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ribose

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Journal Article
Journal: Clay Minerals
Published: 01 December 2010
Clay Minerals (2010) 45 (4): 469-475.
...H. Hashizume; S. van der Gaast; B. K. G. Theng Abstract We have determined the adsorption of RNA components (adenine, cytosine, uracil, ribose and phosphate) by Mg 2+ -exchanged montmorillonite. The isotherms for adenine, cytosine and uracil were of the C-type, the amount adsorbed increasing...
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Journal Article
Published: 01 December 2007
Clays and Clay Minerals (2007) 55 (6): 599-605.
...Hideo Hashizume; Benny K. G. Theng Abstract We have investigated the adsorption of adenine, adenosine, ribose, and adenosine-5′-phosphate (5′-AMP) by allophane at pH 4, 6 and 8. Adenine, adenosine and ribose gave similar isotherms, i.e . adsorption increased regularly with solution concentration...
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Journal Article
Journal: Elements
Published: 01 August 2017
Elements (2017) 13 (4): 261-265.
...Yoshihiro Furukawa; Takeshi Kakegawa According to the RNA World hypothesis, ribonucleic acid (RNA) played a critical role in the origin of life. However, ribose, an essential component of RNA, is easily degraded: finding a way to stabilize it is critical to the viability of the hypothesis. Borate...
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Epimeric forms of <b>ribose</b>. In solution, <b>ribose</b> molecules have five different...
in > Elements
Published: 01 August 2017
Figure 2 Epimeric forms of ribose. In solution, ribose molecules have five different configurations: two five-member rings (α- and β-ribofuranose), two six-member rings (α- and β-ribopyranose), and a linear form (aldehyde). Ribose molecules continuously change their epimeric form via the linear
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Isotherm for the adsorption of <b>ribose</b> by Mg 2+ -montmorillonite.
Published: 01 December 2010
F ig . 5. Isotherm for the adsorption of ribose by Mg 2+ -montmorillonite.
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Molecular structures of adenine, adenosine, <b>ribose</b> (β-D-ribofuranose), and ...
Published: 01 December 2007
Figure 3. Molecular structures of adenine, adenosine, ribose (β-D-ribofuranose), and 5′-adenosine-mono-phosphate (5′-AMP).
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Isotherms for the adsorption of <b>ribose</b> by allophane at (a) pH 4, (b) pH 6 a...
Published: 01 December 2007
Figure 6. Isotherms for the adsorption of ribose by allophane at (a) pH 4, (b) pH 6 and (c) pH 8.
Journal Article
Published: 01 August 2018
American Mineralogist (2018) 103 (8): 1306-1318.
... structural units involved in early ribose stabilization would thus survive most impact conditions. Manuscript handled by Mainak Mookherjee 10 7 2017 10 4 2018 Copyright © 2018 by the Mineralogical Society of America 2018 Mineralogical Society of America Kernite boron high...
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Journal Article
Journal: GSA Bulletin
Published: 01 February 1970
GSA Bulletin (1970) 81 (2): 499-504.
... cycle. Available evidence suggests that the acid-extractable monosaccharides and polysaccharides are at least partly native to the rocks or fossils in which they occur. The acid-extractable sugars obtained in these samples are β-D-galactose, β-D-glucose, mannose, arabinose, xylose, ribose, and rhamnose...
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Schematic of the formose reaction. Formaldehyde (5) and glycolaldehyde (6) ...
in > Elements
Published: 01 August 2017
Figure 1 Schematic of the formose reaction. Formaldehyde (5) and glycolaldehyde (6) react to form sugars including ribose (1). Ribose is a minor product. Successive reactions degrade ribose into brown caramel.
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A pre-wash, reflected-light image of a 9 × 13 microarray on a 1 × 1 cm (010...
