613 results match your criteria fbpase

The In Vitro Interaction of 12-Oxophytodienoic Acid and Related Conjugated Carbonyl Compounds with Thiol Antioxidants.

Biomolecules 2021 Mar 18;11(3). Epub 2021 Mar 18.

Department of Biochemistry and Physiology of Plants, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany.

α,β-unsaturated carbonyls interfere with numerous plant physiological processes. One mechanism of action is their reactivity toward thiols of metabolites like cysteine and glutathione (GSH). This work aimed at better understanding these interactions. Read More

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Major ceRNA regulation and key metabolic signature analysis of intervertebral disc degeneration.

BMC Musculoskelet Disord 2021 Mar 6;22(1):249. Epub 2021 Mar 6.

Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, China.

Background And Objective: Intervertebral disc degeneration (IDD) is a complex multifactorial and irreversible pathological process. In IDD, multiple competing endogenous RNAs (ceRNA, including mRNA, lncRNA, and pseudogenes) can compete to bind with miRNAs. However, the potential metabolic signatures in nucleus pulposus (NP) cells remain poorly understood. Read More

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Role of PFKFB3 and PFKFB4 in Cancer: Genetic Basis, Impact on Disease Development/Progression, and Potential as Therapeutic Targets.

Cancers (Basel) 2021 Feb 22;13(4). Epub 2021 Feb 22.

Department of Histology and Embryology, Wroclaw Medical University, 50-368 Wroclaw, Poland.

Glycolysis is a crucial metabolic process in rapidly proliferating cells such as cancer cells. Phosphofructokinase-1 (PFK-1) is a key rate-limiting enzyme of glycolysis. Its efficiency is allosterically regulated by numerous substances occurring in the cytoplasm. Read More

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February 2021

Evaluation of CBSX Proteins as Regulators of the Chloroplast Thioredoxin System.

Front Plant Sci 2021 16;12:530376. Epub 2021 Feb 16.

Department of Frontier Life Sciences, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, Japan.

The chloroplast-localized cystathionine β-synthase X (CBSX) proteins CBSX1 and CBSX2 have been proposed as modulators of thioredoxins (Trxs). In this study, the contribution of CBSX proteins to the redox regulation of thiol enzymes in the chloroplast Trx system was evaluated both and . The biochemical studies evaluated whether CBSX proteins alter the specificities of classical chloroplastic Trx and Trx for their target proteins. Read More

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February 2021

Effects of ethylenediurea (EDU) on apoplast and chloroplast proteome in two wheat varieties under high ambient ozone: an approach to investigate EDU's mode of action.

Protoplasma 2021 Feb 28. Epub 2021 Feb 28.

Plant Ecology and Climate Change Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India.

Rising tropospheric ozone (O) is a serious threat to plants and animals in the present climate change scenario. High tropospheric O has the capability to disrupt cellular organelles leading to impaired photosynthesis and significant yield reduction. Apoplast and chloroplast are two important cellular components in a plant system. Read More

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February 2021

Structural studies of human muscle FBPase.

Acta Biochim Pol 2021 Jan;68(1):5-14

1Institute of Genetics and Microbiology, Wroclaw University, Wrocław, Poland; 2Klodzko School of Medicine, Kłodzko, Poland.

Muscle fructose-1,6-bisphosphatase (FBPase), which catalyzes the hydrolysis of fructose-1,6-bisphosphate (F1,6BP) to fructose-6-phosphate (F6P) and inorganic phosphate, regulates glucose homeostasis by controlling the glyconeogenic pathway. FBPase requires divalent cations, such as Mg2+, Mn2+, or Zn2+, for its catalytic activity; however, calcium ions inhibit the muscle isoform of FBPase by interrupting the movement of the catalytic loop. It has been shown that residue E69 in this loop plays a key role in the sensitivity of muscle FBPase towards calcium ions. Read More

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January 2021

Glucose metabolism involved in PD-L1-mediated immune escape in the malignant kidney tumour microenvironment.

Cell Death Discov 2021 Jan 18;7(1):15. Epub 2021 Jan 18.

Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.

Programmed death receptor-ligand 1 (PD-L1) plays a crucial role in immune evasion by tumour cells. Most tumour cells exhibit energy dependency and acquire energy from glycolysis. However, the relationship between glucose metabolism and PD-L1 expression remains unclear. Read More

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January 2021

Calcium (Ca)-regulated exopolysaccharide biosynthesis in probiotic Lactobacillus plantarum K25 as analyzed by an omics approach.

