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Cytidine. structure

A cell extract was subjected to ammonium sulfate fractionation and the dialyzed protein was then poured through the affinity column which held the cytidine deaminase molecules because of their affinity for the cytidine structures that were bound to the agarose. [Pg.106]

Cytosine was isolated from hydrolysis of calf thymus in 1894 and by 1903 its structure was known and it had been synthesized from 2-ethylthiopyrimidin-4(3H)-one. The acid hydrolysis of ribonucleic acid gives nucleotides, among which are two cytidylic acids, 2 -and 3 -phosphates of cytidine further hydrolysis gives cytidine itself, i.e. the 1-/3-D-ribofuranoside of cytosine, and thence cytosine. The deoxyribonucleic acids likewise yield deoxyribonucleotides, including cytosine deoxyribose-5 -phosphate, from which the phosphate may be removed to give cytosine deoxyriboside and thence cytosine. [Pg.144]

Write a structural formula for 2 -deoxycytidine 3 -monophos- phate. You may wish to refer to Table 28.2 for the structure of cytidine. J... [Pg.1161]

Cytidine (252, R = ribityl) has been shown to exist in the amino form, and, using refined X-ray methods, the positions of all the hydrogen atoms in compound 253 were determined. Structures 252 (R = Me) and 254 were shown to exist by ultraviolet spectral comparisons,and structure 252 (R = Me) has been shown to predominate over 255 by a factor of ca. 10 by using the pK method. ... [Pg.414]

Common Name Citidoline cytidine diphosphate choline Structural Formula ... [Pg.347]

Azacitidine (5-aza-cytidine, Fig. 8) is a pyrimidine nucleoside analog of cytidine. The structural formula is... [Pg.151]

FIGURE 3.37 Structure of molybdopterin conjugated with cytidine diphosphate. [Pg.185]

Outstanding in this field has been the contribution of Todd and his co-workers. The significance of their work has been, first, that it has led to successful syntheses of adenosine, guanosine, cytidine, and uridine. Equally important, however, has been its contribution toward the final confirmation of the structures of the nucleosides. This may be illustrated in the following way. By the route I to V, which had been developed for the synthesis of pentosylpurines (purine 1-deoxypentosides), it was possible to obtain 9-/3-n-mannopyranosyladenine (V), in which the position of the carbohydrate residue was known with certainty.19 This nucleoside, on oxi-... [Pg.288]

Complete confirmation of the structures assigned to the ribonucleosides has been provided by a study of their 5-0- p -tolylsulfonyl derivatives. Whereas 2,3-O-isopropylideneuridine and 2,3-O-isopropylideneinosine give 5-p-tolylsulfonyl derivatives which, with sodium iodide, are converted to 5-deoxy-5-iodo compounds,30 31 the corresponding adenosine and cytidine... [Pg.290]


See other pages where Cytidine. structure is mentioned: [Pg.14]    [Pg.226]    [Pg.14]    [Pg.226]    [Pg.1161]    [Pg.333]    [Pg.50]    [Pg.2]    [Pg.244]    [Pg.516]    [Pg.289]    [Pg.300]    [Pg.301]    [Pg.302]    [Pg.359]    [Pg.29]    [Pg.207]    [Pg.34]    [Pg.198]    [Pg.1159]    [Pg.1218]    [Pg.255]    [Pg.290]    [Pg.291]    [Pg.293]    [Pg.295]    [Pg.302]    [Pg.40]    [Pg.187]    [Pg.297]    [Pg.38]    [Pg.335]   
See also in sourсe #XX -- [ Pg.291 ]

See also in sourсe #XX -- [ Pg.309 ]

See also in sourсe #XX -- [ Pg.28 , Pg.43 , Pg.309 , Pg.313 ]

See also in sourсe #XX -- [ Pg.264 ]




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Cytidine

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