A simple mechanism decreasing free metabolite pool size in static spatial channelling.

Abstract:

:We propose a simple mechanism which enables decrease of the free pool of channelled metabolite in static spatial channelling, when the concentration of the enzyme consuming the channelled metabolite is greater than the concentration of the enzyme producing this metabolite. Spatial channelling occurs between two enzymes when the common metabolite is released to a small space between these enzymes and does not from a ternary covalent complex with them, as is the case in covalent (dynamic or static) channelling. The mechanism proposed is qualitatively independent of rate constants, metabolite concentrations as well as other kinetic properties and is quantitatively significant for all physiologically relevant conditions. Calculations show that the free metabolite pool must decrease, when the concentration of the enzyme consuming the channelled metabolite is greater than the enzyme producing it. This mechanism is much more effective than increase in the concentration (or rate constant) of the enzyme consuming the metabolite in the absence of spatial channelling.

journal_name

Mol Cell Biochem

authors

Korzeniewski B,Quant PA

doi

10.1023/a:1006882029611

subject

Has Abstract

pub_date

1997-04-01 00:00:00

pages

135-42

issue

1-2

eissn

0300-8177

issn

1573-4919

journal_volume

169

pub_type

杂志文章
  • EGFL7-overexpressing epidermal stem cells promotes fibroblast proliferation and migration via mediating cell adhesion and strengthening cytoskeleton.

    abstract::Epidermal growth factor (EGF)-like family members mediate a wide range of biological activities including cell proliferation and migration. Increasing evidence indicated that EGF plays an important role in the process of wound healing by stimulating fibroblast motility. The aim of this study was to see whether EGF-lik...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-016-2812-0

    authors: Yang RH,Qi SH,Ruan SB,Lin ZP,Lin Y,Zhang FG,Chen XD,Xie JL

    更新日期:2016-12-01 00:00:00

  • Simulated colon fiber metabolome regulates genes involved in cell cycle, apoptosis, and energy metabolism in human colon cancer cells.

    abstract::High level of dietary fiber has been epidemiologically linked to protection against the risk for developing colon cancer. The mechanisms of this protection are not clear. Fermentation of dietary fiber in the colon results in production of for example butyrate that has drawn attention as a chemopreventive agent. Polyde...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-011-0894-2

    authors: Putaala H,Mäkivuokko H,Tiihonen K,Rautonen N

    更新日期:2011-11-01 00:00:00

  • Molecular changes to the rat renal cotransporters PEPT1 and PEPT2 due to ageing.

    abstract::Renal PEPT1 and PEPT2 cotransporters play an important role in the balance of circulating body oligopeptides and selected peptidomimetic drugs. We aim to comprehensively characterise age-related changes of the renal PEPT cotransporters at the gene, protein, and functional level. Brush border membrane vesicles (BBMV) a...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-018-3413-x

    authors: Alghamdi OA,King N,Andronicos NM,Jones GL,Chami B,Witting PK,Moens PDJ

    更新日期:2019-02-01 00:00:00

  • FAM98A is localized to stress granules and associates with multiple stress granule-localized proteins.

    abstract::Stress granules are evolutionally conserved ribonucleoprotein structures that are formed in response to various stress stimuli. Recent studies have demonstrated that proteins with low complexity (LC) regions play a critical role for the formation of stress granules. In this study, we report that FAM98A, whose biologic...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-018-3397-6

    authors: Ozeki K,Sugiyama M,Akter KA,Nishiwaki K,Asano-Inami E,Senga T

    更新日期:2019-01-01 00:00:00

  • Biomarker study of the biological parameter and neurotransmitter levels in autistics.

    abstract::Autism is a prevalent developmental disorder that combines repetitive behaviours, social deficits and language abnormalities. The present study aims to assess the autistic subjects using DSM IV-TR criteria followed with the analysis of neurotransmitters, biochemical parameters, oxidative stress and its ions in two gro...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-020-03851-2

    authors: Meyyazhagan A,Balasubramanian B,Easwaran M,Alagamuthu KK,Shanmugam S,Kuchi Bhotla H,Pappusamy M,Arumugam VA,Thangaraj A,Kaul T,Keshavarao S,Cacabelos R

    更新日期:2020-11-01 00:00:00

  • Phospholipase Cbeta4 isozyme is expressed in human, rat, and murine heart left ventricles and in HL-1 cardiomyocytes.

    abstract::Phospholipase C-beta (PLCbeta) isozymes (PLCbeta(1) and PLCbeta(3)) have been extensively characterized in cardiac tissue, but no data are available for the PLCbeta(4) isozyme. In this study, PLCbeta((1-4)) isozymes mRNA relative expression was studied by real-time PCR (RT-PCR) in human, rat, and murine left ventricle...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-009-0296-x

    authors: Otaegui D,Querejeta R,Arrieta A,Lazkano A,Bidaurrazaga A,Arriandiaga JR,Aldazabal P,Garro MA

