Heat shock protein 90α increases superoxide generation from neuronal nitric oxide synthases.

Abstract:

:Neuronal nitric oxide synthase (nNOS) generates superoxide, particularly at sub-optimal l-arginine (l-Arg) substrate concentrations. Heat shock protein 90 (Hsp90) was reported to inhibit superoxide generation from nNOS protein. However, commercially available Hsp90 product from bovine brain tissues with unspecified Hsp90α and Hsp90β contents and an undefined Hsp90 protein oligomeric state was utilized. These two Hsp90s can have opposite effect on superoxide production by NOS. Importantly, emerging evidence indicates that nNOS splice variants are involved in different biological functions by functioning distinctly in redox signaling. In the present work, purified recombinant human Hsp90α, in its native dimeric state, was used in electron paramagnetic resonance (EPR) spin trapping experiments to study the effects of Hsp90α on superoxide generation from nNOS splice variants nNOSμ and nNOSα. Human Hsp90α was found to significantly increase superoxide generation from nNOSμ and nNOSα proteins under l-Arg-depleted conditions and Hsp90α influenced superoxide production by nNOSμ and nNOSα at varying degrees. Imidazole suppressed the spin adduct signal, indicating that superoxide was produced at the heme site of nNOS in the presence of Hsp90α, whereas l-Arg repletion diminished superoxide production by the nNOS-Hsp90α. Moreover, NADPH consumption rate values exhibited a similar trend/difference as a function of Hsp90α and l-Arg. Together, these EPR spin trapping and NADPH oxidation kinetics results demonstrated noticeable Hsp90α-induced increases in superoxide production by nNOS and a distinguishable effect of Hsp90α on nNOSμ and nNOSα proteins.

journal_name

J Inorg Biochem

authors

Zheng H,Weaver JM,Feng C

doi

10.1016/j.jinorgbio.2020.111298

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

111298

eissn

0162-0134

issn

1873-3344

pii

S0162-0134(20)30326-3

journal_volume

214

pub_type

杂志文章
  • Unfolding cytochromes c-b562 and Rd apo b562.

    abstract::We have analyzed the early stages of unfolding of cytochromes c-b562 (PDB ID: 2BC5) and Rd apo b562 (PDB ID: 1YYJ). Our geometrical approach proceeds from an analysis of the crystal structure reported for each protein. We quantify, residue-by-residue and region-by-region, the spatial and angular changes in the structu...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2020.111209

    authors: Kozak JJ,Gray HB,Garza-López RA

    更新日期:2020-10-01 00:00:00

  • Uptake of 67copper complexed to 3H-histidine by brain hypothalamic slices: evidence that dissociation of the complex is not the only factor determining 67copper uptake.

    abstract::It was previously shown that complexation of 67Cu with His facilitates 67Cu uptake by hypothalamic slices and that His, in a concentration that is 1000-fold greater than Cu(His)2, inhibits 67Cu uptake (D. E. Hartter and A. Barnea, J. Biol. Chem. 263, 799-805 (1988)). We addressed the question: Does dissociation of the...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(90)80041-u

    authors: Barnea A,Katz BM

    更新日期:1990-09-01 00:00:00

  • A 1H nmr study of the interaction of aurothiomalate ("Myocrisin") with human red blood cells in vitro.

    abstract::The results of 1H spin-echo Fourier transform (SEFT) nuclear magnetic resonance (nmr) experiments suggest that some aurothiomalate binds intracellular glutathione (GSH) when added to suspensions of red cells in vitro. When added to red cell lysates, a specific binding of gold to cysteine of GSH is observed together wi...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(83)85027-2

    authors: Otiko G,Razi MT,Sadler PJ,Isab AA,Rabenstein DL

    更新日期:1983-11-01 00:00:00

  • The presence of a SO molecule in [NiFe] hydrogenase from Desulfovibrio vulgaris Miyazaki as detected by mass spectrometry.

    abstract::The active site of [NiFe] hydrogenase is a binuclear metal complex composed of Fe and Ni atoms and is called the Ni-Fe site, where the Fe atom is known to be coordinated to three diatomic ligands. Two mass spectrometric techniques, pyrolysis-MS (pyrolysis-mass spectrometry) and TOF-SIMS (time-of-flight secondary ion m...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(00)00081-7

    authors: Higuchi Y,Toujou F,Tsukamoto K,Yagi T

    更新日期:2000-07-01 00:00:00

  • Palladium(II) complexes of 2-benzoylpyridine-derived thiosemicarbazones: spectral characterization, structural studies and cytotoxic activity.

