Deferiprone (L1) induced conformation change of hemoglobin: A fluorescence and CD spectroscopic study.

Abstract:

:The interaction of deferiprone (1,2-dimethyl-3-hydroxy-pyrid-4-one) L1, the first clinically available oral iron chelator, with the tetrameric allosteric protein hemoglobin from human red blood cells has been investigated spectrofluorometrically and by circular dichroism spectroscopy. The interaction is hydrogenbond like electrostatic in nature, the binding constant being 4.54 x 10(3) M(-1) in 0.15 M NaCl. Circular dichroism studies indicate a conformational change of hemoglobin in presence of deferiprone, helicity of hemoglobin being reduced in presence of increasing concentration of the drug L1.

journal_name

Mol Cell Biochem

authors

Chakraborty D,Bhattacharyya M

doi

10.1023/a:1007049701572

keywords:

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

17-20

issue

1-2

eissn

0300-8177

issn

1573-4919

journal_volume

204

pub_type

杂志文章
  • Control of mitochondrial respiration in muscle.

    abstract::Control of mitochondrial respiration depends on ADP availability to the F1-ATPase. An electrochemical gradient of ADP and ATP across the mitochondrial inner membrane is maintained by the adenine nucleotide translocase which provides ADP to the matrix for ATP synthesis and ATP for energy-dependent processes in the cyto...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章,评审

    doi:10.1007/BF00219314

    authors: McMillin JB,Pauly DF

    更新日期:1988-06-01 00:00:00

  • The tyrosine kinase inhibitor genistein increases basal cAMP and potentiates forskolin-induced cAMP accumulation in A549 human airway epithelial cells.

    abstract::Genistein is often used as an inhibitor of tyrosine kinases. A less studied side effect of genistein is an inhibition of cyclic AMP-phosphodiesterase (cAMP-PDE) activity resulting in increased cAMP accumulation. The effect of genistein on intracellular cAMP-levels, basal and forskolin-induced, was studied in A549 huma...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1020655724911

    authors: Burvall KM,Palmberg L,Larsson K

    更新日期:2002-11-01 00:00:00

  • Upregulation of macrophage-specific functions by oxidized LDL: lysosomal degradation-dependent and -independent pathways.

    abstract::Formation of foam cells from macrophages, which are formed by the differentiation of blood-borne monocytes, is a critical early event in atherogenesis. To examine how pre-exposure of monocytes to modified proteins, such as oxLDL, influences their differentiation to macrophages, an in vitro model system using isolated ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-012-1459-8

    authors: Radhika A,Sudhakaran PR

    更新日期:2013-01-01 00:00:00

  • Effect of lipoprotein-X on lipid metabolism in rat kidney.

    abstract::Lipoprotein-X (Lp-X) is found in the plasma of patients with familial lecithin: cholesterol acyltransferase (LCAT) deficiency syndromes. The majority of the patients with this disorder develop progressive glomerulosclerosis. In this study, the effect of Lp-X on lipid metabolism in perfused rat kidney was investigated....

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1006836704042

    authors: O K,Ly M,Fang DZ,Frohlich J,Choy PC

    更新日期:1997-08-01 00:00:00

  • Biophysical characterization of rat cardiac Ca2+/Mg2+ ecto-ATPase (myoglein).

    abstract::Sarcolemmal Ca2+/Mg2+ ecto-ATPase (Myoglein; MW 180 kD) is a membrane bound enzyme which requires a millimolar concentration of either Ca2+ or Mg2+ for maximal hydrolysis of ATP. The isoelectric point (pI) of the cardiac ecto-ATPase was 5.7. The purified Ca2+/Mg2+ ecto-ATPase from the rat heart sarcolemmal appeared as...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1006840523916

    authors: Kannan S,Elimban V,Dakshinamurti K,Dhalla NS

    更新日期:1998-06-01 00:00:00

  • Interaction of snake venom cardiotoxin (a membrane-disruptive polypeptide) with human erythrocytes.

    abstract::The action of 7.2 microM cardiotoxin on 0.25% human erythrocytes in a plasma extender solution was studied by the interaction of toxin with intact red blood cells and subsequent hemolysis of the cells. The binding of toxin to cells was completed within 10 min, whereas the membrane rigidity was weakened in a non-lytic ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00229378

    authors: Chen YH,Liou RF,Hu CT,Juan CC,Yang JT

    更新日期:1987-01-01 00:00:00

  • Mitoapocynin, a mitochondria targeted derivative of apocynin induces mitochondrial ROS generation and apoptosis in multiple cell types including cardiac myoblasts: a potential constraint to its therapeutic use.

