Results 261 to 270 of about 11,121 (307)

Biomimetic Chiral Pyridoxal and Pyridoxamine Catalysts

Chinese Journal of Chemistry, 2018
Vitamin B6 serves as universal co‐enzymes in biological systems. However, its catalytic power has not been applied into the area of asymmetric catalysis. Based on the core structure of vitamin B6, we have developed several types of pyridoxal and pyridoxamine catalysts with different structural skeletons and different electronic properties.
Jianfeng Chen, Yong Ethan Liu, Xing Gong, Limin Shi, Baoguo Zhao   +4 more
openaire   +2 more sources

Pyridoxine/pyridoxamine 5′‐phosphate oxidase (Sgll/PNPO) is important for DNA integrity and glucose homeostasis maintenance in Drosophila

Journal of Cellular Physiology, 2020
Pyridoxine/pyridoxamine 5′‐phosphate oxidase (PNPO) and pyridoxal kinase (PDXK) cooperate to produce pyridoxal 5′‐phosphate (PLP), the active form of vitamin B6.
E. Mascolo, Noemi Amoroso, I. Saggio, C. Merigliano, F. Vernì   +4 more
semanticscholar   +1 more source

Dendrimeric Pyridoxamine Enzyme Mimics

Journal of the American Chemical Society, 2003
PAMAM dendrimers from generations 1-6 were synthesized with pyridoxamine in their core. They transaminated pyruvic and phenylpyruvic acids in water to alanine and phenylalanine, respectively, with Michaelis-Menten kinetics and high effectiveness compared with simple pyridoxamine.
Lei, Liu, Ronald, Breslow
openaire   +2 more sources

Critical Vitamin Assessment: Pyridoxal, Pyridoxamine, and Pyridoxine Levels for Three Species of Raw and Cooked Fish Samples

, 2020
The amount of vitamin B6 in foods is reported in the literature as the sum of the pyridoxal (PL), pyridoxamine (PM), and pyridoxine (PN) forms. The levels of the PL, PM, and PN forms of vitamin B6 are different from each other.
Jale Çatak, Reyhan Çaman, Zafer Ceylan
semanticscholar   +1 more source

Synthese des Pyridoxamin‐5′‐triphosphorsäureesters und Pyridoxamin‐5′‐monophosphorsäureesters

Helvetica Chimica Acta, 1951
AbstractAus Pyridoxamin wurde durch Einwirkung von meta‐Phosphorsäure in der Wärme der Pyridoxamin‐5′‐triphosphorsäureester erhalten, der beim Erhitzen in Wasser 2 Mol H3PO4 verliert und in Pyridoxamin‐5′‐monophosphat übergeht. Pyridoxamin‐5′‐monophosphat wurde einerseits als phosphorsaures und chlorwasserstoffsaures Salz, andererseits als Calciumsalz ...
M. Viscontini, C. Ebnöther, P. Karrer
openaire   +1 more source

Pyridoxal Kinase from Leishmania donovani in complex with ADP and Pyridoxamine

, 2020
The enzyme pyridoxal kinase (PdxK) catalyzes the conversion of pyridoxal to pyridoxal-5′-phosphate (PLP) using ATP as the co-factor. The product pyridoxal-5′-phosphate plays a key role in several biological processes such as transamination ...
S. Are, S. Gatreddi, P. Jakkula, I. Qureshi   +3 more
semanticscholar   +1 more source

Transaminases for Pyridoxamine and Purines

Nature, 1952
BRAUNSTEIN'S1 demonstration of the transaminase reaction as a mode of formation of ammo-acids has been broadened recently to include a wide variety of transaminases in bacteria2, animal tissues3 and plants4. In the present communication, we wish to report the formation of compounds other than amino-acids by the transaminase reaction.
C F, GUNSALUS, J, TONZETICH
openaire   +2 more sources

Two homogeneous immunoassays for pyridoxamine

Journal of Immunological Methods, 1985
Protein conjugates of pyridoxal have been used to elicit anti-vitamin B6 antibodies in rabbits. These antibodies have been incorporated into 2 homogeneous assays systems, a spin immunoassay, using a paramagnetic derivative of the vitamin as ligand, and a fluorescence enzyme immunoassay, using beta-galactosidase conjugated to vitamin B6 as the indicator
D L, Brandon, J W, Corse, J J, Windle, L L, Layton   +3 more
openaire   +2 more sources

Pyridoxamine improves metabolic and microcirculatory complications associated with nonalcoholic fatty liver disease

Microcirculation, 2019
We investigated the protective effects of pyridoxamine against metabolic and microcirculatory complications in nonalcoholic fatty liver disease.
Evelyn Nunes Goulart da Silva Pereira, R. R. Silvares, E. E. I. Flores, Karine Lino Rodrigues, A. Daliry   +4 more
semanticscholar   +1 more source