Results 11 to 20 of about 38,650 (260)

Pyridoxal-5′-phosphate-dependent catalytic antibodies [PDF]

open access: yesApplied Biochemistry and Biotechnology, 2018
Cofactors—i.e., metal ions and coenzymes—extend the catalytic scope of enzymes and might have been among the first biological catalysts. They may be expected to efficiently extend the catalytic potential of antibodies.
Christen, Philipp, Gramatikova, Svetlana
core   +8 more sources

A New Synthesis of Pyridoxal-5-phosphate [PDF]

open access: bronzeBulletin of the Chemical Society of Japan, 1968
Abstract By the hydrolysis of pyridoxal-5-phosphate Schiff bases, pyridoxal-5-phosphate was prepared in a crystalline form without any further purification. Pyridoxal-5-phosphate Schiff bases were prepared in good yields by the phosphorylation of pyridoxal Scruff bases and were easily purified by alkali-acid reprecipitation.
Masaru Iwanami   +2 more
openalex   +4 more sources

Association between serum pyridoxal 5′-phosphate levels and chronic obstructive pulmonary disease: findings based on NHANES 2005–2010 [PDF]

open access: yesFrontiers in Nutrition
ObjectiveVitamin B6 is involved in regulating a variety of biological reactions in cell metabolism, and possesses antioxidant and anti-inflammatory biological functions.
Yanbin Liu, Jun Yan
doaj   +2 more sources

Immediate-type hypersensitivity to pyridoxal 5'- phosphate: Study of in vivo and in vitro cross-reactivity and identification of the antigenic determinant

open access: goldAllergology International, 2001
Background: A case in which a 45-year-old female patient with peritonitis experienced immediate-type hypersensitivity on two occasions after administration of preparations containing six different medications was referred to us for closer inspection ...
Masako Osada   +5 more
doaj   +2 more sources

A novel synthesis of pyridoxal-5'-phosphate.

open access: bronzeAgricultural and Biological Chemistry, 1977
Pyridoxal-5′-phosphate was synthesized in excellent yield by phosphorylation of 1-secondaryammo-l,3-dihydro-7-hydroxy-6-methyl-furo(3,4-c)pyridine which was readily obtained by a condensation reaction between pyridoxal and a secondary amine.
Kunio Nakagawa   +3 more
openalex   +4 more sources

Inactivation of Rhodanese by Pyridoxal 5′‐Phosphate [PDF]

open access: bronzeEuropean Journal of Biochemistry, 1975
Pyridoxal 5′‐phosphate and other aromatic aldehydes inactivate rhodanese. This inactivation reaches higher extents if the enzyme is in the sulfur‐free form. The identification of the reactive residue as an amino group has been made by spectrophotometric determination of the 5′‐phosphorylated pyridoxyl derivative of the enzyme.
C. Cannella   +4 more
openalex   +4 more sources

TRANSFER OF PYRIDOXAL 5'-PHOSPHATE FROM ALBUMIN-PYRIDOXAL 5'-PHOSPHATE COMPLEX TO APO-ASPARTATE AMINOTRANSFERASE

open access: goldJournal of Nutritional Science and Vitaminology, 1973
Pyridoxal 5'-phosphate(PLP)is known to combine with bovine serum albumin to form a (1:1) complex which scarcely dissociates, even when subjected to intensive dialysis. When this complex was incubated with apo-aspartate aminotransferase (apoCOT)for an appropriate time and the preincubated mixture then submitted to the usual GOT assay, the appearance of ...
Fuminori Masugi   +3 more
openalex   +5 more sources

Pyridoxal 5'-Phosphate Biosynthesis by Pyridox-(am)-ine 5'-Phosphate Oxidase: Species-Specific Features. [PDF]

open access: yesInt J Mol Sci
Enzymes reliant on pyridoxal 5'-phosphate (PLP), the metabolically active form of vitamin B6, hold significant importance in both biology and medicine. They facilitate various biochemical reactions, particularly in amino acid and neurotransmitter metabolisms. Vitamin B6 is absorbed by organisms in its non-phosphorylated form and phosphorylated
Rivero M, Novo N, Medina M.
europepmc   +5 more sources

Simultaneous Determination of Underivatized Vitamin B1 and B6 in Whole Blood by Reversed Phase Ultra High Performance Liquid Chromatography Tandem Mass Spectrometry. [PDF]

open access: yesPLoS ONE, 2015
Vitamin B1 (thiamine-diphosphate) and B6 (pyridoxal-5'phosphate) are micronutrients. Analysis of these micronutrients is important to diagnose potential deficiency which often occurs in elderly people due to malnutrition, in severe alcoholism and in ...
Johan Puts   +3 more
doaj   +1 more source

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