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Nucleotides nomenclature

In this chapter, the authors complete their treatment of the biosyntheses of the major classes of macromolecular precursors by describing the synthesis of the purine and pyrimidine nucleotides. Besides being the precursors of RNA and DNA, these compounds serve a number of other important roles that are reviewed in the opening paragraph of the chapter. Nucleotide nomenclature is reviewed in the introduction to the chapter, as is an outline for the synthesis of nucleotides through de novo and salvage pathways. [Pg.443]

Nomenclature in the first nucleotide (GnhpCnh2), G (guanosine) is linked to C (cytidine) via an... [Pg.156]

Nitrogenous base plus sugar moiety are called nucleosides. Ribonucleic acids (RNA) resemble DNA in that nucleoside monophosphates are joined through phosphodiester bonds. RNAs differ in that the sugars are p-D-ribose units and the pyrimidine uracil is found in place of thymine. Molecular structures and nomenclature for nitrogenous bases, nucleosides, and nucleotides are delineated in Table 2.2. [Pg.40]

In accordance with the recommendation of the Commission of the International Union of Biochemistry [R. H. S. Thompson, Classification and nomenclature of enzymes and coenzymes, Nature 193, 1227 (1902)] the terms NAD and NADP have been used instead of DPN and TPN, except in Fig. 4. The generic term nicotinamide nucleotides is used with the same significance as pyridine nucleotides. [Pg.295]

The nomenclature for the commonly found bases, nucleosides, and nucleotides is shown in Tables I-l-2a and -2b. Note that the deoxy part of the names deoxythymidine, dTMP, etc., is sometimes understood, and not expressly stated, because thymine is almost always found attached to deoxyribose. [Pg.6]

Table 20.1 Classification and nomenclature of bases, nucleosides and nucleotides... Table 20.1 Classification and nomenclature of bases, nucleosides and nucleotides...
NUCLEOTIDES AND NUCLEIC ACIDS Abbreviations and symbols for nucleic acids, polynucleotides and their constituents /. Biol. Chem. (1970) 245, 5171-5176 Corrections, J. Biol Chem. (1971) 246, 4894 Abbreviations and symbols for the description of conformations of polynucleotide chains Eur. J. Biochem. (1983) 131, 9-15 Nomenclature for incompletely specified bases in nucleic acid sequences... [Pg.84]

Fig. 3 A AGS proteins isolated in yeast-based functional screen G-protein signaling modulator (GPSM) as named by the Human Genome Nomenclature Committee. The major sites of action of AGS proteins in the context of the G-protein activation-deactivation cycle are indicated B on the right. (GPR G-protein regulatory, GEF guanine nucleotide exchange factor, GDI guanine nucleotide dissociation inhibitor, GPCR G-protein coupled receptor)... Fig. 3 A AGS proteins isolated in yeast-based functional screen G-protein signaling modulator (GPSM) as named by the Human Genome Nomenclature Committee. The major sites of action of AGS proteins in the context of the G-protein activation-deactivation cycle are indicated B on the right. (GPR G-protein regulatory, GEF guanine nucleotide exchange factor, GDI guanine nucleotide dissociation inhibitor, GPCR G-protein coupled receptor)...
Bases, Nucleosides, and Nucleotides. The relationship of these components of a nucleic acid or polynucleotide is shown in Chart 10. The numbering of the pyrimidine (uracil) and the purine (adenine) shown is the IUPAC nomenclature used by Chemical Abstracts, and... [Pg.287]

Both DNA and RNA contain two major purine bases, adenine (A) and guanine (G), and two major pyrimidines. In both DNA and RNA one of the pyrimidines is cytosine (C), but the second major pyrimidine is not the same in both it is thymine (T) in DNA and uracil (U) in RNA Only rarely does thymine occur in RNA or uracil in DNA The structures of the five major bases are shown in Figure 8-2, and the nomenclature of their corresponding nucleotides and nucleosides is summarized in Table 8-1. [Pg.274]

Table 10 The Nucleic Bases, Their Proton Ionization Constants (pit,), and the Nomenclature of Their Nucleoside and Nucleotide Derivatives... Table 10 The Nucleic Bases, Their Proton Ionization Constants (pit,), and the Nomenclature of Their Nucleoside and Nucleotide Derivatives...
Hofmann F, Biel M, Kaupp UB (2005) International Union of Pharmacology. LI. Nomenclature and structure-function relationships of cyclic nucleotide-regulated channels. Pharmacol Rev 57 455-62... [Pg.554]

Helical junctions are structures in which a number of helical segments are connected by the covalent continuity of strands shared between them. There may or may not be additional unpaired nucleotides present at the positions where the strands exchange between the helices. These are named according to the IUB nomenclature (Lilley et al., 1995). [Pg.146]

Higher eukaryotic cells have lost the ability to synthesize a number of amino acids. These amino acids are generally called essential amino acids, while those that can be synthesized are called non-essential. However, this nomenclature is very misleading for two reasons. First, some of the non-essential amino acids are in fact very essential in that they are required for synthesis of nucleotides (glycine, aspartate, and glutamine). The reason why the ability to synthesize these amino acids has been retained may well be that they are indispensable. Secondly, the capability to synthesize them... [Pg.88]


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Nucleosides, nucleotides nomenclature

Nucleotides nomenclature, Table

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