Assay for lipid peroxides in animal tissues by thiobarbituric acid reaction

https://pubs.rsc.org/en/content/articlepdf/2019/NP/C8NP00092A

Marine natural products.

Advances in flavonoid research since 1992.

The short history, specific features and future prospects of research of microbial metabolites, including antibiotics and other bioactive metabolites, are summarized. The microbial origin, diversity of producing species, functions and various bioactivities of metabolites, unique features of their chemical structures are discussed, mainly on the basis of statistical data. The possible numbers of metabolites may be discovered in the future, the problems of dereplication of newly isolated compounds as well as the new trends and prospects of the research are also discussed.

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Bioactive microbial metabolites.

Asymmetric enamine catalysis.

Borates are known to interact with carbohydrate moieties expressed on the surface of biological membranes of a variety of cells, viruses, bacteria, and fungi. This study revealed the anomalous binding profile of borate in aqueous solution with N-acetylneuraminic acid (Neu5Ac, sialic acid) as a potential receptor site on the surfaces of biological membranes using 11B, 1H, 13C, and 15N nuclear magnetic resonance spectroscopies. 3-(Propionamido)phenylboronic acid (PAPBA) was chosen as the model borate compound. The equilibrium constant (K) for Neu5Ac binding to PAPBA was compared with those for glucose, mannose, and galactose, which are the major carbohydrate constituents of glycoproteins and glycolipids expressed on biological membranes. In the Neu5Ac/PAPBA system, the unusual pH dependency of the K values, a decrease in K with increasing pH, was observed, suggesting the formation of a trigonal-formed complex stabilized by the coordination of an amide group of Neu5Ac at the C-5 position to the boron atom, f...

Anomalous binding profile of phenylboronic acid with N-acetylneuraminic acid (Neu5Ac) in aqueous solution with varying pH.

Trichothecene 3-o-acetyltransferase protects both the producing organism and transformed yeast from related mycotoxins : cloning and characterization of tri101

(1989). Structure of a Tuber-inducing Stimulus from Potato Leaves (Solanum tuberosum L.) Agricultural and Biological Chemistry: Vol. 53, No. 10, pp. 2835-2837.

Hiroyuki Koshino

Papers

Anomalous binding profile of phenylboronic acid with N-acetylneuraminic acid (Neu5Ac) in aqueous solution with varying pH.

Trichothecene 3-o-acetyltransferase protects both the producing organism and transformed yeast from related mycotoxins : cloning and characterization of tri101

Structure of a Tuber-inducing Stimulus from Potato Leaves (Solanum tuberosum L.)

Cytoxazone: A Novel Cytokine Modulator Containing a 2-Oxazolidinone Ring Produced by Streptomyces sp.

Fusarium Tri4 encodes a key multifunctional cytochrome P450 monooxygenase for four consecutive oxygenation steps in trichothecene biosynthesis.