J Dairy Sci 2021 Mar 15;104(3):2693-2708. Epub 2021 Jan 15.

Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing, P.R. China 100048. Electronic address:

Exopolysaccharide (EPS)-producing lactic acid bacteria have been widely used in dairy products, but how calcium, the main metal ion component in milk, regulates the EPS biosynthesis in lactic acid bacteria is not clear. In this study, the effect of Ca on the biosynthesis of EPS in the probiotic Lactobacillus plantarum K25 was studied. The results showed that addition of CaCl at 20 mg/L in a semi-defined medium did not affect the growth of strain K25, but it increased the EPS yield and changed the microstructure of the polymer. Read More

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Identification of genes associated with soluble sugar and organic acid accumulation in 'Huapi' kumquat (Fortunella crassifolia Swingle) via transcriptome analysis.

J Sci Food Agric 2021 Jan 8. Epub 2021 Jan 8.

College of Agronomy, Jiangxi Agricultural University, Nanchang, China.

Background: The levels and ratios of sugar and acid are important contributors to fruit taste. Kumquat is one of the most economically important citrus crops, but information on the soluble sugar and organic acid metabolism in kumquat is limited. Here, two kumquat varieties - 'Rongan' (RA) and its mutant 'Huapi' (HP) - were used to assess soluble sugar and organic acid accumulation and the related genes. Read More

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January 2021

Biochemical basis for redox regulation of chloroplast-localized phosphofructokinase from Arabidopsis thaliana.

Plant Cell Physiol 2021 Jan 8. Epub 2021 Jan 8.

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259-R1-8, Midori-ku, Yokohama, Japan.

Various proteins in plant chloroplasts are subject to thiol-based redox regulation, allowing light-responsive control of chloroplast functions. Most redox-regulated proteins are known to be reductively activated in the light in a thioredoxin (Trx)-dependent manner, but its regulatory network remains incompletely understood. Using a biochemical procedure, we here show that a specific form of phosphofructokinase (PFK) is a novel redox-regulated protein whose activity is suppressed upon the reduction. Read More

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January 2021

Long-term co-administration of sodium nitrite and sodium hydrosulfide inhibits hepatic gluconeogenesis in male type 2 diabetic rats: Role of PI3K-Akt-eNOS pathway.

Life Sci 2021 Jan 16;265:118770. Epub 2020 Nov 16.

Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address:

Objective: A deficiency in hydrogen sulfide (HS) and nitric oxide (NO) contributes to the development of type 2 diabetes (T2D). An inhibitory effect on liver gluconeogenesis has been reported in rats with T2D with co-administration of sodium nitrite and sodium hydrosulfide (NaSH); the underlying mechanisms have however not yet been elucidated. The aim of this study is to determine the long-term effects of co-administering sodium nitrite and NaSH on expression of genes involved in liver gluconeogenesis in rats with T2D. Read More

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January 2021

Insights Into the Regulation of the Expression Pattern of Calvin-Benson-Bassham Cycle Enzymes in C and C Grasses.

Front Plant Sci 2020 16;11:570436. Epub 2020 Oct 16.

School of Life Sciences, University of Essex, Colchester, United Kingdom.

C photosynthesis is characterized by the compartmentalization of the processes of atmospheric uptake of CO and its conversion into carbohydrate between mesophyll and bundle-sheath cells. As a result, most of the enzymes participating in the Calvin-Benson-Bassham (CBB) cycle, including RubisCO, are highly expressed in bundle-sheath cells. There is evidence that changes in the regulatory sequences of contribute to its bundle-sheath-specific expression, however, little is known about how the spatial-expression pattern of other CBB cycle enzymes is regulated. Read More

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October 2020

Selective autophagy regulates heat stress memory in by NBR1-mediated targeting of HSP90 and ROF1.

Autophagy 2020 Sep 24:1-16. Epub 2020 Sep 24.

Max Planck Institute of Molecular Plant Physiology , Potsdam-Golm, Germany.

In nature, plants are constantly exposed to many transient, but recurring, stresses. Thus, to complete their life cycles, plants require a dynamic balance between capacities to recover following cessation of stress and maintenance of stress memory. Recently, we uncovered a new functional role for macroautophagy/autophagy in regulating recovery from heat stress (HS) and resetting cellular memory of HS in . Read More

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September 2020

Effects of chronic glyphosate exposure on antioxdative status, metabolism and immune response in tilapia (GIFT, Oreochromis niloticus).