    abstract::Mitoapocynin is a triphenylphosphonium conjugated derivative of apocynin that specifically locates to the mitochondria. It has been developed as a mitochondrially targeted therapeutic antioxidant. We attempted to attenuate the mitochondrial ROS induced in H9c2 cardiac myoblast cells treated with norepinephrine. Mitoap...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-020-04039-4

    authors: Mahmood A,Bisoyi P,Banerjee R,Yousuf M,Goswami SK

    更新日期:2021-01-30 00:00:00

  • Effects of Mg2+ and adenine nucleotides on thymidylate synthetase from different mouse tumors.

    abstract::Magnesium ions variably influenced activity of highly purified thymidylate synthetase preparations from different mouse tumors, activating the enzyme from Ehrlich ascites carcinoma (EAC) cells and inhibiting the enzyme from L1210 and L5178Y cells and from 5-fluorodeoxyuridine (FdUrd)-resistant EAC cells. In the presen...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00226300

    authors: Rode W,Jastreboff MM

    更新日期:1984-01-01 00:00:00

  • Decreased BMP2 signal in GIT1 knockout mice slows bone healing.

    abstract::Endochondral ossification, an important stage of fracture healing, is regulated by a variety of signaling pathways. Transforming growth factor β (TGFβ) superfamily plays important roles and comprises TGFβs, bone morphogenetic proteins (BMPs), and growth differentiation factors. TGFβs primarily regulate cartilage forma...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-014-2173-5

    authors: Sheu TJ,Zhou W,Fan J,Zhou H,Zuscik MJ,Xie C,Yin G,Berk BC

    更新日期:2014-12-01 00:00:00

  • Downregulated hypoxia-inducible factor 1α improves myoblast differentiation under hypoxic condition in mouse genioglossus.

    abstract::The treatment of obstructive sleep apnea-hypopnea syndrome targets the narrow anatomic structure of the upper airway (UA) and lacks an effective therapy for UA dilator muscle dysfunction. Long-term hypoxia can cause damage to UA dilator muscles and trigger a vicious cycle. We previously confirmed that hypoxia-inducibl...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-020-03995-1

    authors: Lu Y,Mao J,Han X,Zhang W,Li Y,Liu Y,Li Q

    更新日期:2021-01-03 00:00:00

  • Effect of dexamethasone on T-cell receptor/CD3 expression.

    abstract::Glucocorticoid hormones (GCH) are anti-inflammatory and immunosuppressive agents that inhibit T-cell growth and activation. Since the T-cell receptor (TCR)/CD3 complex mediates T-lymphocyte activation, we studied the effect of in vitro dexamethasone (DEX), a synthetic GCH, on TCR/CD3 expression. DEX-treatment of a hyb...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1006829421509

    authors: Migliorati G,Bartoli A,Nocentini G,Ronchetti S,Moraca R,Riccardi C

    更新日期:1997-02-01 00:00:00

  • Quaternary structural parameters of the congenital cataract causing mutants of αA-crystallin.

    abstract::Pediatric cataract of the congenital type is the most common form of childhood blindness and it is clinically and genetically heterogeneous. Mutations in 22 different genes have been identified to be associated with congenital cataracts, and among them, eight mutants belong to αA-crystallin. To explain how mutations i...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-011-1131-8

    authors: Kore R,Hedges RA,Oonthonpan L,Santhoshkumar P,Sharma KK,Abraham EC

    更新日期:2012-03-01 00:00:00

  • Release of ischemia in paced rat Langendorff hearts by supply of L-carnitine: role of endogenous long-chain acylcarnitine.

    abstract::Rat Langendorff hearts perfused with media that do not contain erythrocytes or fluorocarbon as oxygen carriers are borderline aerobic during 5 Hz pacing. This follows from the release of catabolic products measured: lactate, urate and Iysophosphatidyl-choline (IysoPC). Addition of L-carnitine to the perfusion medium r...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00239323

    authors: Hulsmann WC,Peschechera A,Serafini F,Ferrari LE

    更新日期:1996-03-09 00:00:00

  • Microassay for malignant hyperthermia susceptibility: hypersensitive ligand-gating of the Ca channel in muscle sarcoplasmic reticulum causes increased amounts and rates of Ca-release.

    abstract::A crude preparation of heavy sarcoplasmic reticulum (HSR) was isolated using 1 gram of muscle obtained from swine susceptible to malignant hyperthermia (MH) and from control swine. The caffeine and ATP concentration-dependency of Ca-release was determined using suction filtration with radioisotopic 45Ca as a tracer. R...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00223492

    authors: O'Brien PJ

    更新日期:1990-03-05 00:00:00

  • Chemoprotective and chemosensitizing properties of selenium nanoparticle (Nano-Se) during adjuvant therapy with cyclophosphamide in tumor-bearing mice.

