An intermediate of ubiquinone biosynthesis exists in the microsomal fraction of HepG2 cells.

Abstract:

:We analyzed lipids extracted from human hepatoma HepG2 cells using a high performance liquid chromatograph equipped with a reversed phase column and found a compound with a mass spectrum showing certain diagnostic ion fragments of 1-methoxy-5-polyprenyl-phenol, a known intermediate of ubiquinone biosynthesis. Universally radiolabeled [14C]-p-hydroxybenzoate, a precursor of ubiquinone, was incorporated into the compound on incubation with the cells, suggesting that the compound is a precursor of ubiquinone. The presence of the compound in the microsomal fraction of HepG2 cells was not due to contamination by the mitochondrial fraction because the activity of succinate-cytochrome c reductase in the microsomal fraction was below 1% of that in the mitochondrial fraction, whereas the contents of ubiquinone and the compound in the former were 4.6 and 7.8% of those in the latter, respectively. These results support the hypothesis that ubiquinone biosynthesis might occur in microsomes as well as mitochondria.

journal_name

J Biochem

journal_title

Journal of biochemistry

authors

Kang DC,Takeshige K,Minakami S

doi

10.1093/oxfordjournals.jbchem.a123308

subject

Has Abstract

pub_date

1990-12-01 00:00:00

pages

893-5

issue

6

eissn

0021-924X

issn

1756-2651

journal_volume

108

pub_type

杂志文章
  • Another cut for lysine tRNA: application of the hyperprocessing reaction reveals another stabilization strategy in metazoan lysine tRNAs.

    abstract::Recently, we revealed that the cloverleaf structure of some eukaryotic tRNAs is not always stable in vitro, and the denatured structures of these tRNAs are sometimes detected in bacterial RNase P reactions. We have designated the unusual internal cleavage reaction of these tRNAs as hyperprocessing. We have developed t...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a003173

    authors: Tanaka T,Kondo Y,Hori Y,Kikuchi Y

    更新日期:2002-06-01 00:00:00

  • pH- and salt-dependent self-assembly of human Rad51 protein analyzed as fluorescence resonance energy transfer between labeled proteins.

    abstract::Human HsRad51 protein assembles on a DNA molecule through cooperative binding and forms a long filament for homologous recombination. We have characterized the self-assembly of HsRad51 by measuring the fluorescence resonance energy transfer from the fluorescein-labeled protein to the rhodamine-labeled protein. Self-as...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvg076

    authors: Yoshioka K,Yumoto-Yoshioka Y,Fleury F,Takahashi M

    更新日期:2003-05-01 00:00:00

  • Genetic and molecular properties of human and rat renin-binding proteins with reference to the function of the leucine zipper motif.

    abstract::The presence of a leucine zipper motif was recognized in the deduced amino acid sequences of human and rat renin-binding proteins (RnBPs) on cloning and sequence analysis of the RnBP cDNAs. The in vitro synthesized RnBPs, with the respective cDNAs, formed heterodimers with porcine renin and homodimers. On comparison o...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a123609

    authors: Inoue H,Takahashi S,Fukui K,Miyake Y

    更新日期:1991-10-01 00:00:00

  • The importance of parathyroid hormone in inhibition of collagen synthesis and mitogenesis of osteoblastic cell.

    abstract::Loss of bone substance is a common manifestation of hyperparathyroidism. This suggests that parathyroid hormone (PTH) plays an important role as to bone mass. To investigate the mechanism underlying this change in bone mass, I studied the effects of PTH on collagen synthesis and mitogenesis of UMR-106 rat osteoblastic...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a122970

    authors: Pun KK

    更新日期:1989-12-01 00:00:00

  • Species-barrier phenomenon in prion transmissibility from a viewpoint of protein science.

    abstract::Transmissible spongiform encephalopathies (TSEs), or prion diseases, are fatal infectious neurodegenerative disorders. Their causative agents are prions, which are composed of disease-associated forms of prion protein (PrP(Sc)). Naturally occurring cases of TSEs are found in several mammalian species including humans,...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章,评审

    doi:10.1093/jb/mvs148

    authors: Hagiwara K,Hara H,Hanada K

    更新日期:2013-02-01 00:00:00

  • Purification and properties of rat D-3-hydroxyacyl-CoA dehydratase: D-3-hydroxyacyl-CoA dehydratase/D-3-hydroxyacyl-CoA dehydrogenase bifunctional protein.

