Results 221 to 230 of about 150,374 (260)

Synthesis of analogs of pyridoxal 5?-phosphate and pyridoxamine 5?-phosphate

Chemistry of Heterocyclic Compounds, 1972
The following analogs of pyridoxamine 5′-phosphate (PAMP) have been synthesized by the direct phosphorylation of the corresponding amines: 2-nor-PAMP, 6-methyl-2-nor-PAMP, and 6-methyl-PAMP. A method for the synthesis of analogs of pyridoxal 5′-phosphate (PLP) by the phosphorylation of the Schiff's bases of the corresponding aldehydes with p ...
L. V. Ionova, M. Ya. Karpeiskii, N. A. Drobinskaya, V. L. Florent'ev   +3 more
openaire   +2 more sources

Hierarchical hollow hydroxyapatite microspheres: microwave-assisted rapid synthesis by using pyridoxal-5'-phosphate as a phosphorus source and application in drug delivery.

Chemistry - An Asian Journal, 2013
Three-dimensional (3D) hydroxyapatite (HAP) hierarchical nanostructures, in particular hollow nanostructures, have attracted much attention owing to their potential applications in many biomedical fields.
Xinyu Zhao, Ying-Jie Zhu, C. Qi, Feng Chen, Bingqiang Lu, Jing Zhao, Jin Wu   +6 more
semanticscholar   +1 more source

Fluorimetric determination of beryllium with pyridoxal-5-phosphate

Talanta, 1985
A simple, rapid and selective method for the determination of beryllium with pyridoxal-5-phosphate has been developed. The system is only fluorescent (lambda(ex) 360, lambda(em) 460 nm) in the presence of a nitrogenous base such as ammonia, ethylenediamine or pyridine, owing to the possible formation of a ternary complex.
Agustina Gómez-Hens, A Petidier, Soledad Rubio, Miguel Valcárcel   +3 more
openaire   +3 more sources

A pyridoxal 5′-phosphate-dependent Mannich cyclase

Nature Catalysis, 2023
Jinmin Gao, Shaonan Liu, Chengui Zhou, Darwin Lara, Y. Zou, Yang Hai   +5 more
semanticscholar   +1 more source

NMR studies of protonation and hydrogen bond states of internal aldimines of pyridoxal 5'-phosphate acid-base in alanine racemase, aspartate aminotransferase, and poly-L-lysine.

Journal of the American Chemical Society, 2013
Using (15)N solid-state NMR, we have studied protonation and H-bonded states of the cofactor pyridoxal 5'-phosphate (PLP) linked as an internal aldimine in alanine racemase (AlaR), aspartate aminotransferase (AspAT), and poly-L-lysine. Protonation of the
Monique Chan-Huot, Alexandra Dos, R. Zander, Shasad Sharif, P. Tolstoy, S. Compton, E. Fogle, M. Toney, I. Shenderovich, G. Denisov, H. Limbach   +10 more
semanticscholar   +1 more source

Über Pyridoxal‐5′‐phosphat (Codecarboxylase)

Helvetica Chimica Acta, 1951
AbstractEs wird eine etwas vereinfachte Darstellung für Pyridoxal‐5′‐phosphat und dessen Magnesium‐ und Calciumsalze beschrieben.
M. Viscontini, P. Karrer, C. Ebnöther
openaire   +2 more sources

Thermodynamics properties of pyridoxal 5 phosphate

Journal of Solution Chemistry, 1986
The ionization constants and heats of ionization of pyridoxal 5′ phosphate groups in the pH range 2–10 have been determined by potentiometric and calorimetric techniques at 20, 25, 30, and 37°C in 0.1M KCl.
Gerardo R. Echevarria, F. Garcia Blanco, Margarita Menéndez, M. A. Garcia Del Vado, José Laynez   +4 more
openaire   +2 more sources

Interaction of pyridoxal 5′ phosphate and malate dehydrogenase

Biochemical and Biophysical Research Communications, 1971
Abstract Mitochondrial malate dehydrogenase (L-malate-NAD + oxidoreductase, E.C.1.1.1.37) of porcine heart is totally and irreversibly inhibited by pyridoxal-5′-phosphate. The course of inactivation appears to be biphasic in nature. The coenzyme, NADH, was observed to fully protect the enzyme from inactivation, suggesting interaction at or near the ...
J.H. Harrison, F.J. Yost
openaire   +3 more sources

Pyridoxal–5′–Phosphate and Alkaline Phosphatase [PDF]

Hepatology, 1986
Markedly increased circulating concentrations of pyridoxal–5′–phosphate (PLP) were found in each of 14 patients representing all clinical forms of hypophosphatasia, an inborn error characterized by deficient activity of the tissue–nonspecific (bone/liver/kidney) isoenzyme of alkaline phosphatase (AP).
openaire   +1 more source

Role of the pyridine nitrogen in pyridoxal 5'-phosphate catalysis: activity of three classes of PLP enzymes reconstituted with deazapyridoxal 5'-phosphate.

Journal of the American Chemical Society, 2011
Pyridoxal 5'-phosphate (PLP; vitamin B(6))-catalyzed reactions have been well studied, both on enzymes and in solution, due to the variety of important reactions this cofactor catalyzes in nitrogen metabolism.
W. R. Griswold, M. Toney
semanticscholar   +1 more source