    abstract::Cyclophosphamide (CP) is one of the widely used anticancer agents; however, it has serious deleterious effects on normal host cells due to its nonspecific action. The essential trace element Selenium (Se) is suggested to have chemopreventive and chemotherapeutic efficacy and currently used in pharmaceutical formulatio...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-016-2839-2

    authors: Bhattacharjee A,Basu A,Biswas J,Sen T,Bhattacharya S

    更新日期:2017-01-01 00:00:00

  • Isopeptide bond formation in epidermis.

    abstract::Proteins which are major substrates of epidermal transglutaminases can be identified in cultured keratinocytes of human, cow, and new-born rat. Cow and human keratinocytes both contain substrate proteins which are 30 000 to 50 000 daltons in size but dissociable in SDS to 12 000 daltons or less. In both species these ...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00240612

    authors: Kubilus J,Baden HP

    更新日期:1984-01-01 00:00:00

  • Exogenous growth factors enhance the expression of cola1, cola3, and Elastin in fibroblasts via activating MAPK signaling pathway.

    abstract::Exogenous growth factors could accelerate the process of wound healing. However, the underlying mechanisms have not been clearly clarified. The aim of the present study was to investigate the effect of epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) on the expression of type I collagen (cola1),...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-017-3204-9

    authors: Shen T,Gao K,Miao Y,Hu Z

    更新日期:2018-05-01 00:00:00

  • Alterations in the activities of rat tissue hexose monophosphate dehydrogenases in response to premature weaning and dietary restriction at mid-lactation.

    abstract::The activities of the hexose monophosphate dehydrogenases increased in adipose tissue, remained unchanged in liver and decreased in mammary gland following the weaning of rats at mid-lactation (day 14). When dietary intake was restricted at mid-lactation, the activities of the hexose monophosphate dehydrogenases incre...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00223478

    authors: Martins RN,Stokes GB

    更新日期:1987-08-01 00:00:00

  • Synergistic effect of TRM2/RNC1 and EXO1 in DNA double-strand break repair in Saccharomyces cerevisiae.

    abstract::In our recently published study, we provided in vitro as well as in vivo data demonstrating the involvement of TRM2/RNC1 in homologous recombination based repair (HRR) of DNA double strand breaks (DSBs), in support of such claims reported earlier. To further validate its role in DNA DSB processing, our present study r...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-007-9493-7

    authors: Choudhury SA,Asefa B,Kauler P,Chow TY

    更新日期:2007-10-01 00:00:00

  • Nuclear factor-κB signaling pathway is involved in phospholipase Cε-regulated proliferation in human renal cell carcinoma cells.

    abstract::Phospholipase Cε (PLCε), a downstream effector of small GTPase superfamily, has been identified to play a crucial role in tumorigenesis. Previously, our studies have showed that PLCε promotes proliferation of renal cell carcinoma (RCC) cells. However, the molecular mechanisms by which PLCε enhances the survival phenot...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-013-1948-4

    authors: Du HF,Ou LP,Song XD,Fan YR,Yang X,Tan B,Quan Z,Luo CL,Wu XH

    更新日期:2014-04-01 00:00:00

  • An alpha subunit-deficient form of eukaryotic protein synthesis initiation factor eIF-2 from rabbit reticulocyte lysate and its activity in ternary complex formation.

    abstract::Eukaryotic protein synthesis initiation factor eIF-2 is usually isolated as a heterotrimer (alphabeta gamma). By use of Sephacryl S-300 fractionation an alpha subunit-deficient form of eIF-2 was identified in impure preparations from rabbit reticulocyte lysate and it appeared in these preparations to be still active i...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1006829615464

    authors: Mouat MF,Manchester K

    更新日期:1998-06-01 00:00:00

  • The utrophin-beta 2 syntrophin complex regulates adipocyte lipid droplet size independent of adipogenesis.

    abstract::Utrophin is a widely expressed cytoskeleton protein and is associated with lipid droplets (LDs) in adipocytes. The scaffold protein beta 2 syntrophin (SNTB2) controls signaling events by recruiting distinct membrane and cytoskeletal proteins, and binds to utrophin. Here we show that SNTB2 forms a complex with utrophin...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-018-3409-6

    authors: Krautbauer S,Neumeier M,Haberl EM,Pohl R,Feder S,Eisinger K,Rein-Fischboeck L,Buechler C

    更新日期:2019-02-01 00:00:00

  • The properties of mnemiopsin, a bioluminescent and light sensitive protein purified by hollow fiber techniques.