    更新日期:2010-04-01 00:00:00

  • FGF21 inhibits apolipoprotein(a) expression in HepG2 cells via the FGFR1-ERK1/2-Elk-1 pathway.

    abstract::Lipoprotein(a) [Lp(a)] is a highly atherogenic lipoprotein, whose metabolism is poorly understood. Efficient and secure drugs that can lower elevated plasma Lp(a) concentrations are currently lacking. Fibroblast growth factor-21 (FGF-21), a member of the FGFS super family, regulates glucose and lipid metabolism in hep...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-014-2044-0

    authors: Lin X,Li G,He X,Ma X,Zhang K,Zhang H,Zeng G,Wang Z

    更新日期:2014-08-01 00:00:00

  • Regulatory effects of S-100 protein and parvalbumin on protein kinases and phosphoprotein phosphatases from brain and skeletal muscle.

    abstract::In the eluted fractions of histone-treated crude extracts separated by Sephadex G-200 filtration, multiple protein kinase (PK) activities, including three from brain and two from skeletal muscle, were augmented by both S-100 protein and parvalbumin on the phosphorylation of endogenous substrates. One additional PK act...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00219324

    authors: Kuo WN,Blake T,Cheema IR,Dominguez J,Nicholson J,Puente K,Shells P,Lowery J

    更新日期:1986-06-01 00:00:00

  • MALAT1 affects hypoxia-induced vascular endothelial cell injury and autophagy by regulating miR-19b-3p/HIF-1α axis.

    abstract::Cardiovascular disease has become the leading cause of death in the world. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) plays an important role in cardiovascular disease, such as stroke. However, the role of MALAT1 in hypoxia (HYP)-induced vascular endothelial cells (VECs) remains unclear. In the pr...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-020-03684-z

    authors: Liu H,Shi C,Deng Y

    更新日期:2020-03-01 00:00:00

  • Structural and functional aspects of tumor cell sialomucins.

    abstract::Sialomucins are abundant on the surfaces of certain ascites tumor cells and have been implicated in the escape of tumors from immune destruction and metastasis. They are large, highly glycosylated glycoproteins which are rich in serine and threonine and have a variety of 0-linked oligosaccharides. The sialomucin (ASGP...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00230639

    authors: Carraway KL,Spielman J

    更新日期:1986-11-01 00:00:00

  • Discoidin domain receptor 2 is associated with the increased expression of matrix metalloproteinase-13 in synovial fibroblasts of rheumatoid arthritis.

    abstract::Regulation of matrix metalloproteinase-13 (MMP-13) by collagen matrix in the synovial fibroblasts of rheumatoid arthritis (RA) is critical event in the progressive joint destruction. Our previous study indicated that a collagen receptor, discoidin receptor 2 (DDR2), was highly expressed in the synovial fibroblasts of ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-009-0127-0

    authors: Su J,Yu J,Ren T,Zhang W,Zhang Y,Liu X,Sun T,Lu H,Miyazawa K,Yao L

    更新日期:2009-10-01 00:00:00

  • Inhibition of Helicobacter pylori in vitro by various berry extracts, with enhanced susceptibility to clarithromycin.

    abstract::The objective of this study was to evaluate the effects of various berry extracts, with and without clarithromycin on Helicobacter pylori. Resistance to clarithromycin by H. pylori has been reported, leading to interest in alternatives/adjuncts to therapy with clarithromycin. H. pylori American type culture collection...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/b:mcbi.0000044310.92444.ec

    authors: Chatterjee A,Yasmin T,Bagchi D,Stohs SJ

    更新日期:2004-10-01 00:00:00

  • Antioxidant associated chemoprevention by selenomethionine in murine tumor model.

    abstract::Effectiveness of selenium in different forms like sodium selenite, selenocysteine and selenomethionine has been compared in four different doses, namely 4, 6, 8 and 10 ppm of each, in terms of their bioavailability and prolongation of survival of Dalton's lymphoma (DL) bearing mice. Selenomethionine, at a dose of 8 pp...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1007040705928

    authors: Mukhopadhyay-Sardar S,Rana MP,Chatterjee M

    更新日期:2000-03-01 00:00:00

  • Evaluation of biochemical parameters in Rubus tereticaulis treated rats and its implications in wound healing.

    abstract::We evaluated the effects of Rubus tereticaulis in healing process by determining the total carbonyl content, collagen synthesis, and total protein level on rat wounded tissues. Wounds were performed in the back of 54 Wistar rats, using a biopsy punch instrument with 0.6 mm in diameter. Rats were randomly divided into ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-020-03784-w

    authors: Aksoy H,Demirbağ Ç,Şen A,Şekerler T,Özakpınar Ö,Şener A,Ahmad S,Tetik S

    更新日期:2020-09-01 00:00:00

  • IL-12 could induce monocytic tumor cells directional differentiation.