    abstract::Palladium(II) complexes of 2-benzoylpyridine thiosemicarbazone (H2Bz4DH) and its N4-methyl (H2Bz4M) and N4-phenyl (H2Bz4Ph) derivatives were obtained and fully characterized. [Pd(2Bz4DH)Cl] (1) crystallizes in the monoclinic space group P21/c with a=11.671(1), b=10.405(1), c=13.124(1), beta=115.60(1) degrees and Z=4; ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2004.11.022

    authors: Rebolledo AP,Vieites M,Gambino D,Piro OE,Castellano EE,Zani CL,Souza-Fagundes EM,Teixeira LR,Batista AA,Beraldo H

    更新日期:2005-03-01 00:00:00

  • Reactions of triethylphosphine gold(I) complexes with heme proteins: novel spin-state changes in cytochrome b562, myoglobin, and hemoglobin.

    abstract::Reactions of bacterial Fe(III) cyt b562, HbO2, met Hb and met Mb with Et3PAuCl and Et3PAuNO3 (and some related complexes) have been investigated by electronic absorption and EPR and NMR spectroscopy. Except for met Hb, which denatured, the products were novel high-spin Fe(III) heme proteins. The reactions of cyt b562 ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(86)80104-0

    authors: Grootveld MC,Otiko G,Sadler PJ,Cammack R

    更新日期:1986-05-01 00:00:00

  • Metal complexes of anhydrotetracycline. 2. Absorption and circular dichroism study of Mg(II), Al(III), and Fe(III) complexes. Possible influence of the Mg(II) complex on the toxic side effects of tetracycline.

    abstract::Anhydrotetracycline (AHTC) is the major toxic decomposition product of the antibiotic tetracycline. The complexation of AHTC to Mg(II), Al(III), and Fe(III) was studied in aqueous medium using absorption and circular dichroism measurements. The study of the Mg(II)-AHTC interactions at pH 7 indicated the formation of t...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(95)00017-i

    authors: Machado FC,Demicheli C,Garnier-Suillerot A,Beraldo H

    更新日期:1995-11-15 00:00:00

  • Synthesis and biological evaluation of biotin-conjugated anticancer thiosemicarbazones and their iron(III) and copper(II) complexes.

    abstract::Triapine, the most prominent anticancer drug candidate from the substance class of thiosemicarbazones, was investigated in >30 clinical phase I and II studies. However, the results were rather disappointing against solid tumors, which can be explained (at least partially) due to inefficient delivery to the tumor site....

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2018.10.006

    authors: Kallus S,Uhlik L,van Schoonhoven S,Pelivan K,Berger W,Enyedy ÉA,Hofmann T,Heffeter P,Kowol CR,Keppler BK

    更新日期:2019-01-01 00:00:00

  • Coordination of cellular iron metabolism by post-transcriptional gene regulation.

    abstract::Maintenance of cellular iron homeostasis demands the coordination of iron uptake, intracellular storage, and utilization. Recent investigations suggest that a single genetic regulatory system orchestrates the expression of proteins with central importance for all three aspects of cellular iron metabolism at the level ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/0162-0134(92)84064-t

    authors: Kühn LC,Hentze MW

    更新日期:1992-08-15 00:00:00

  • Mono- and polynuclear complexes of Pt(II) with polypyridyl ligands. Synthesis, spectroscopic and structural characterization and cytotoxic activity.

    abstract::An array of poly- and mononuclear complexes of Pt(II) with polypyridyl ligands is reported. The framework complexes [(PtCl(2))(2)(bpp)(2)(micro-PtCl(2))](H(2)O)(2) [bpp=2,3-bis(2-pyridyl)pyrazine], [PtCl(2)(micro-tptz)PtClNCPh]Cl [tptz=2,4,6-tris(2-pyridyl)-1,3,5-triazine], and mononuclear PtCl(2)(NH(2)dpt) [NH(2)dpt=...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2007.06.024

    authors: Rubino S,Portanova P,Albanese A,Calvaruso G,Orecchio S,Fontana G,Stocco GC

    更新日期:2007-10-01 00:00:00

  • DNA cleavage induced by [Cu(L)x(NO3)2] (L=2,2'-dipyridylamine, 2,2'-bipyridine, dipicolylamine, x=1 or 2): Effect of the ligand structure.

