Results 231 to 240 of about 436,301 (266)
Some of the next articles are maybe not open access.
On the structure of the carbohydrate chains of blood group substances
Biochemical and Biophysical Research Communications, 1970Abstract A scheme for the general composition of the carbohydrate chains in blood group substances is suggested. The principal peculiarities of this scheme are the high degree of carbohydrate chain branching and the presence in the region close to the peptide backbone of a fragment built up of only N-acetylhexosamines.
N K, Kochetkov +6 more
openaire +2 more sources
End group and carbohydrate analyses of equine LH
Biochemical and Biophysical Research Communications, 1972Summary The terminal amino acid residues and carbohydrate composition of a highly purified equine luteinizing hormone (LH) preparation were determined. The N-terminal amino acids were serine and phenylalanine while the C-termini were determined to be serine and isoleucine. The carbohydrate analyses showed high amounts of sialic acid.
T D, Landefeld, H J, Grimek, W H, McShan
openaire +2 more sources
Carbohydrate Research, 1978
Abstract Selective halogenation of hydroxymethyl groups in sugars and nucleosides has been achieved by use of triphenylphosphine and carbon tetrahalides (chloride, bromide, or iodide) in pyridine. Methyl α- d -glucopyranoside, 1,2,- O -isopropylidene-α- d -glucofuranose, inosine, and uridine give almost quantitative yields of their primary halomethyl
Abul Kashem +2 more
openaire +2 more sources
Abstract Selective halogenation of hydroxymethyl groups in sugars and nucleosides has been achieved by use of triphenylphosphine and carbon tetrahalides (chloride, bromide, or iodide) in pyridine. Methyl α- d -glucopyranoside, 1,2,- O -isopropylidene-α- d -glucofuranose, inosine, and uridine give almost quantitative yields of their primary halomethyl
Abul Kashem +2 more
openaire +2 more sources
ChemInform, 1995
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. HARADA +3 more
openaire +1 more source
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. HARADA +3 more
openaire +1 more source
Reactivity of Sulphonyloxyl Groups with Halides in the Carbohydrate Series
Nature, 1958IT has recently been shown1 that refluxing 6-O-mesyl-l : 2-3 : 4-di-O-isopropylidene-D-galacto-pyranose2 (i) and 3 : 5-O-benzylidene-6-O-mesyl-l : 2-O-isopropylidene-D-glucofuranose3 (ii) with potassium fluoride in ethanediol, yields the 6-deoxy-6-fluoro-D-galactopyranose and D-glucofuranose derivatives, respectively.
openaire +2 more sources
Blood Group Antigens: Blood Group Carbohydrate Antigens
2009The most popular blood group antigen system, ABO antigens had been known to consist of alpha1,2-fucosylated galactose substituted with alpha1,3-N-acetylgalactosamine (A) or galactose (B). These biochemical results were clearly confirmed and further investigated by the molecular cloning of blood group A synthase cDNA (Yamamoto et al. 1990a, 1990b).
Koichi Furukawa +2 more
openaire +1 more source
Regioselective O-arylation of 6-hydroxy groups in carbohydrates
Carbohydrate ResearchWe report an efficient method for regioselective O-arylation of the 6-hydroxy group of carbohydrates. The reaction involves a nucleophilic aromatic substitution reaction (SNAr) using electron-deficient arenes under mild conditions. Regioselectively monoarylated carbohydrate derivative was produced smoothly in the reaction by fine-tuning with the base ...
Soumyadip Dey +2 more
openaire +2 more sources
Carbohydrate-Based Macromolecular Biomaterials
Chemical Reviews, 2021Guosong Chen, Lu Su, Kongchang Wei
exaly
[Tumor-associated carbohydrate antigens related to blood group carbohydrates].
Gan to kagaku ryoho. Cancer & chemotherapy, 1986Biochemical studies have revealed the alteration of carbohydrate structures of cell membrane glycolipids, glycoproteins and cell secretory products associated with neoplastic transformation. Immunohistochemical examination of the blood group carbohydrate antigens in various cancer tissues have revealed the following results.
openaire +1 more source
Allyloxycarbonyl Group as a Protective Group for the Hydroxyl Group in Carbohydrates
Journal of Carbohydrate Chemistry, 1995Takeo Harada +3 more
openaire +1 more source