    abstract::Interleukin-12 (IL-12), a member of interleukin family, plays a critical role in immune responses and anti-tumor activity. In this study, the effects of IL-12 on monocytic tumor cell lines differentiation to macrophagocyte and its likely mechanism was investigated. We examined the differentiation markers, morphologica...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-014-2323-9

    authors: Ma TT,Wu BT,Lin Y,Xiong HY,Wang Q,Li ZW,Cheng F,Tu ZG

    更新日期:2015-04-01 00:00:00

  • Effects of celecoxib and ibuprofen on metabolic disorders induced by Walker-256 tumor in rats.

    abstract::The contribution of anti-inflammatory property of celecoxib in the improvement of metabolic disorders in cancer is unknown. The purpose of this study was to compare the effects of celecoxib and ibuprofen, non-steroidal anti-inflammatory drugs (NSAIDs), on several metabolic changes observed in Walker-256 tumor-bearing ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-014-2250-9

    authors: de Souza CO,Kurauti MA,de Fatima Silva F,de Morais H,Borba-Murad GR,de Andrade FG,de Souza HM

    更新日期:2015-01-01 00:00:00

  • Evaluation of biological effects induced by diagnostic ultrasound in the rat foetal tissues.

    abstract::In recent years, there has been growing interest in estimating the degree of heating caused by the diagnostic ultrasound in clinical practice. Both theoretical and experimental methods have been suggested for estimating the heating potential, or thermal hazard, of diagnostic ultrasound. Aim of this study was to evalua...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-006-9262-z

    authors: Karagöz I,Biri A,Babacan F,Kavutçu M

    更新日期:2007-01-01 00:00:00

  • Silencing USP22 by asymmetric structure of interfering RNA inhibits proliferation and induces cell cycle arrest in bladder cancer cells.

    abstract::The ubiquitin specific peptidase 22 (USP22) is a positive regulator of the growth of tumors. However, little is known about the impact of USP22 knockdown on the growth of human bladder cells. In the present study, we designed a series of asymmetric interfering RNAs (aiRNAs) and compared the efficacy of aiRNA and conve...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-010-0585-4

    authors: Lv L,Xiao XY,Gu ZH,Zeng FQ,Huang LQ,Jiang GS

    更新日期:2011-01-01 00:00:00

  • Chemopreventive effects of resveratrol in a rat model of cerulein-induced acute pancreatitis.

    abstract::In the past decades, a greater understanding of acute pancreatitis has led to improvement in mortality rates. Nevertheless, this disease continues to be a health care system problem due to its economical costs. Future strategies such as antioxidant supplementation could be very promising, regarding to beginning and pr...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-013-1887-0

    authors: Carrasco C,Holguín-Arévalo MS,Martín-Partido G,Rodríguez AB,Pariente JA

    更新日期:2014-02-01 00:00:00

  • Hydrogen sulfide decreases the plasma lipid peroxidation induced by homocysteine and its thiolactone.

    abstract::Hydrogen sulfide (H2S) has been investigated widely in recent years. H2S plays a variety of roles in different biological systems, including cardiovascular system. It is the final product of amino acids metabolism, which contains sulfur-cysteine and homocysteine (Hcy). In human plasma, there are several various forms ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-015-2364-8

    authors: Olas B,Kontek B

    更新日期:2015-06-01 00:00:00

  • Preparation of homogeneous crystals of myo-inositol 1-phosphate synthase from rat testicles--further data on the chemical and catalytic properties of the enzyme (studies on the biosynthesis cyclitols, XXXIX).

    abstract::Pre-purified preparations of myoinositol-1-phosphate synthase (E.C. 5.5.1.4) from rat testes can be purified to homogeneity by first crystallizing the enzyme according to JAKOBY and then recrystallizing it at a pH value close to the isoelectric point while slowly increasing the temperature from 0 to 15 degrees C. This...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00223357

    authors: Pittner F,Hoffmann-Ostenhof O

    更新日期:1979-12-14 00:00:00

  • The siRNA-mediated downregulation of N-Ras sensitizes human melanoma cells to apoptosis induced by selective BRAF inhibitors.

    abstract::The clinical benefit of selective BRAF inhibitor therapies is limited by the emergence of drug resistance. Here, we investigated the molecular basis underlying the acquired resistance to a BRAF inhibitor by comparing the signaling pathways in the parental A375P cells and the resistant subline (A375P/Mdr). We demonstra...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-014-2034-2

    authors: Ahn JH,Lee M

    更新日期:2014-07-01 00:00:00

  • Remote renal preconditioning-induced cardioprotection: a key role of hypoxia inducible factor-prolyl 4-hydroxylases.

