Results 161 to 170 of about 11,605 (209)
The Hd0053 gene of Haemophilus ducreyi encodes an α2,3-sialyltransferase
Biochemical and Biophysical Research Communications, 2007 Haemophilus ducreyi is a Gram-negative bacterium that causes chancroid, a sexually transmitted genital ulcer disease. Different lipooligosaccharide (LOS) structures have been identified from H. ducreyi strain 35000, including those sialylated glycoforms.
Xi Chen, Hai Yu, Yanhong Li
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Glycoconjugate Journal, 2001
It has long been known that cancer cells often express more heavily sialylated glycans on their surface and that this feature sometimes correlates with invasion. It is now well established that specific sialylated structures, such as the Thomsen-Friedenreich-related antigens, the sialyl Lewis antigens, the sialyl alpha2-6 lactosaminyl structure, the ...
Dall'Olio F., Chiricolo M.
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It has long been known that cancer cells often express more heavily sialylated glycans on their surface and that this feature sometimes correlates with invasion. It is now well established that specific sialylated structures, such as the Thomsen-Friedenreich-related antigens, the sialyl Lewis antigens, the sialyl alpha2-6 lactosaminyl structure, the ...
Dall'Olio F., Chiricolo M.
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Sialyltransferase activity in leukemia
Leukemia Research, 1982Sialyltransferase activity in blasts from acute lymphoblastic leukemia (ALL) was markedly lower (1.68 +/- 1.23 pmol/mg protein) than those (6.18 +/- 2.22 pmol/mg protein) of lymphocytes from normal volunteers (t less than 0.001). On the contrary, enzyme activity was significantly increased in blasts (1.21 +/- 0.38 pmol/mg protein) from acute non ...
R, Sasaki +3 more
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PmST3 from Pasteurella multocida encoded by Pm1174 gene is a monofunctional α2–3-sialyltransferase
Applied Microbiology and Biotechnology, 2011 Pasteurella multocida (Pm) strain Pm70 has three putative sialyltransferase genes including Pm0188, Pm0508, and Pm1174. A Pm0188 gene homolog in Pm strain P-1059 encodes a multifunctional α2–3-sialyltransferase, PmST1, that prefers oligosaccharide ...
Xi Chen, Hai Yu, Yanhong Li
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A new fluorescent assay for sialyltransferase
Carbohydrate Research, 2001A new fluorescent assay for the sialyltransferase reaction was established. After incubation of the sialyltransferase reaction, the sialyloligosaccharide obtained was treated by acid hydrolysis, and then the NeuAc that was released was labeled with 1,2-diamino-4,5-methylenedioxibenzene.
Yasuhiro Kajihara, Tohru Sakakibara
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Identification of Sialyltransferases of Streptococcus agalactiae.
Journal of Bioscience and Bioengineering, 2002Group B streptococci, Streptococcus agalactiae, produce high-molecular-weight polysaccharides containing N-acetylneuraminic acid. Although the type-specific capsular polysaccharide (CP) synthesis (cps) genes of several S. agalactiae strains have been extensively analyzed, to date, no sialyltransferase activity has been detected from any gene product of
Masaki, Watanabe +7 more
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Ginsenosides, potent inhibitors of sialyltransferase
Zeitschrift für Naturforschung C, 2020Abstract The overexpression of sialic acids and sialyltransferases (STs) during malignant transformation and progression could result in the aberrant sialylation of cancer cells. Therefore, interfering the sialic acid synthesis might be an effective pathway in cancer therapy. In this study, we assessed that the antitumor inhibitors of 20(
Wenxin, Huang +6 more
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Sialylation and sialyltransferase in insects
Glycoconjugate Journal, 2018Sialic acids are negatively charged nine carbon monosaccharides located terminally on glycoproteins and glycolipids that control cellular physiological processes. Sialylation is a post translational modification (ptm) regulated by enzymes and has been studied in prokaryotes including bacteria, dueterostomes including vertebrates, Cephalochordates ...
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Human liver glycoprotein sialyltransferase
Biochimica et Biophysica Acta (BBA) - Enzymology, 1977Abstract Sialyltransferase ( CMP -N- acetylneuraminate: d -galactosyl-glycoprotein N- acetylneuraminyltransferase , EC 2.4.99.1) has been studied using the two glycoprotein substrates asialofetuin and asialo-ovine submaxillary mucin (A-OSM) in fresh and frozen human adult and fetal livers.
J A, Alhadeff +3 more
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Sialyltransferase activity in tumor tissues
Klinische Wochenschrift, 1984Sialyltransferase (ST) activity was examined in tumor and control tissues. Within each group of control tissues a wide variation in the levels of ST activity was observed. Only in 20% of the tumors was the ST activity above the range of enzyme activity of the corresponding group of control tissues.
P G, Berge, A, Wilhelm, H, Schriewer
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