Results 31 to 40 of about 5,067,072 (323)
Abstract A soluble sialyltransferase was partially purified from colostrum (goat, bovine, and human). This enzyme catalyzed the transfer of sialic acid from cytidine monophospho-sialic acid to β-d-galactopyranosides. When N-acetyllactosamine was the acceptor, the products formed by the colostrum transferase contained sialic acid linked only to C-6 of ...
Don M. Carlson+2 more
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Diversity in the sialic acids [PDF]
Historical background It is now more than 50 years since N-acetyl-neuraminic acid was first discovered and subsequently characterized by several groups (reviewed in Roseman, 1970; Gottschalk, 1972; Rosenberg and Schengrund, 1976; Schauer, 1982; Faillard, 1989).
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Potent Metabolic Sialylation Inhibitors Based on C-5-Modified Fluorinated Sialic Acids
Sialic acid sugars on mammalian cells regulate numerous biological processes, while aberrant expression of sialic acid is associated with diseases such as cancer and pathogenic infection.
T. Heise+8 more
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Let us study viruses and the role of sialic acids in their first step of reproduction, the attachment to cells. We begin our study with the help of the "Earth's virology course", created by Vincent Racaniello, with David Tuller and Gertrud U. Rey. The first virus that we will study is that of influenza A. Actually, "Earth's virology course" is a proper
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Role of Pneumococcal NanA Neuraminidase Activity in Peripheral Blood
The most frequent form of hemolytic-uremic syndrome (HUS) is associated with infections caused by Shiga-like toxin-producing Enterohaemorrhagic Escherichia coli (STEC). In rarer cases HUS can be triggered by Streptococcus pneumoniae.
Shahan Syed+10 more
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Siglecs as Therapeutic Targets in Cancer
Hypersialylation is a common post-translational modification of protein and lipids found on cancer cell surfaces, which participate in cell-cell interactions and in the regulation of immune responses. Sialic acids are a family of nine-carbon α-keto acids
Jackwee Lim, Duygu Sari-Ak, Tanaya Bagga
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A major challenge facing bacterial intestinal pathogens is competition for nutrient sources with the host microbiota. Vibrio cholerae is an intestinal pathogen that causes cholera, which affects millions each year; however, our knowledge of its ...
N. D. McDonald+4 more
semanticscholar +1 more source
The Sodium Sialic Acid Symporter From Staphylococcus aureus Has Altered Substrate Specificity
Mammalian cell surfaces are decorated with complex glycoconjugates that terminate with negatively charged sialic acids. Commensal and pathogenic bacteria can use host-derived sialic acids for a competitive advantage, but require a functional sialic acid ...
Rachel A. North+22 more
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O-acetylation is a common modification of sialic acids that has been implicated in a multitude of biological and disease processes. A lack of analytical methods that can determine exact structures of sialic acid variants is a hurdle to determine roles of
Gaёl M. Vos+7 more
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