    abstract::Remote preconditioning is a unique phenomenon in which brief episodes of ischemia and reperfusion to remote organ protect the target organ against sustained ischemia-reperfusion (I/R)-induced injury. Protective effects of remote renal preconditioning (RRPC) are well established in heart, but their mechanisms still rem...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-008-9717-5

    authors: Kant R,Diwan V,Jaggi AS,Singh N,Singh D

    更新日期:2008-05-01 00:00:00

  • Molecular biology of protein kinase C signaling in cardiac myocytes.

    abstract::The PKC family of serine/threonine kinases have been implicated in a diverse array of cellular responses. Adult cardiac myocytes express multiple PKC isozymes, which participate in the response of muscle cells to extracellular stimuli, modulate contractile properties, and promote cell growth and survival. Recently, th...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章,评审

    doi:10.1023/a:1012261903611

    authors: Malhotra A,Kang BP,Opawumi D,Belizaire W,Meggs LG

    更新日期:2001-09-01 00:00:00

  • Oxidative damage to sarcoplasmic reticulum Ca(2+)-pump induced by Fe2+/H2O2/ascorbate is not mediated by lipid peroxidation or thiol oxidation and leads to protein fragmentation.

    abstract::The major protein in the sarcoplasmic reticulum (SR) membrane is the Ca2+ transporting ATPase which carries out active Ca2+ pumping at the expense of ATP hydrolysis. The aim of this work was to elucidate the mechanisms by which oxidative stress induced by Fenton's reaction (Fe(2+)+H2O2-->HO.+OH-+Fe3+) alters the funct...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00420912

    authors: Castilho RF,Carvalho-Alves PC,Vercesi AE,Ferreira ST

    更新日期:1996-06-21 00:00:00

  • Knockdown of p62/sequestosome 1 attenuates autophagy and inhibits colorectal cancer cell growth.

    abstract::p62/sequestosome-1 is a multifunctional adapter protein implicated in selective autophagy, cell signaling pathways, and tumorigenesis, and plays an important role at the crossroad between autophagy and cancer. But, the connection between autophagy and cancer is complex and in some cases contradictory. Human colorectal...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-013-1818-0

    authors: Ren F,Shu G,Liu G,Liu D,Zhou J,Yuan L,Zhou J

    更新日期:2014-01-01 00:00:00

  • Clinical and anti-aging effect of mud-bathing therapy for patients with fibromyalgia.

    abstract::Spa bathing is known as a medical treatment for certain diseases causing chronic pains. Spa water contains mineral components which lower the specific heat of the water, resulting in a higher efficiency to warm body-core temperature. This phenomenon yields pain-relieving effect for rheumatoid arthritis, low back pain,...

    journal_title:Molecular and cellular biochemistry

    pub_type: 临床试验,杂志文章

    doi:10.1007/s11010-017-3233-4

    authors: Maeda T,Kudo Y,Horiuchi T,Makino N

    更新日期:2018-07-01 00:00:00

  • Over-expression of LYRM1 inhibits glucose transport in rat skeletal muscles via attenuated phosphorylation of PI3K (p85) and Akt.

    abstract::To explore the effect of LYRM1 over-expression on basal and insulin-stimulated glucose uptake in rat skeletal muscle cells, and to understand the underlying mechanisms, Rat myoblasts (L6) transfected with either an empty expression vector (pcDNA3.1Myc/His B) or a LYRM1 expression vector were differentiated into myotub...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-010-0649-5

    authors: Kou C,Cao X,Qin D,Ji C,Zhu J,Zhang C,Zhu C,Gao C,Chen R,Guo X,Zhang M

    更新日期:2011-02-01 00:00:00

  • Two structurally distinct and spatially compartmentalized adenylate kinases are expressed from the AK1 gene in mouse brain.

    abstract::Adenylate kinases (AK, EC 2.7.4.3) have been considered important enzymes for energy homeostasis and metabolic signaling. To gain a better understanding of their cell-specific significance we studied the structural and functional aspects of products of one adenylate kinase gene, AK1, in mouse tissues. By combined comp...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/b:mcbi.0000009859.15267.db

    authors: Janssen E,Kuiper J,Hodgson D,Zingman LV,Alekseev AE,Terzic A,Wieringa B

    更新日期:2004-01-01 00:00:00

  • Insulin sensitivity of liver glycogen synthase b into a conversion.

    abstract::Liver glycogen synthase b phosphatase, chromatographically separable from phosphorylase a phosphatase, is decreased in 48-hour alloxan diabetic rats. The phosphatase activities are measured in an in vitro system using exogenous isolated phospho-enzyme as substrates with added phosphatases. Synthase and phosphorylase p...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00211141

    authors: Gold AH,Dickemper D,Haverstick DM

    更新日期:1979-05-06 00:00:00