    abstract::The efficiency of [Cu(2,2'-bipyridine)2(NO3)]NO3, [Cu(2,2'-dipyridylamine)2(NO3)2], and [Cu(dipicolylamine)2(NO3)2] complexes (complex 1, 2 and 3, respectively) in oxidative DNA cleavage was examined by electrophoresis and linear dichroism (LD). Among the three Cu complexes, complex 1 showed the highest efficiency in ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2013.10.023

    authors: Kwon JH,Park HJ,Chitrapriya N,Cho TS,Kim S,Kim J,Hwang IH,Kim C,Kim SK

    更新日期:2014-02-01 00:00:00

  • Bis(L-cysteinato)gold(I): chemical characterization and identification in renal cortical cytoplasm.

    abstract::L-Cysteinatogold(I) was prepared by the reaction of L-cysteine with KAuBr4 in acidic media and its solubility determined from pH 4 to 10. The solubility at pH 7.4 and 37 degrees C is 1 microM. In the presence of excess cysteine, the solubility increases because of formation of bis(L-cysteinato)gold(I). The equilibrium...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(00)80198-1

    authors: Shaw CF 3rd,Schmitz G,Thompson HO,Witkiewicz P

    更新日期:1979-07-01 00:00:00

  • Synthesis and antitumor activity of platinum(II) complexes with trans-3,4-diamino-2,2,6,6-tetramethylpiperidine-1-oxyl.

    abstract::Platinum complexes PtII(DAPO)X2 with diaminonitroxyl radical-trans-3,4-diamino-2,2,6,6-tetramethylpiperidine-1-oxyl (DAPO)-were synthesized by the direct reaction of DAPO with K2PtX4 (X = Cl, I) or by the replacement of chloro ligands in PtII(DAPO)Cl2 by bromo, nitrato, oxalato, malonato, and 1,1-cyclobutanedicarboxyl...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(96)00029-3

    authors: Sen' VD,Golubev VA,Volkova LM,Konovalova NP

    更新日期:1996-10-01 00:00:00

  • The inhibitory effect of aluminium on the (Na+/K+)ATPase activity of rat brain cortex synaptosomes.

    abstract::The effect of AlCl(3) on the (Na(+)/K(+))ATPase activity of freeze-thawed synaptosomes, isolated from rat brain cortex, has been studied. The AlCl(3) action on the enzyme hydrolytic activity was examined using in vitro and in vivo approaches. Following exposure to AlCl(3) using both in vitro (synaptosomes incubated in...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(03)00257-5

    authors: Silva VS,Gonçalves PP

    更新日期:2003-09-15 00:00:00

  • Nuclease activity of [Cu(sulfathiazolato)(2)(benzimidazole)(2)]2MeOH. Synthesis, properties and crystal structure.

    abstract::The [Cu(sulfathiazolato)(2)(benzimidazole)(2)]2MeOH complex has been synthesised and characterised. It crystallises in the monoclinic system, space group C1c1, with unit cell dimensions a=18.829(7) A, b=12.206(3) A, c=17.233(5) A, alpha=90.06(2) degrees, beta=97.28(3) degrees, gamma=90.21(3) degrees and Z=4. The geome...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(01)00369-5

    authors: González-Alvarez M,Alzuet G,Borrás J,Macías B,del Olmo M,Liu-González M,Sanz F

    更新日期:2002-04-10 00:00:00

  • Vanadium-catalyzed chlorination under molecular oxygen.

    abstract::A catalytic chlorination of ketones was performed by using a vanadium catalyst in the presence of Bu4NI and AlCl3 under atmospheric molecular oxygen. This catalytic chlorination could be applied to the chlorination of alkenes to give the corresponding vic-dichlorides. AlCl3 was found to serve as both a Lewis acid and ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2015.01.015

    authors: Moriuchi T,Fukui Y,Kato S,Kajikawa T,Hirao T

    更新日期:2015-06-01 00:00:00

  • Kinetics of chromium(V) formation and reduction in fronds of the duckweed Spirodela polyrhiza--a low frequency EPR study.

    abstract::The uptake of chromate by the duckweed Spirodela polyrhiza was investigated with atomic absorption spectroscopy and the reduction of Cr(VI) to Cr(V) was measured using low frequency EPR spectroscopy. The biphasic kinetics of the uptake was fitted to parameters of a proposed kinetic model. Another model was developed t...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(00)00018-0

    authors: Appenroth KJ,Bischoff M,Gabryś H,Stoeckel J,Swartz HM,Walczak T,Winnefeld K

