition sequences for the E. coli dnaA protein. The open boxes 1, 2, and 3 represent the three 13-residue repeats, possible sites for binding of the dnaB-dnaC protein complex. From McMacken et al.m Redrawn in simplified form.

Hypothetical scheme for initiation of bidirectional replication in E. coU. The closed boxes R1 through R5 represent the 9-residue recognition sequences for the E. coli dnaA protein. The open boxes 1, 2, and 3 represent the three 13-residue repeats, possible sites for binding of the dnaB-dnaC protein complex. FromMcMackenrfflZ. Redrawn in simplified form.

Hypothetical scheme for lignin degradation by ligninolytic cultures of P. chrysosporium.

Hypothetical scheme for neonatal imprinting of the hypothalamus-pituitary-liver axis resulting in sexually dimorphic expression of hepatic enzymes in the adult rat. Neonatal surges of testosterone appear to play a role in imprinting. From M. J. J. Ronis and H. C. Cunny, in Introduction to Biochemical Toxicology, 2nd ed. E. Hodgson and P. E. Levi, eds., Appleton

Hypothetical scheme for phenylalanine hydroxylation involving hydroperoxide of tetrahydropteridine.

Hypothetical scheme for phenylethylamine hydroxylation involving simultaneous attack of oxygen by substrate and reducing agent.

Hypothetical scheme for some of the cellular homeostatic links in the airway mucosa.

Hypothetical scheme for TEMPO controlled living radical polymerization

Hypothetical scheme for the biogenesis of mould products formally derived from seven acetate units. Denotes atoms derived from COgH of an acetate unit

Hypothetical scheme for the evolution of heterothallism and secondary homothallism in Mycobionta. For synchronous nuclear division in Benjaminiella multispora, Cokeromyces and Mucor species with respect to primary homothallism, compare Forst and Prillinger . For molecular details, see Hiscock and Kiies 90 and the literature cited therein . For secondary homothallsim, see Glass et al. and Yun et al. . IC Intracellular function EC extracellular function SP structural proteins which are involved in pheromone binding RP regulatory proteins which are involved in n-DNA binding and regulation of transcription.

Hypothetical scheme for the formation and reactions of high-molecular-weight PolyPs, pyrophosphate and ATP at different stages of appearance of life on Earth .

Hypothetical scheme for the formation of 4-methyI-5-thiazole

Hypothetical scheme for the hydroxylation of epinine involving a hydroperoxide of the substrate.

Hypothetical scheme for the participation of PolyP in the coupling of energy-liberating and energy-requiring processes.

Hypothetical scheme for the pathway for low-temperature signal transduction in Synechocystis. An inactive form of Hik33 is present when membrane lipids are disordered . A phosphate group would be transferred to Hikl9, and finally to Rerl, to activate desB transcription. The response regulator involved in desD transcription has not yet been identified

Hypothetical scheme for the selectivity-conferring interactions of hexokinase with keto- and ald-hexoses. This model accounts for all known specificity and selectivity of yeast hexokinase toward hexose substrates and pentose ligands.



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