Comp Biochem Physiol C Toxicol Pharmacol 2021 Jan 28;239:108878. Epub 2020 Aug 28.

Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China; International Joint Research Laboratory for Fish Immunopharmacology, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China. Electronic address:

Glyphosate (Gly) is an active ingredient of herbicide, its underlying toxicity on fish is still unclear. The aim of this study was to evaluate chronic toxicity of Gly on tilapia via determining antioxidative status, metabolism, inflammation and immune response. The fish were exposed to different concentrations of Gly (0, 0. Read More

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January 2021

Biological evaluation and SAR analysis of novel covalent inhibitors against fructose-1,6-bisphosphatase.

Bioorg Med Chem 2020 09 10;28(18):115624. Epub 2020 Jul 10.

International Cooperation Base of Pesticide and Green Synthesis (Hubei), Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, Department of Chemistry, Central China Normal University, Wuhan 430079, China. Electronic address:

Fructose-1,6-bisphosphatase (FBPase) is an attractive target for affecting the GNG pathway. In our previous study, the C128 site of FBPase has been identified as a new allosteric site, where several nitrovinyl compounds can bind to inhibit FBPase activity. Herein, a series of nitrostyrene derivatives were further synthesized, and their inhibitory activities against FBPase were investigated in vitro. Read More

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September 2020

Discovery of -Arylsulfonyl-Indole-2-Carboxamide Derivatives as Potent, Selective, and Orally Bioavailable Fructose-1,6-Bisphosphatase Inhibitors-Design, Synthesis, Glucose Lowering Effects, and X-ray Crystal Complex Analysis.

J Med Chem 2020 09 12;63(18):10307-10329. Epub 2020 Sep 12.

Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.

Liver fructose-1,6-bisphosphatase (FBPase) is a key enzyme in the gluconeogenesis pathway. Inhibiting FBPase activity represents a potential treatment for type 2 diabetes mellitus. A series of novel -arylsulfonyl-4-arylamino-indole-2-carboxamide derivatives have been disclosed as FBPase inhibitors. Read More

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September 2020

Development of disulfide-derived fructose-1,6-bisphosphatase (FBPase) covalent inhibitors for the treatment of type 2 diabetes.

Eur J Med Chem 2020 Oct 15;203:112500. Epub 2020 Jul 15.

State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Mei Long Road, Shanghai, 200237, China. Electronic address:

Fructose-1,6-bisphosphatase (FBPase), as a key rate-limiting enzyme in the gluconeogenesis (GNG) pathway, represents a practical therapeutic strategy for type 2 diabetes (T2D). Our previous work first identified cysteine residue 128 (C128) was an important allosteric site in the structure of FBPase, while pharmacologically targeting C128 attenuated the catalytic ability of FBPase. Herein, ten approved cysteine covalent drugs were selected for exploring FBPase inhibitory activities, and the alcohol deterrent disulfiram displayed superior inhibitory efficacy among those drugs. Read More

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October 2020

Fetal expression of genes related to metabolic function is impacted by supplementation of ground beef and sucrose during gestation in a swine model.

J Anim Sci 2020 Aug;98(8)

Department of Animal Sciences, North Dakota State University, Fargo, ND.

To determine the effects of maternal supplementation on the mRNA abundance of genes associated with metabolic function in fetal muscle and liver, pregnant sows (Landrace × Yorkshire; initial body weight (BW) 221.58 ± 33.26 kg; n = 21) fed a complete gestation diet (corn-soybean meal based diet, CSM) were randomly assigned to 1 of 4 isocaloric supplementation treatments: control (CON, 378 g/d CSM, n = 5), sucrose (SUGAR, 255 g/d crystalized sugar, n = 5), cooked ground beef (BEEF, 330 g/d n = 6), or BEEF + SUGAR (B+S, 165 g/d cooked ground beef and 129 g/d crystalized sugar, n = 5), from days 40 to 110 of gestation. Read More

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Dynamic light caused less photosynthetic suppression, rather than more, under nitrogen deficit conditions than under sufficient nitrogen supply conditions in soybean.

BMC Plant Biol 2020 Jul 17;20(1):339. Epub 2020 Jul 17.

State Key Lab of Crop Biology, Tai'an, Shandong Province, China.

