منابع مشابه
Special Issue on Querying Biological Sequences
The sequencing and annotation of entire genomes has enriched the content of biological sequence databases such that new methods of sequence analysis, comparison and retrieval are being invented and rerun on an increasingly regular basis, generating new and more complete biological information. Examples include full genome comparisons and phylogenetic footprinting. Simple identification of homol...
متن کاملStudies on Biological Oxidations
Pyruvic acid is one of the most reactive substances among those of importance in cellular metabolism. When carbohydrate is split during fermentation, pyruvic acid is the main end-product of the resulting series of phosphorylated oxidation-reductions. It thus becomes the immediate source for the formation of both lactic acid and alcohol. Pyruvic acid is decarboxylated by yeast; it may react with...
متن کاملStudies on Biological Oxidations
Introduction ........................................................ 691 Methods ............................................................ 693 Oxidation of carbohydrates by gonococci ............................ 694 “ “ hydroxy acids .......................................... 695 “ “ ketonic “ .......................................... 698 Organic acids and other substrates not oxidized by ...
متن کاملPhytochemical and biological studies on goniothalamus spp. in Borneo
Goniothalamus spp. are widely distributed is the island of Borneo. About 40 species of Goniothalamus have been recorded in Borneo. Goniothalamus spp. are widely used in traditional medicinal practices in Borneo especially in treating diarrhea, fever, skin diseases, antidotes and most commonly used as postparturation aids and as abortifacient. Some of the species are also being used as natural i...
متن کاملSynthesis, Characterization, and Biological Activity Studies on Fanlizhicyclopeptide A
The synthesis of a proline-rich cyclic heptapeptide, fanlizhicyclopeptide A (8), previouslyisolated from the fruits of Annona squamosa (sugar-apples), is described via coupling oftetrapeptide l-prolyl-l-tyrosyl-l-leucyl-l-proline methyl ester with tripeptide Boc-glycyl-lvalyl-l-proline followed by cyclization of the linear fragment having seven amino acid units.Structure of the synthesized cycl...
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ژورنال
عنوان ژورنال: Nature
سال: 1927
ISSN: 0028-0836
DOI: 10.1038/119004b0