    更新日期:2000-02-01 00:00:00

  • Triplet of cysteines - Coordinational riddle?

    abstract::Polythiol binding of metal ions plays crucial role in the proper functioning of cysteine-rich proteins that are responsible for metal homeostasis and defending processes against metal toxicity (including heavy metals detoxification). The coordination properties of cysteine residues involved in specific sequencional pa...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2019.110957

    authors: Krzywoszyńska K,Swiątek-Kozłowska J,Potocki S,Ostrowska M,Kozłowski H

    更新日期:2020-03-01 00:00:00

  • Comparison of the equilibrium, kinetic and water exchange properties of some metal ion-DOTA and DOTA-bis(amide) complexes.

    abstract::The 1,7-diacetate-4,10-diacetamide substituted 1,4,7,10-tetraazacyclododecane structural unit is common to several responsive Magnetic Resonance Imaging (MRI) contrast agents (CAs). While some of these complexes (agents capable of sensing fluctuations in Zn2+, Ca2+ etc. ions) have already been tested in vivo, the deta...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2020.111042

    authors: Tircsó G,Tircsóné Benyó E,Garda Z,Singh J,Trokowski R,Brücher E,Sherry AD,Tóth É,Kovács Z

    更新日期:2020-05-01 00:00:00

  • Synthesis, structure and biomimetic properties of Cu(II)-Cu(II) and Cu(II)-Zn(II) binuclear complexes: possible models for the chemistry of Cu-Zn superoxide dismutase.

    abstract::Four imidazolate-bridged binuclear copper(II)-copper(II) and copper(II)-zinc(II) complexes viz., [(Bipy)(2)Cu-Im-Cu(Bipy)(2)](ClO(4))(3).CH(3)OH, [(Phen)(2)Cu-Im-Cu(Phen)(2)](BF(4))(3).2CH(3)OH, [(Bipy)(2)Cu-Im-Zn(Bipy)(2)](BF(4))(3), and [(Phen)(2)Cu-Im-Zn(Phen)(2)](BF(4))(3), (Bipy=2,2'-Bipyridyl, Phen=1-10-Phenanth...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2004.11.023

    authors: Patel RN,Singh N,Shukla KK,Gundla VL,Chauhan UK

    更新日期:2005-02-01 00:00:00

  • Synthesis and characterization of water-insoluble and water-soluble dibutyltin(IV) porphinate complexes based on the tris(pyridinyl)porphyrin moiety, their anti-tumor activity in vitro and interaction with DNA.

    abstract::The water-insoluble and water-soluble organotin(IV)porphinate complexes based on the tris-(4-pyridinyl)porphyrin and tris(N-methyl-4-pyridiniumyl)porphyrin moieties were synthesized and characterized by elemental analysis, (1)H NMR, IR and electrospray ionization mass spectra. The in vitro activity of the compounds ag...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(02)00369-0

    authors: Han G,Yang P

    更新日期:2002-07-25 00:00:00

  • Novel C,N-chelate platinum(II) antitumor complexes bearing a lipophilic ethisterone pendant.

    abstract::The novel steroidal carrier ligand 17-α-[4'-ethynyl-dimethylbenzylamine]-17-β-testosterone (ET-dmba 1) and the steroid--C,N-chelate platinum(II) derivatives [Pt(ET-dmba)Cl(L)] (L = DMSO (2) and PTA (3; PTA =1,3,5-triaza-7-phosphaadamantane)) have been prepared. Values of IC(50) were calculated for the new platinum com...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2010.12.005

    authors: Ruiz J,Rodríguez V,Cutillas N,Espinosa A,Hannon MJ

    更新日期:2011-04-01 00:00:00

  • Engineering Macaca fascicularis cytochrome P450 2C20 to reduce animal testing for new drugs.

    abstract::In order to develop in vitro methods as an alternative to P450 animal testing in the drug discovery process, two main requisites are necessary: 1) gathering of data on animal homologues of the human P450 enzymes, currently very limited, and 2) bypassing the requirement for both the P450 reductase and the expensive cof...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2012.05.017

    authors: Rua F,Sadeghi SJ,Castrignanò S,Di Nardo G,Gilardi G

    更新日期:2012-12-01 00:00:00

  • Quercetin as a shuttle for labile iron.