Background: Plants are always exposed to dynamic light. The photosynthetic light use efficiency of leaves is lower in dynamic light than in uniform irradiance. Research on the influence of environmental factors on dynamic photosynthesis is very limited. Read More

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Effects of red and blue light on leaf anatomy, CO assimilation and the photosynthetic electron transport capacity of sweet pepper (Capsicum annuum L.) seedlings.

BMC Plant Biol 2020 Jul 6;20(1):318. Epub 2020 Jul 6.

College of Horticultural Science and Engineering, Shandong Agricultural University, Tai'an, China.

Background: The red (R) and blue (B) light wavelengths are known to influence many plant physiological processes during growth and development, particularly photosynthesis. To understand how R and B light influences plant photomorphogenesis and photosynthesis, we investigated changes in leaf anatomy, chlorophyll fluorescence and photosynthetic parameters, and ribulose-1, 5-bisphosphate carboxylase/oxygenase (Rubisco) and Calvin cycle-related enzymes expression and their activities in sweet pepper (Capsicum annuum L.) seedlings exposed to four light qualities: monochromatic white (W, control), R, B and mixed R and B (RB) light with the same photosynthetic photon flux density (PPFD) of 300 μmol/m·s. Read More

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Remember where you came from: ABA insensitivity is epigenetically inherited in mesophyll, but not seeds.

Plant Sci 2020 Jun 19;295:110455. Epub 2020 Feb 19.

The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, P.O. Box 12, Rehovot 7610001, Israel. Electronic address:

Plants transmit their experiences of environmental conditions to their progeny through epigenetic inheritance, improving their progeny's fitness under prevailing conditions. Though ABA is known to regulate epigenetic-modification genes, no strong phenotypic link between those genes and intergenerational "memory" has been shown. Previously, we demonstrated that mesophyll insensitivity to ABA (FBPase::abi1-1{fa} transgenic plants) results in a range of developmental phenotypes, including early growth vigor and early flowering (i. Read More

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Performance Evaluation of Docking Programs- Glide, GOLD, AutoDock & SurflexDock, Using Free Energy Perturbation Reference Data: A Case Study of Fructose-1, 6-bisphosphatase-AMP Analogs.

Mini Rev Med Chem 2020 ;20(12):1179-1187

Rational Labs (p) Ltd., Plot #177, IDA Mallapur, Hyderabad-500 076, India.

Background: The accurate ranking of analogs of lead molecules with respect to their estimated binding free energies to drug targets remains highly challenging in molecular docking due to small relative differences in their free energy values.

Methods: Free energy perturbation (FEP) method, which provides the most accurate relative binding free energy values were earlier used to calculate free energies of many ligands for several important drug targets including Fructose-1,6-BisphosPhatase (FBPase). The availability of abundant structural and experimental binding affinity data for FBPase inhibitors provided an ideal system to evaluate four widely used docking programs, AutoDock, Glide, GOLD and SurflexDock, distinct from earlier comparative evaluation studies. Read More

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February 2021

Identification of the New Covalent Allosteric Binding Site of Fructose-1,6-bisphosphatase with Disulfiram Derivatives toward Glucose Reduction.

J Med Chem 2020 06 19;63(11):6238-6247. Epub 2020 May 19.

Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.

Fructose 1,6-bisphosphatase (FBPase) has attracted substantial interest as a target associated with cancer and type 2 diabetes. Herein, we found that disulfiram and its derivatives can potently inhibit FBPase by covalently binding to a new C128 allosteric site distinct from the original C128 site in APO FBPase. Further identification of the allosteric inhibition mechanism reveals that the covalent binding of a fragment of will result in the movement of C128 and the dissociation of helix H4 (123-128), which in turn allows S123 to more easily form new hydrogen bonds with K71 and D74 in helix H3 (69-72), thereby inhibiting FBPase activity. Read More

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The ubiquity and coexistence of two FBPases in chloroplasts of photosynthetic eukaryotes and its evolutionary and functional implications.

Plant Divers 2020 Apr 26;42(2):120-125. Epub 2019 Sep 26.

State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.

