Results 31 to 40 of about 5,067,072 (323)

The Sialic Acids

open access: hybridJournal of Biological Chemistry, 1973
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
openalex   +4 more sources

Diversity in the sialic acids [PDF]

open access: yesGlycobiology, 1992
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).
openaire   +4 more sources

Potent Metabolic Sialylation Inhibitors Based on C-5-Modified Fluorinated Sialic Acids

open access: yesJournal of Medicinal Chemistry, 2018
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
semanticscholar   +1 more source

Sialic acids and viruses

open access: yes, 2021
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
openaire   +5 more sources

Sialic Acids

open access: hybrid, 1971
Harry Schachter   +2 more
openalex   +2 more sources

Role of Pneumococcal NanA Neuraminidase Activity in Peripheral Blood

open access: yesFrontiers in Cellular and Infection Microbiology, 2019
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
doaj   +1 more source

Siglecs as Therapeutic Targets in Cancer

open access: yesBiology, 2021
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
doaj   +1 more source

Host-Derived Sialic Acids Are an Important Nutrient Source Required for Optimal Bacterial Fitness In Vivo

open access: yesmBio, 2016
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

open access: yesFrontiers in Chemistry, 2018
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
doaj   +1 more source

Sialic acid O-acetylation patterns and glycosidic linkage type determination by ion mobility-mass spectrometry

open access: yesNature Communications, 2023
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
doaj   +1 more source

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