    abstract::A calcium activated photoprotein, termed mnemiopsin, which emits bioluminescence upon the addition of calcium ion, has been isolated from the Ctenophore, Memiopsis leidyi, and purified by hollow fiber techniques. The system is similar to aequorin, from the jellyfish Aequorea, except that mnemiopsin can be light-inacti...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00232600

    authors: Girsch SJ,Hastings JW

    更新日期:1978-04-11 00:00:00

  • Effects of estrogen on age-related changes in muscarinic responsiveness of the urinary bladder and lumbosacral dorsal root ganglion cells in female rats.

    abstract::The aim of this study was to investigate estrogen's effect on age-related changes in bladder function. Female Wistar rats were divided into three groups that included young rats (3-month-old) (YR), old rats (13-month-old) (OR), and old rats given subcutaneous treatments of estradiol for 6 weeks (OR + E). The groups we...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-008-9856-8

    authors: Watanabe T,Matsumoto M,Toji S,Miyagawa I

    更新日期:2008-11-01 00:00:00

  • Up-regulation of the endoplasmic reticulum molecular chaperone GRP78 during hibernation in thirteen-lined ground squirrels.

    abstract::Hibernating mammals endure conditions of low body temperature and oxidative stress that would be highly injurious to humans and most other mammals. Stress conditions frequently trigger the production of molecular chaperones; in the endoplasmic reticulum the glucose-regulated protein-78 (GRP78) helps to minimize protei...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-006-9221-8

    authors: Mamady H,Storey KB

    更新日期:2006-11-01 00:00:00

  • Atherosclerosis risk factors: the possible role of homocysteine.

    abstract::Atherosclerosis is the leading cause of death in North America. It is characterized by thickening of the coronary artery wall by the formation of plaques, resulting in reduced blood flow. Plaque rupture and the consequent thrombosis may lead to sudden blockage of arteries and causing stroke and heart attack. In the la...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章,评审

    doi:10.1023/a:1017286006708

    authors: Choy PC,Mymin D,Zhu Q,Dakshinamurti K,O K

    更新日期:2000-04-01 00:00:00

  • Genomic organization and neonatal expression of the bovine myostatin gene.

    abstract::Myostatin belongs to the Transforming Growth Factor-beta (TGF-beta) superfamily and is expressed in developing and mature skeletal muscle. Biologically, the role of myostatin seems to be extremely well conserved during evolution since inactivating mutations in myostatin gene cause similar phenotype of heavy muscling i...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1010801511963

    authors: Jeanplong F,Sharma M,Somers WG,Bass JJ,Kambadur R

    更新日期:2001-04-01 00:00:00

  • Induction of GLUT1 mRNA in response to azide and inhibition of protein synthesis.

    abstract::Incubation of Clone 9 cells, a nontransformed rat liver cell line, in the presence of 5 mM azide results in an induction of GLUT1 mRNA which becomes detectable after approximately 3 h of continuous exposure to the agent. In examining the role of on-going protein synthesis in this response, we found that: (i) the induc...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1023/a:1006894527145

    authors: Behrooz A,Ismail-Beigi F

    更新日期:1998-10-01 00:00:00

  • Hyperglycemia reduces integrin subunits alpha v and alpha 5 on the surface of dermal fibroblasts contributing to deficient migration.

    abstract::Deficient wound healing is a common multifactorial complication in diabetic patients, but the cellular and molecular mechanisms involved are poorly defined. In the present study, we analyzed the effects of hyperglycemia on integrins expression in rat dermal fibroblasts and addressed its role in cell adhesion and migra...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/s11010-016-2780-4

    authors: Almeida ME,Monteiro KS,Kato EE,Sampaio SC,Braga TT,Câmara NO,Lamers ML,Santos MF

    更新日期:2016-10-01 00:00:00

  • Alterations in inotropy, nitric oxide and cyclic GMP synthesis, protein phosphorylation and ADP-ribosylation in the endotoxin-treated rat myocardium and cardiomyocytes.

    abstract::To evaluate the effects of the in vivo endotoxin treatment of the rat on (1) the contractile responses in the subsequently isolated papillary muscle to adrenergic and cholinergic agonists and (2) the biochemical parameters (cyclic GMP, nitric oxide synthesis, protein phosphorylation and ADP-ribosyslation) in the subse...

    journal_title:Molecular and cellular biochemistry

    pub_type: 杂志文章

    doi:10.1007/BF00408671

    authors: Sulakhe PV,Sandirasegarane L,Davis JP,Vo XT,Costain WJ,Mainra RR

    更新日期:1996-10-01 00:00:00