In photosynthetic eukaryotes, there are two well-characterized fructose-1,6-bisphosphatases (FBPases): the redox-insensitive cytosolic FBPase (cyFBPase), which participates in gluconeogenesis, and the redox-sensitive chloroplastic FBPase (cpFBPase1), which is a critical enzyme in the Calvin cycle. Recent studies have identified a new chloroplastic FBPase, cpFBPase2; however, its phylogenetic distribution, evolutionary origin, and physiological function remain unclear. In this study, we identified and characterized these three FBPase isoforms in diverse, representative photosynthetic lineages and analyzed their phylogeny. Read More

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Structural Specificity of Flavonoids in the Inhibition of Human Fructose 1,6-Bisphosphatase.

J Nat Prod 2020 05 4;83(5):1541-1552. Epub 2020 May 4.

LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal.

Liver fructose 1,6-bisphosphatase (FBPase) is a recognized regulatory enzyme of the gluconeogenesis pathway, which has emerged as a valid target to control gluconeogenesis-mediated overproduction of glucose. As such, the management of diabetes with FBPase inhibitors represents a potential alternative for the currently used antidiabetic agents. In this study, the FBPase inhibition of a panel of 55 structurally related flavonoids was tested, through a microanalysis screening system. Read More

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Metabolic responses in Scophthalmus maximus kidney subjected to thermal stress.

Fish Shellfish Immunol 2020 Aug 8;103:37-46. Epub 2020 Apr 8.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shandong Key Laboratory of Marine Fisheries Biotechnology and Genetic Breeding, Qingdao Key Laboratory for Marine Fish Breeding and Biotechnology, Qingdao, 266071, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China.

Turbot (Scophthalmus maximus) is an economically important marine fish cultured in China. In this study, fish in the experimental group were exposed to four temperatures: 15, 20, 25 and 28 °C. Metabolomics analysis and quantitative real-time PCR were used to assess changes in metabolic profiling and gene expression associated with thermal stress. Read More

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Activity of fructose-1,6-bisphosphatase from .

Biochem Cell Biol 2020 08 3;98(4):518-524. Epub 2020 Mar 3.

Leicester Institute of Structural and Chemical Biology and Department of Molecular and Cell Biology, University of Leicester, Leicester, LE1 7RH, UK.

The glycolytic pathway of the enteric pathogen is incomplete; the absence of phosphofructokinase means that the suppression of futile cycling at this point in the glycolytic-gluconeogenic pathway might not be required, and therefore the mechanism for controlling pathway flux is likely to be quite different or absent. In this study, the characteristics of fructose-1,6-bisphosphatase (FBPase) of are described and the regulation of this enzyme is compared with the equivalent enzymes from organisms capable of glycolysis. The enzyme is insensitive to AMP inhibition, unlike other type I FBPases. Read More

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Dapagliflozin attenuates renal gluconeogenic enzyme expression in obese rats.

J Endocrinol 2020 05;245(2):193-205

Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.

The kidneys release glucose into the systemic circulation through glucose reabsorption and renal gluconeogenesis. Currently, the significance of renal glucose release in pathological conditions has become a subject of interest. We examined the effect of sodium-dependent glucose cotransporter 2 inhibitor (SGLT2i) on renal gluconeogenic enzyme expression in obese rats. Read More

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Increasing growth and yield by altering carbon metabolism in a transgenic leaf oil crop.

Plant Biotechnol J 2020 Feb 18. Epub 2020 Feb 18.

Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT, Australia.

Engineering high biomass plants that produce oil (triacylglycerol or TAG) in vegetative rather than seed-related tissues could help meet our growing demand for plant oil. Several studies have already demonstrated the potential of this approach by creating transgenic crop and model plants that accumulate TAG in their leaves and stems. However, TAG synthesis may compete with other important carbon and energy reserves, including carbohydrate production, and thereby limit plant growth. Read More

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February 2020

Fructose-1,6-bisphosphatase deficiency with confirmed molecular diagnosis. An important cause of hypoglycemia in children.

Saudi Med J 2020 Feb;41(2):199-202

Department of Pediatrics, Medical Genetics and Metabolic Division, Prince Sultan Military Medical City, Riyadh, Kingdom of Saudi Arabia. E-mail.

Objectives: To draw attention towards fructose-1,6-bisphosphatase (FBPase) deficiency as an important cause of hypoglycemia and lactic acidosis and to implement preventive strategies. Methods: This observational, cross-sectional study was conducted on 7 Saudi patients with genetically confirmed FBPase deficiency from 2008 to 2018 at Prince Sultan Military Medical City, Riyadh, Saudi Arabia. Results: Participants ranged in age from 1-10 years, and all presented with recurrent hypoglycemia. Read More

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February 2020