    abstract::We have previously purified two D-3-hydroxyacyl-CoA dehydratase preparations from human liver. One preparation contained a 77-kDa polypeptide and smaller polypeptides, and the other was a homodimer of a 46-kDa polypeptide. Three different purified rat peroxisomal D-3-hydroxyacyl-CoA dehydratase preparations have been ...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a021459

    authors: Jiang LL,Miyazawa S,Hashimoto T

    更新日期:1996-09-01 00:00:00

  • Role of down-regulated neutral ceramidase during all-trans retinoic acid-induced neuronal differentiation in SH-SY5Y neuroblastoma cells.

    abstract::Neutral ceramidase (NCDase) is considered to be a critical enzyme for controlling the turnover of ceramide, an important bioactive lipid, which determines cell's fate. All-trans retinoic acid (ATRA) has been reported to induce neuronal differentiation and cell-cycle arrest [Lopez-Carballo, Moreno, Masia, Perez, and Ba...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvs033

    authors: Tanaka K,Tamiya-Koizumi K,Hagiwara K,Ito H,Takagi A,Kojima T,Suzuki M,Iwaki S,Fujii S,Nakamura M,Banno Y,Kannagi R,Tsurumi T,Kyogashima M,Murate T

    更新日期:2012-06-01 00:00:00

  • Differential rate assay of human pancreatic and salivary alpha-amylases in serum using two coupled enzymes.

    abstract::p-Nitrophenyl O-6-deoxy-6-[(2-pyridyl)amino]-alpha-D-glucopyranosyl-(1----4)-O-alpha- D-glucopyranosyl-(1----4)-O-alpha-D-glucopyranosyl-(1----4)-O-alpha-D- glucopyranosyl-(1----4)-alpha-D-glucopyranoside (FG5P) is hydrolyzed by human pancreatic a-amylase (HPA) or salivary alpha-amylase (HSA) to O-6-deoxy-6-[(2-pyridy...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a121841

    authors: Omichi K,Ikenaka T

    更新日期:1986-11-01 00:00:00

  • Interaction of the Pseudomonas cepacia DSM3959 lipase with its chaperone, LimA.

    abstract::The lipA gene of Pseudomonas cepacia DSM3959 requires a downstream gene, limA, in oder to express lipase activity. The product of the lim gene, LimA, is a molecular chaperone required during the folding of lipase in oder for the lipase to adopt an active conformation. The lipase and LimA proteins have been shown to fo...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a124948

    authors: Hobson AH,Buckley CM,Jørgensen ST,Diderichsen B,McConnell DJ

    更新日期:1995-09-01 00:00:00

  • The FLI-1 transcription factor is a short-lived phosphoprotein in T cells.

    abstract::The FLI-1 transcription factor is a member of the ETS gene family, most closely related to ERG. In this study, the FLI-1 protein products were characterized using a specific monoclonal antibody previously developed against bacterially expressed protein. In the human T-cell line Jurkat, both isoforms of FLI-1, p51 and ...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvi032

    authors: Zhang XK,Watson DK

    更新日期:2005-03-01 00:00:00

  • Role of p38 MAPK in lupeol-induced B16 2F2 mouse melanoma cell differentiation.

    abstract::We examined the signaling mechanisms involved in the differentiation-inducing activity of lupeol toward B16 2F2 melanoma cells. alpha-Melanocyte stimulating hormone (alpha-MSH), forskolin and dibutyryl cAMP, which are believed to be cAMP-elevating agents and analogues, enhanced lupeol-induced B16 2F2 cell differentiat...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvg162

    authors: Hata K,Hori K,Takahashi S

    更新日期:2003-09-01 00:00:00

  • Formation of superoxide anion during ferrous ion-induced decomposition of linoleic acid hydroperoxide under aerobic conditions.

    abstract::We studied the mechanism of formation of oxygen radicals during ferrous ion-induced decomposition of linoleic acid hydroperoxide using the spin trapping and chemiluminescence methods. The formation of the superoxide anion (O2*-) was verified in the present study. The hydroxyl radical is also generated through Fenton t...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvg217

    authors: Kambayashi Y,Tero-Kubota S,Yamamoto Y,Kato M,Nakano M,Yagi K,Ogino K

    更新日期:2003-12-01 00:00:00

  • Highly efficient photocontrol of mitotic kinesin Eg5 ATPase activity using a novel photochromic compound composed of two azobenzene derivatives.

    abstract::Mitotic kinesin Eg5 plays an important physiological role in cell division. Several small-molecule inhibitors of Eg5 are the focus of cancer therapies. Azobenzene is a photochromic compound exhibiting cis-trans isomerization upon ultraviolet (UV) and visible (VIS) light irradiation. Photochromic compounds of azobenzen...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvy051

    authors: Sadakane K,Alrazi IMD,Maruta S

    更新日期:2018-10-01 00:00:00

  • The stabilized structural array of two HMG1/2-boxes endowed by a linker sequence between them is requisite for the effective binding of HMG1 with DNA.

