Neuraminic acids

Fig. 2. Generalized structure of N-linked oligosaccharide of the pituitary glycoprotein hormones. SO = sulfate, GIcNAc = N — acetylglucosamine, GalNAc = N — acetylgalactosamine, Man = mannose, Fuc = fucose, SA = sialic (neuraminic) acid.

TV-Acetyl neuraminic acid (NANA, O-Sialic acid, 5-acetamido-3,5-dideoxy-D-g/ycero-D-g/acto-2-nonulosonic acid, lactaminic acid) [I3I-48-6JM 309.3, m 159°(dec), 181-... [Pg.507]

TV-Acetyl neuraminic acid aldolase [from Clostridium perfringens, TV-acetyIneuraminic acid pyruvate lyase] [9027-60-5] 32,000 [EC 4.1.3.3]. Purified by extraction with H2O,... [Pg.507]

A -Acetyl-D-neuraminic acid (NeuNAc), a sialic acid... [Pg.220]

Problem 25.24 Show how neuraminic acid can arise by an aldol reaction of. r-acetylmannosamine with pyruvate (CFI C0C02-). [Pg.997]

OH NHAc N-acety/neuraminic acid r ( COOH OH NHAC 1... [Pg.593]

Neuraminic Acid and Its Relation to Chronic Bronchitis, III. Carbohydrate Constituents of Sputum, M. Z. Atassi, S. A. Barker, and M. Stacey, Clin. Chim. Acta, 4 (1959) 823-827. [Pg.33]

Neuraminic acid for 5-amino-3,5-dideoxy-D-g/ycero-D-ga/acfo-non-2-ulosonic acid... [Pg.84]

Acetamido-3,5-dicleoxy-D-g/ycero-a-D gafacfo-non-2-ulopyranosonic acid (W-acetyl-a-neuraminic acid, a-Neu5Ac), drawn in three ways (note that C-7 is the anomeric reference atom)... [Pg.85]

N-Glycoloyl-a-neuraminic acid (a-Neu5Gc) (d is implied in the trivial name)... [Pg.118]

A/-Acetyl-4,8,9-tri-0-acetyl-a-neuraminic acid (ot-Neu4,5,8,9Ac4) 2-Carb-26. Intramolecular anhydrides... [Pg.118]

Mycarose Mycinose Neuraminic acid (Neu) 2,6-D ideoxy-3- C-methy I-l- ribo- hexose 6-Deoxy-2,3-di-Omethyl-D-allose 5-Amino-3,5-dideoxy-D-g/ycero-D-ga/acfo-non-2-ulosonic acid... [Pg.175]

Figure 10.7 Neuraminic acid derivatives accessible by NeuA catalysis, including an intermediate for alkaloid synthesis.

S-N,7-0,8-0,9-0-pentaacetyl-2,3-didehydro-2-deoxy-neuraminic acid methyl ester... [Pg.2430]

Bossart-Whitaker P, Carson M, Babu YS, Smith CD, Laver WG, Air GM (1993) Three-dimensional structure of influenza A N9 neuraminidase and its complex with the inhibitor 2-deoxy 2,3-dehydro-V-acetyl neuraminic acid. J Mol Biol 232 1069-1083 Burmeister WP, Ruigrok RW, Cusack S (1992) The 2.2 A resolution crystal structure of influenza... [Pg.146]

Three 3-deoxynonulosonic acids containing amino groups are known. The most abundant of these is 5-amino-3,5-deoxy-D- /yc ro-D-ga/acto-nonulosonic acid (neuraminic acid, 27), which occurs in different extracellular polysaccharides. Some of these, like colominic acid from E. coli K1, are homopolysaccharides. Neuraminic acid is generally A-acetylated and, as in the animal glycoconjugates, has only been found in the a-pyranosyl form (27). It also occurs in some LPS, for example those from some Rhodobacter... [Pg.297]

The biosynthesis of Kdo and neuraminic acid is known to involve enol-pyruvate phosphate and D-arabinose or 2-acetamido-2-deoxy-D-mannose, respectively. Nothing is known about the biosynthesis of all the other glycu-losonic acids. One interesting problem is, for example, whether the two 5,7-diamino-3,5,7,9-tetradeoxynonulosonic acids are synthesized analogously to neuraminic acid, from a three- and a six-carbon fragment, by modification of neuraminic acid on the sugar nucleotide level, or by a third, less obvious route. [Pg.318]

Sialic acids N-Acyl derivatives of neuraminic acid, eg, N-acetyIneuraminic acid (NeuAc see Figure 13-16), the predominant sialic acid. [Pg.109]

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