Results 21 to 30 of about 5,135,061 (391)

Sialic Acid Utilization [PDF]

open access: yesAdvances in Nutrition, 2012
Early postnatal development encounters milk as a key environmental variable and yet the sole nutrient source. One evolutionary conserved constituent of milk is sialic acid, which is generally displayed on glycoconjugates and free glycans. During early postnatal development, high sialic acid need was proposed to be unmet by the endogenous sialic acid ...
Norbert Sprenger, Peter I. Duncan
openaire   +2 more sources

Synthesis of Sialic Acids and Sialic Acid Derivatives [PDF]

open access: yes, 1982
Sialic acids as such, sialic acid derivatives, analogues, glycosides and sialooligosaccharides have been subject of many synthetic investigations. These studies were aimed at a further exploration of the properties of sialic acids, the preparation of substrates and inhibitors for sialidases, sialyltransferases or for sialic acid converting enzymes, and
Vliegenthart, J.F.G., Kamerling, J.P.
openaire   +3 more sources

Interferon-gamma inhibits influenza A virus cellular attachment by reducing sialic acid cluster size

open access: yesiScience, 2022
Summary: The mucosal antiviral role of type I and III interferon in influenza virus infection is well established. However, much less is known about the antiviral mechanism of type II interferon (interferon-gamma).
Carol Ho-Yan Fong   +7 more
doaj   +1 more source

The Identification of Sialuria with Different Degrees of Intellectual Disabilities in Children and Adolescents

open access: yesAnnals of Psychophysiology, 2021
Background: Single nucleotide polymorphism/mutation in the R263L region of the allosteric site of the GNE gene produces a phenotype with an overproduction of intracellular levels of sialic acid and causes sialuria.
Hina Ishtiaq   +5 more
doaj   +1 more source

Synthesis of partially O-acetylated N-acetylneuraminic acid using regioselective silyl exchange technology. [PDF]

open access: yes, 2014
Postglycosylation acetylation of sialic acid imparts unique roles to sialoglycoconjugates in mammalian immune response making structural and functional understanding of these analogues important.
Gervay-Hague, Jacquelyn, Park, Simon S
core   +2 more sources

Systematic Chemoenzymatic Synthesis of O-Sulfated Sialyl Lewis x Antigens. [PDF]

open access: yes, 2015
O-Sulfated sialyl Lewis x antigens play important roles in nature. However, due to their structural complexity, they are not readily accessible by either chemical or enzymatic synthetic processes.
Chen, Xi   +8 more
core   +1 more source

Sialic acid and crystal binding [PDF]

open access: yesKidney International, 2000
We studied the role of cell surface sialic acid in the adherence of calcium oxalate monohydrate (COM) crystals to Madin-Darby canine kidney (MDCK) cells.Studies were performed with undifferentiated (crystal-binding) cells in subconfluent cultures and maturated (noncrystal-binding) cells in confluent cultures.
Burt G. van der Boom   +3 more
openaire   +4 more sources

Increased expression of sialic acid in cervical biopsies with squamous intraepithelial lesions

open access: yesDiagnostic Pathology, 2010
Background Altered sialylation has been observed during oncogenic transformation. Sialylated oligosaccharides of glycoproteins and glycolipids have been implicated in tumor progression and metastases.
Vallejo-Ruiz Verónica   +4 more
doaj   +1 more source

Membrane-enclosed multienzyme (MEME) synthesis of 2,7-anhydro-sialic acid derivatives [PDF]

open access: yes, 2017
Naturally occurring 2,7-anhydro-alpha-N-acetylneuraminic acid (2,7-anhydro-Neu5Ac) is a transglycosylation product of bacterial intramolecular trans-sialidases (IT-sialidases).
Andrew Bell   +41 more
core   +1 more source

Structural basis for human coronavirus attachment to sialic acid receptors

open access: yesNature Structural & Molecular Biology, 2019
Coronaviruses cause respiratory tract infections in humans and outbreaks of deadly pneumonia worldwide. Infections are initiated by the transmembrane spike (S) glycoprotein, which binds to host receptors and fuses the viral and cellular membranes.
M. A. Tortorici   +10 more
semanticscholar   +1 more source

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