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Sachin Rustgi et al.
PloS one, 9(6), e100998-e100998 (2014-06-27)
Extensive application of imidazolinone (IMI) herbicides had a significant impact on barley productivity contributing to a continuous decline in its acreage over the last two decades. A possible solution to this problem is to transfer IMI-resistance from a recently characterized
Trace Thome et al.
American journal of physiology. Cell physiology, 317(4), C701-C713 (2019-07-11)
Chronic kidney disease (CKD) leads to increased skeletal muscle fatigue, weakness, and atrophy. Previous work has implicated mitochondria within the skeletal muscle as a mediator of muscle dysfunction in CKD; however, the mechanisms underlying mitochondrial dysfunction in CKD are not
Victoria I Bunik et al.
International journal of molecular sciences, 21(11) (2020-05-30)
Genetic up-regulation of mitochondrial 2-oxoglutarate dehydrogenase is known to increase reactive oxygen species, being detrimental for cancer cells. Thiamine diphosphate (ThDP, cocarboxylase) is an essential activator of the enzyme and inhibits p53-DNA binding in cancer cells. We hypothesize that the
Gholamali Jafari et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(45), E6148-E6157 (2015-10-28)
Mitochondria play an important role in numerous diseases as well as normative aging. Severe reduction in mitochondrial function contributes to childhood disorders such as Leigh Syndrome, whereas mild disruption can extend the lifespan of model organisms. The Caenorhabditis elegans isp-1
E Cetin et al.
Minerva medica, 104(1), 93-101 (2013-02-09)
The aim of the study was to evaluate circulatory AGE-peptide levels in diabetic nephropathy and to observe the effects of thiamine (vitamin B1) and pyridoxine (vitamin B6) therapy. Type 2 diabetic patients (N.=57) were divided into two groups as "with
Tamaki Endoh et al.
Analytical chemistry, 87(15), 7628-7635 (2015-07-01)
Conformational transitions of biomolecules in response to specific stimuli control many biological processes. In natural functional RNA switches, often called riboswitches, a particular RNA structure that has a suppressive or facilitative effect on gene expression transitions to an alternative structure
Karine Meisser Redeuil et al.
Journal of chromatography. A, 1422, 89-98 (2015-11-03)
This manuscript reports a validated analytical approach for the quantification of 21 water soluble vitamins and their main circulating forms in human plasma. Isotope dilution-based sample preparation consisted of protein precipitation using acidic methanol enriched with stable isotope labelled internal
Forest H Andrews et al.
Biochemistry, 52(18), 3028-3030 (2013-04-24)
It is widely accepted that, in thiamin diphosphate (ThDP)-dependent enzymes, much of the rate acceleration is provided by the cofactor. Inter alia, the reactive conformation of ThDP, known as the V-conformation, has been attributed to the presence of a bulky
Thiamine pyrophosphate, a coenzyme of transketolase
Racker E, et al.
Journal of the American Chemical Society, 75(4), 1010-1011 (1953)
Michael Moulin et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(36), 14622-14627 (2013-08-21)
Thiamin (vitamin B1) is an essential micronutrient needed as a cofactor for many central metabolic enzymes. Animals must have thiamin in their diet, whereas bacteria, fungi, and plants can biosynthesize it de novo from the condensation of a thiazole and
Leandro José de Assis et al.
FEMS yeast research, 13(6), 518-528 (2013-05-23)
Deletion of SIT4 phosphatase decreased the pyruvate decarboxylase activity, which is essential for directing the glucose flux to ethanol production. Concomitantly, a reduction in the fermentative capacity was observed. As pyruvate decarboxylase expression was not altered, its post-translational phosphorylation was
Elena Cressina et al.
Biochemical Society transactions, 39(2), 652-657 (2011-03-25)
Riboswitches are regions of mRNA to which a metabolite binds in the absence of proteins, resoulting in alteration of transcription, translation or splicing. The most widespread forms of riboswitches are those responsive to TPP (thiamine pyrophosphate) the active form of
Robert van Lis et al.
Plant physiology, 161(1), 57-71 (2012-11-17)
Eukaryotic algae have long been known to live in anoxic environments, but interest in their anaerobic energy metabolism has only recently gained momentum, largely due to their utility in biofuel production. Chlamydomonas reinhardtii figures remarkably in this respect, because it
Anand Balakrishnan et al.
Journal of the American Chemical Society, 134(45), 18644-18655 (2012-10-24)
Spectroscopic identification and characterization of covalent and noncovalent intermediates on large enzyme complexes is an exciting and challenging area of modern enzymology. The Escherichia coli pyruvate dehydrogenase multienzyme complex (PDHc), consisting of multiple copies of enzymic components and coenzymes, performs
Enhancement of thiamine release during synthetic mutualism between Chlorella sorokiniana and Azospirillum brasilense growing under stress conditions
Palacios OA, et al.
Journal of Applied Phycology, 28(3), 1521-1531 (2016)
Nucleosidediphosphatase activity in the Golgi apparatus and its usefulness for cytological studies.
A B NOVIKOFF et al.
Proceedings of the National Academy of Sciences of the United States of America, 47, 802-810 (1961-06-15)
Tingfeng Li et al.
