Results 61 to 70 of about 39,843 (225)
Nature Communications, 2023 Cobalamin-dependent methionine synthase (MS) is a key enzyme in methionine and folate one-carbon metabolism. MS is a large multi-domain protein capable of binding and activating three substrates: homocysteine, folate, and S-adenosylmethionine for ...
Johnny Mendoza +3 more
doaj +1 more source
Inherited metabolic epilepsies–established diseases, new approaches
Epilepsia Open, EarlyView.Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley +1 more source
Elevated Levels of Methylmalonate and Homocysteine in Parkinson's Disease, Progressive Supranuclear Palsy and Amyotrophic Lateral Sclerosis [PDF]
, 2010 Background/Aims: Increasing evidence suggests that elevated levels of homocysteine (Hcy) and methylmalonate (MMA) may be involved in the pathogenesis of neurodegenerative diseases. Methods: The urine levels of MMA and serum levels of Hcy as well as folic
Bötzel, Kai +4 more
core +1 more source
Synthetic Biology and Food: Applications and Prospects
Food Bioengineering, EarlyView.Synthetic biology would provide revolutionary technological solutions to produce new food and feed components, such as artificial starch, animo acids, microbial protein, lipids, sweeteners, vitamins.
Yi‐Heng P. Job Zhang
wiley +1 more source
Scientific Reports, 2021 Metformin-treated diabetics (MTD) showed a decrease in cobalamin, a rise in homocysteine, and methylmalonic acid, leading to accentuated diabetic peripheral neuropathy (DPN). This study aimed to determine whether or not metformin is a risk factor for DPN.
Manal Mohammed Hashem +3 more
doaj +1 more source
Impact of fortifiers on donor milk nutrient composition: An experimental study
Journal of Parenteral and Enteral Nutrition, EarlyView.Abstract Background Preterm infants frequently require human milk fortification to meet their unique nutrients requirements. How commercial fortifiers change essential macronutrients and micronutrients in donor human milk has not been well‐studied. Methods Our sampling frame included milk from approved United States milk bank donors (n = 400), measured
Kimberly Mansen +5 more
wiley +1 more source
Uneven distribution of cobamide biosynthesis and dependence in bacteria predicted by comparative genomics. [PDF]
, 2019 The vitamin B12 family of cofactors known as cobamides are essential for a variety of microbial metabolisms. We used comparative genomics of 11,000 bacterial species to analyze the extent and distribution of cobamide production and use across bacteria ...
Haft, David R +6 more
core +1 more source
Protein dynamics in the reductive activation of a B12-containing enzyme [PDF]
, 2017 B12-dependent proteins are involved in methyl transfer reactions ranging from the biosynthesis of methionine in humans to the formation of acetyl-CoA in anaerobic bacteria.
Goetzl, Sebastian +6 more
core +1 more source
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT BorF is a short‐chain flavin reductase from a desert soil bacterium that uses NADH to reduce FAD to FADH2, which is used by the tryptophan‐6‐halogenase BorH to chlorinate tryptophan in the biosynthetic pathway of borregomycin A. The X‐ray crystal structure of BorF bound to FAD was solved to 2.37 Å by molecular replacement.
Zheng Ma +3 more
wiley +1 more source
Veterinary Sciences, 2022 Serum concentrations of feline pancreatic lipase immunoreactivity (fPLI), feline trypsin-like immunoreactivity (fTLI), and cobalamin are commonly used for the diagnostic investigation of cats with gastrointestinal signs.
Evangelia M. Stavroulaki +5 more
doaj +1 more source