Results 101 to 110 of about 43,493 (297)
The FEBS Journal, EarlyView.Pyridoxal 5′‐phosphate (PLP) homeostasis relies on salvage enzymes, yet key metabolic branches remain undefined. We identify AKR1C isozymes as previously undescribed contributors that convert pyridoxal into pyridoxine or 4‐pyridoxolactone through reductase and dehydrogenase activities.
Nayu Kito +8 more
wiley +1 more source
Frontiers in Vitamin Research: New Antibodies, New Data
The Scientific World Journal, 2011 Since 2004, the anatomical distribution of vitamins in the monkey brain, studied using immunohistochemical techniques and new tools (specific antisera that discriminate different vitamins reasonably well), has been an ongoing research field.
Rafael Coveñas +6 more
doaj +1 more source
The FEBS Journal, EarlyView.The genes PH0137, PH0138, and PH0140 form a cluster in the genome of Pyrococcus horikoshii. The PH0140 gene encodes a transcription factor identified as a d‐amino acid‐responsive regulatory protein (DARP). In feast mode, l‐Ile‐bound DARP binds to the promoter and represses transcription of PH0137 and PH0138. In famine mode, DARP binds to d‐allo‐Ile and
Ryushi Kawakami +6 more
wiley +1 more source
Pyridoxal phosphate: biosynthesis and catabolism
, 2011 Vitamin B(6) is an essential cofactor that participates in a large number of biochemical reactions. Pyridoxal phosphate is biosynthesized de novo by two different pathways (the DXP dependent pathway and the R5P pathway) and can also be salvaged from the ...
Jeremiah Hanes +9 more
core +1 more source
Prebiotic aqueous reactions catalyzed by native nickel without hydrogen
The FEBS Journal, EarlyView.Serpentinizing (H2‐producing) hydrothermal vents are candidate environments for metabolic origin. They generate highly reducing conditions that convert CO2 to formate and methane in abiotic reactions resembling reactions of the acetyl‐CoA pathway of CO2 fixation. They also contain natural catalysts. Native nickel (Ni0), like Fe0, Co0, and their alloys,
Carolina Garcia Garcia +2 more
wiley +1 more source
Acta Pharmaceutica, 2019 With the increased number of multi-drug formulations, there is a need to develop new methods for simultaneous determinations of drugs. A precise, accurate and reliable liquid chromatographic method was developed for simultaneous determination of ...
Ali Amir +6 more
doaj +1 more source
Determination of pyridoxal phosphate and pyridoxal by the cyanohydrin method
Pyridoxal phosphate is a coenzyme in about 50 known enzymatic reactions. A simple and accurate method for the determination of pyridoxal phosphate would be desirable because it could provide a means to assess the nutritional status of vitamin B₆ in the ...
Chang, Susan Shao-Shu King
core
The FEBS Journal, EarlyView.Vitamin B6 is a critical molecule for plant metabolism and development. Rsr4‐1, a loss‐of‐function mutant in a vitamin B6 biosynthesis gene, has a distinct short root phenotype. Here we describe five novel suppressor mutants with an rsr4‐1 background that have normalized root growth and distinct phenotypic and molecular characteristics, representing a ...
Marcelina Parra +4 more
wiley +1 more source
Natural Product CommunicationsObjective: This study aims to assess the interaction of ascorbic acid (AA) and pyridoxal-5-phosphate (PLP) with serum protein for binding affinity. These vitamins are investigated for the glucose-induced glycation products for 28 days at 37 °C.
Dinesh Kumar +3 more
doaj +1 more source