    abstract::The antioxidant activity of flavonoids may involve their ability to complex body iron in non-redox-active forms. In this study, it was found that the catechol flavonoids rutin and quercetin are able to suppress redox-active labile plasma iron (LPI) in both buffered solution and in iron-overloaded sera. Both flavonoids...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2011.11.014

    authors: Baccan MM,Chiarelli-Neto O,Pereira RM,Espósito BP

    更新日期:2012-02-01 00:00:00

  • Effect of polyanions on the spectroscopic properties of the nitric oxide derivative of ferrous dromedary (Camelus dromedarius) hemoglobin.

    abstract::The effect of inositol hexakisphosphate, 2,3-diphosphoglycerate, dextran sulphate, and heparin on the spectroscopic (absorbance, circular dichroism, EPR) properties of the nitric oxide derivative of ferrous dromedary (Camelus dromedarius) hemoglobin was investigated. The results obtained show that: (i) all polyanions ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(88)85001-3

    authors: Ascenzi P,Santucci R,Desideri A,Amiconi G

    更新日期:1988-04-01 00:00:00

  • An EXAFS study of the zinc sites in sheep liver metallothionein.

    abstract::Measurement and interpretation of the EXAFS associated with the K-absorption edge of zinc atoms in sheep liver metallothionein indicate that the primary coordination shell of each of these metal atoms comprises four sulphur atoms, with the Zn-S distance being 2.29 +/- 0.02 A. ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0162-0134(00)80112-9

    authors: Garner CD,Hasain SS,Bremner I,Bordas J

    更新日期:1982-06-01 00:00:00

  • Towards bioreductively activated prodrugs: Fe(III) complexes of hydroxamic acids and the MMP inhibitor marimastat.

    abstract::Fe(III)-salen (N,N-bis(salicylidene)-ethane-1,2-diimine) complexes of simple hydroxamic acids and the MMP (matrix metalloproteinase) inhibitor marimastat have been evaluated as hypoxia activated drug carriers. The aceto- (aha), propion- (pha), benzohydroxamato (bha), and marimastat complexes were prepared and characte...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2006.11.003

    authors: Failes TW,Hambley TW

    更新日期:2007-03-01 00:00:00

  • Novel 3-hydroxy-4-pyridinonato oxidovanadium(IV) complexes to investigate structure/activity relationships.

    abstract::A previous evaluation of the insulin-like activity of three 3-hydroxy-4-pyridinonato oxidovanadium(IV) complexes raised questions about structure/activity relationships, namely the influence of the hydrophilic/lipophilic balance of the complex and the capacity of the ligand to stabilize the +4 oxidation state of vanad...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2008.12.019

    authors: Rangel M,Amorim MJ,Nunes A,Leite A,Pereira E,de Castro B,Sousa C,Yoshikawa Y,Sakurai H

    更新日期:2009-04-01 00:00:00

  • Superoxide dismutase inhibition of alkaline hemin-mediated O2 activation.

    abstract::Inhibition of hemin-mediated O2 activation by bovine superoxide dismutase and the copper tetrammine complex has been examined. It is shown that the inhibitory effect of these species is not due to metabolism of O2-., but to a nonspecific inhibition of the process by the Cu2+ ion. We propose that the inhibition occurs ...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/0162-0134(89)80026-1

    authors: Adams C,Adams PA

    更新日期:1989-09-01 00:00:00

  • Synthesis, spectral study and cytotoxicity of platinum(II) complexes with 2,9-disubstituted-6-benzylaminopurines.

    abstract::A series of platinum(II) complexes with 2,9-disubstituted-6-benzylaminopurines has been prepared. The complexes have the following composition: cis-[Pt(Boh)(2)Cl(2)] (1), cis-[Pt(Oc)(2)Cl(2)] (2), cis-[Pt(Ros)(2)Cl(2)] (3), cis-[Pt(i-PrOc)(2)Cl(2)] (4), cis-[Pt(BohH(+))(2)Cl(2)]Cl(2) (5), cis-[Pt(OcH(+))(2)Cl(2)]Cl(2)...

    journal_title:Journal of inorganic biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.jinorgbio.2005.07.009

    authors: Malon M,Trávnícek Z,Marek R,Strnad M

    更新日期:2005-11-01 00:00:00