Bioorganic chemistry, 43, 2-14 (2012-04-27)
This review examines the mechanisms propelling cofactor-independent, organic cofactor-dependent and metal-dependent decarboxylase chemistry. Decarboxylation, the removal of carbon dioxide from organic acids, is a fundamentally important reaction in biology. Numerous decarboxylase enzymes serve as key components of aerobic and anaerobic
Forest H Andrews et al.
The FEBS journal, 280(24), 6395-6411 (2013-07-31)
For almost 20 years, site-saturation mutagenesis (SSM) has been used to evolve stereoselective enzymes as catalysts for synthetic organic chemistry. Much of this work has focused on enzymes such as lipases and esterases, although the range is rapidly expanding. By contrast
Praveen Kumar Agarwal et al.
Bioresource technology, 192, 90-96 (2015-05-30)
The aim of the study was to increase production of (R)-PAC by altering carboligation activity of Pdc in Saccharomyces cerevisiae. Pdc1 activity was modified by over-expression as well as changing the rate of decarboxylation and carboligation by site specific mutation
Danzil Joseph et al.
Life sciences, 105(1-2), 31-42 (2014-04-22)
Although acute hyperglycemic (AHG) episodes are linked to lower glucose uptake, underlying mechanisms remain unclear. We hypothesized that AHG triggers reactive oxygen species (ROS) production and increases non-oxidative glucose pathway (NOGP) activation, i.e. stimulation of advanced glycation end products (AGE)
Kristine Rose M Ramos et al.
Bioprocess and biosystems engineering, 37(12), 2505-2513 (2014-06-15)
An engineered Escherichia coli strain was developed for enhanced isoprene production using D-galactose as substrate. Isoprene is a valuable compound that can be biosynthetically produced from pyruvate and glyceraldehyde-3-phosphate (G3P) through the methylerythritol phosphate pathway (MEP). The Leloir and De
Shilpa Thakur et al.
BioFactors (Oxford, England), 41(4), 232-241 (2015-07-15)
Complex regulatory mechanisms control the expression of folate transporters within cells. Liver is the primary reserve of the folate stores within the body. As excessive alcohol consumption or inefficient dietary folate intake are known to create folate deficiency, so therefore
Hetalben Patel et al.
Biochemistry, 53(13), 2145-2152 (2014-03-19)
Identification of enzyme-bound intermediates via their spectroscopic signatures, which then allows direct monitoring of the kinetic fate of these intermediates, poses a continuing challenge. As an electrophilic covalent catalyst, the thiamin diphosphate (ThDP) coenzyme forms a number of noncovalent and
J Stein et al.
Alimentary pharmacology & therapeutics, 40(6), 582-609 (2014-08-01)
Obesity surgery is acknowledged as a highly effective therapy for morbidly obese patients. Beneficial short-term effects on common comorbidities are practically undisputed, but a growing data pool from long-term follow-up reveals increasing evidence of potentially severe nutritional and pharmacological consequences.
Sławomir Michalak et al.
Przeglad lekarski, 69(10), 781-784 (2013-02-21)
The expression of the most important chaperone protein - Hsp70 and autoimmunity directed against it is a risk factor of cardiovascular diseases, increased in subjects with alcohol use disorder (AUD). The aim of the study was to evaluate the level
Sang-Choon Lee et al.
Enzyme and microbial technology, 52(1), 54-59 (2012-12-04)
The catabolic acetolactate synthase (cALS) of Enterococcus faecalis V583 was cloned, expressed in Escherichia coli, and purified to homogeneity. The purified protein had a molecular weight of 60 kDa. The cALS of E. faecalis is highly homologous with other cALSs
Qiang Zhang et al.
Drug metabolism and disposition: the biological fate of chemicals, 42(10), 1656-1662 (2014-07-27)
The clinical development of fedratinib, a Janus kinase (JAK2) inhibitor, was terminated after reports of Wernicke's encephalopathy in myelofibrosis patients. Since Wernicke's encephalopathy is induced by thiamine deficiency, investigations were conducted to probe possible mechanisms through which fedratinib may lead
Samir P Patel et al.
Experimental neurology, 257, 95-105 (2014-05-09)
Mitochondrial dysfunction is becoming a pivotal target for neuroprotective strategies following contusion spinal cord injury (SCI) and the pharmacological compounds that maintain mitochondrial function confer neuroprotection and improve long-term hindlimb function after injury. In the current study we evaluated the
Effects of anti-CD44 monoclonal antibody IM7 carried with chitosan polylactic acid-coated nano-particles on the treatment of ovarian cancer
Yang Y, et al.
Oncology Letters, 13(1), 99-104 (2017)
Kazuto Nosaka et al.
FEMS microbiology letters, 330(2), 140-147 (2012-03-13)
In Saccharomyces cerevisiae, genes involved in thiamin pyrophosphate (TPP) synthesis (THI genes) and the pyruvate decarboxylase structural gene PDC5 are transcriptionally induced in response to thiamin starvation. Three positive regulatory factors (Thi2p, Thi3p, and Pdc2p) are involved in the expression
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