3-o-methyl sugars as constituents of glycoproteins. identification of 3-o-methylgalactose and 3-o-methylmannose in pulmonate gastropod haemocyanins....g.l.c.-mas spectrometry of the corresponding trimethylsilyl methyl glycosides and the alditol acetates, and by co-chromatography with the synthetic reference substances
16s ribosomal rna of escherichia coli contains a n2-methylguanosine at 27 nucleotides from the 3' end.... In vivo labeling with (3H)methionine shows that this G is methylated and co-chromatography with markers reveals that it is N2-methylguanosine
Chemical constituents of the mexican mistletoe (psittacanthus calyculatus)...fraction of an aqueous extract of a sample of Psittacanthus calyculatus collected from the host plant Prosopsis laevigata (Smooth Mesquite) using several techniques, including co-chromatography coupled with UV detection, chromatographic purifications and IR, NMR and MS studies, resulted in the identification of gallic acid, two flavonol-3-biosides and...
Flavonol glycosides from leaves of strychnos variabilis... YThe structures were established by TLC (co-chromatography), UV, NMR ,FAB-MS, hydrolytic and chemical methods
