Results 101 to 110 of about 18,596 (141)

The Primary Structur of the Haemoglobin of the African Elephant (Loxodonta africana, Proboscidae) [PDF]

, 1984
Braunitzer, G., Krombach, C., Schrank, B., Stangl, A., Wiesner, Henning   +4 more
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Configuration of N-acetylneuraminic Acid

Nature, 1958
RECENTLY, Comb and Roseman1 observed that N-acetyl-d-mannosamine and not N-acetyl-d-glucosamine was a substrate for the enzyme synthesizing N-acetylneuraminic acid (nanaldolase) isolated from Clostridium perfringens. These results seem to be in conflict with the synthesis of N-acetylneuramic acid from N-acetyl-d-glucosamine as reported by Corn-forth ...
J. Brug, G. B. Paerels
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The biosynthesis of N-acetylneuraminic acid

Biochemical and Biophysical Research Communications, 1961
Abstract This communication describes a new enzyme system which catalyzes the synthesis of N -acetylneuraminic acid (NANA) from N -acetylmannosamine and phosphoenolpyruvic acid in the presence of ATP. It differs from N -acetylneuraminic acid aldolase (Comb and Roseman, 1960) which catalyzes the synthesis of NANA from N ...
Leonard Warren, Herbert Felsenfeld
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Synthesis of N-acetylneuraminic acid

Experientia, 1963
Die Synthese der N-Acetylneuraminsaure aus N-Acetylmannosamin und Oxalessigsaure und die Isolierung eines Zwischenproduktes, 2-Keto-3-deoxy-3-carboxy-5-N-acetylnonulosaminsaure wird beschrieben.
T. Rebane, H. Rinderknecht
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Glycosidation of N-acetylneuraminic acid [PDF]

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1968
The synthesis of the methyl esters of 9-O-(β-D-glucopyranosyl)- and 9-O-(β-D-galaetopyranosyl)-N-acetylneuraminic acid is described.
A. Ya. Khorlin, I. M. Privalova
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An efficient process for production of n-acetylneuraminic acid using n-acetylneuraminic acid aldolase

Enzyme and Microbial Technology, 1997
N-acetyl-D-neuraminic acid (Neu5Ac) aldolase (EC 4.1.3.3) has bee reported for synthesis of Neu5Ac,1-5 but there are no reports of processes which do not have significant drawbacks for large-scale operation. Here, Neu5Ac aldolase from an overexpressing recombinant strain of Escherichia coli has been used to develop an immobilized enzyme process for ...
M. Todd, D.S. Montgomery, Mahmoud Mahmoudian, D. Ramlakhan, David Noble, R.F. Middleton, C.S. Drake, Michael J. Dawson, J.E. Piercey   +8 more
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Synthesis of a carbocyclic analogue of N-acetylneuraminic acid (pseudo-N-acetylneuraminic acid)

Journal of the Chemical Society, Chemical Communications, 1992
A carbocyclic analogue of N-acetylneuraminic acid was synthesized from the Diels–Alder endo-adduct of furan and acrylic acid, and its ammonium salt was subjected to biological assay.
Toshiaki Taki, Masaru Yoshikawa, Seiichiro Ogawa   +2 more
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N-Acetylneuraminic Acid: Neoglycoproteins and Pseudopolysaccharides

Journal of Carbohydrate Chemistry, 1987
Abstract A simplified procedure for the synthesis of acetochloroneuraminic acid is described starting from the methyl ester. N-acetyl neuraminic acid α-allyl glycoside was prepared in high yield using silver salicylate as catalyst. Reductive ozonolysis of the allyl group, followed by direct reductive ami nation to protein carriers, gave immunogenic ...
Roy, René, Laferrière, Craig A., Gamian, Andrzej, Jennings, Harold J.   +3 more
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The benzhydryl ester of N-acetylneuraminic acid [PDF]

Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 1966
Benzhydryl protection of the carboxy group of N-acetylneuraminic acid has been described for the first time.
I. M. Privalova, A. Ya. Khorlin
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N-Acetylneuraminic acid storage disease

Human Genetics, 1985
Increased amounts of free sialic acid were found in body fluids, leukocytes, cultured fibroblasts, and liver tissue of a four-year-old boy with mental retardation, ataxia, and clinical and radiologic findings of a mild mucopolysaccharidosis. A diagnosis of Salla disease was made though in contrast to earlier reports, recurrent upper respiratory ...
K. Mendla, H. Friebolin, Jürgen W. Spranger, W. Baumann, J. Baumkötter, J. Gehler, Michael Cantz   +6 more
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