Published: 01 November 2006
F igure 8. A pre-wash, reflected-light image of a 9 × 13 microarray on a 1 × 1 cm (010) plate of albite. Each row incorporates triplicate spots at three dilutions (0.05, 0.5, and 1 M ). The 13 rows are: D-ribose, L-ribose, DL-ribose, D-arabinose, L-arabinose, DL-arabinose, D-lyxose, L-lyxose
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Chromosomal DNA, DNA double helix, genes. The top part of this figure gives...
Published: 03 January 2003
Figure 2. Chromosomal DNA, DNA double helix, genes. The top part of this figure gives the basic “building blocks” of nucleic acids, i.e., the nucleotides, and their elementary components, the ribose (or deoxyribose) sugar units and purine/pyrimidine bases. The carbon numbering scheme for ribose
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Formation of nucleoside–borate complex and selective phospholylation. In so...
in > Elements
Published: 01 August 2017
Figure 3 Formation of nucleoside–borate complex and selective phospholylation. In solutions free from borate, phosphorylation can occur at all hydroxyl groups: 2′-, 3′-, and 5′-hydroxyl. However, in the presence of borate, borate forms a complex with the 2′-hydroxyl and 3′-hydroxyl of a ribose
Journal Article
Journal: Elements
Published: 01 April 2008
Elements (2008) 4 (2): 88.
.... The reaction takes place within the cell and is responsible for a range of functions, including metabolism, DNA synthesis, and cellular motility. ATP consists of a central sugar molecule, ribose (which also happens to be the foundation for DNA) (green in the figure) bounded to a base, adenine...
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Cyclic isoprenoid lipids and their relationships to squalene. (a) Squalene ...
Published: 01 January 2001
in structures d, e, and f. (d) The hopane carbon skeleton. (e) Tetrahymanol. (f) Bacteriohopane tetrol, an extended hopanoid that includes five carbons deriving from the C 5 sugar ribose. (g) β-Amyrin, a typical pentacyclic isoprenoid produced by higher plants.
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F ig . 10. Sketch to show how the present mechanism for amino-acid adsorpti...
Published: 01 May 2005
F ig . 10. Sketch to show how the present mechanism for amino-acid adsorption, polymerization, a crude coding, and subsequent release by acid-base catalysis ( Muth et al., 2000 ) might have originated. In the case shown here, the side chains of three RNA monomers, comprising ribose sugar
Journal Article
Published: 01 October 2007
Clays and Clay Minerals (2007) 55 (5): 542.
.... Topotactic cation exchange in transformed micas under hydrothermal conditions Hideo Hashizume and Benny K.G. Theng. Adsorption of adenine, adenosine, ribose, and 5′-amp by allophane, an aluminosilicate mineral of short-range order E. García-Romero, M. Suárez, J. Santarén and A. Alvarez. Crystallo...
Journal Article
Journal: Elements
Published: 01 December 2016
Elements (2016) 12 (6): 407-412.
... nucleobases) to the modern genetic systems (with polymerized nucleobases). In the peptide model, nucleobases are built upon a peptide backbone instead of the phosphate-ribose backbone currently found in RNA. The condensation of nucleobase acetic acids and N-( 2 -aminoethyl)glycine (AEG), which are compounds...
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Journal Article
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 59 (1): 187-210.
... is a biopolymer composed of monomers linked together. The monomer is composed of three units, bases, ribose and phosphate (Fig. 1 ). Figure 1. RNA structural elements. The five-carbon sugar ribose is the backbone of nucleoside monomers. Initially it was proposed that the prebiotic synthesis...
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Journal Article
Journal: Elements
Published: 01 June 2005
Elements (2005) 1 (3): 145-149.
... demonstration of RNA catalysis ( Cech et al. 1981 ; Guerrier-Takeda et al. 1983) suggested the possibility that RNA self-assembly might, in fact, be the key to life's origins. The building blocks of RNA ( T able 1 ; F ig . 3 ), consist of a sugar molecule (ribose, C 5 H 10 O 5 ), a phosphate group (PO 4...
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