    abstract::High mobility group (HMG) protein 1 contains two DNA binding motifs, called HMG1/2-boxes, linked with a linker region. The functional relationships between the two boxes and the mechanism of involvement of the linker region for effective binding of HMG1 were examined. The binding analyses of truncated HMG1 peptides wi...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a022300

    authors: Saito K,Kikuchi T,Shirakawa H,Yoshida M

    更新日期:1999-02-01 00:00:00

  • Mechanism-based inactivation of coenzyme B12-dependent diol dehydratase by 3-unsaturated 1,2-diols and thioglycerol.

    abstract::The reactions of diol dehydratase with 3-unsaturated 1,2-diols and thioglycerol were investigated. Holodiol dehydratase underwent rapid and irreversible inactivation by either 3-butene-1,2-diol, 3-butyne-1,2-diol or thioglycerol without catalytic turnovers. In the inactivation, the Co-C bond of adenosylcobalamin under...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvn086

    authors: Toraya T,Tamura N,Watanabe T,Yamanishi M,Hieda N,Mori K

    更新日期:2008-10-01 00:00:00

  • Human aldolase C: characterization of the recombinant enzyme expressed in Escherichia coli.

    abstract::To study the structure/function relationship and enzymatic properties of human aldolase C, we have constructed an Escherichia coli expression plasmid, pHAC11, for the isozyme. E. coli cells carrying this plasmid produced enzymatically active human aldolase C. The kcat and Km values for fructose-1,6-bisphosphate (Fru-1...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a124475

    authors: Kusakabe T,Motoki K,Hori K

    更新日期:1994-06-01 00:00:00

  • Inversions in mitochondrial DNA of a petite mutant of yeast.

    abstract::Mitochondrial DNA of an erythromycin-resistant petite mutant of yeast, E734, showed physical maps of inversion, which occurred between two cross-over sites in the fragments Hae A and Hae B. The pair of cross-over sites was inferred to be accommodated within a repeat unit of E734 mtDNA during petite mutation by joining...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a134985

    authors: Wakabayashi K,Furutani Y

    更新日期:1984-11-01 00:00:00

  • Biophysics and bioinformatics reveal structural differences of the two peripheral stalk subunits in chloroplast ATP synthase.

    abstract::ATP synthases convert an electrochemical proton gradient into rotational movement to produce the ubiquitous energy currency adenosine triphosphate. Tension generated by the rotational torque is compensated by the stator. For this task, a peripheral stalk flexibly fixes the hydrophilic catalytic part F1 to the membrane...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvm045

    authors: Poetsch A,Berzborn RJ,Heberle J,Link TA,Dencher NA,Seelert H

    更新日期:2007-03-01 00:00:00

  • Identification of mK1, a true tissue (glandular) kallikrein of mouse submandibular gland: tissue distribution and a comparison of kinin-releasing activity with other submandibular kallikreins.

    abstract::The protein structure, kinin-releasing activity, and tissue distribution of four major proteinases of mouse submandibular gland (mK22, mK9, proteinase F, proteinase P) were studied. When compared with the deduced amino acid sequence of each member of the tissue (glandular) kallikrein gene family, the amino acid sequen...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a124288

    authors: Hosoi K,Tsunasawa S,Kurihara K,Aoyama H,Ueha T,Murai T,Sakiyama F

    更新日期:1994-01-01 00:00:00

  • A new low density lipoprotein receptor related protein, LRP5, is expressed in hepatocytes and adrenal cortex, and recognizes apolipoprotein E.

    abstract::The isolation and characterization of rabbit and human cDNAs revealed a new low density lipoprotein receptor (LDLR)-related protein (LRP) designated as LRP5. Human LRP5 cDNA encodes a 1, 616-amino acid type I membrane-like protein with three ligand binding repeats in its extracellular region. LDLR-deficient cells tran...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a022223

    authors: Kim DH,Inagaki Y,Suzuki T,Ioka RX,Yoshioka SZ,Magoori K,Kang MJ,Cho Y,Nakano AZ,Liu Q,Fujino T,Suzuki H,Sasano H,Yamamoto TT

    更新日期:1998-12-01 00:00:00

  • Existence of stoichiometric amounts of an intrinsic ATPase inhibitor and two stabilizing factors with mitochondrial ATP synthase in yeast.

    abstract::Two proteinaceous factors, 15K and 9K proteins, which acted together to stabilize the inactivated yeast F1F0-ATPase-inhibitor complex [Hashimoto, T., et al. (1984) J. Biochem. 95, 131-136] were hardly distinguishable from the sigma and epsilon subunits, respectively, of yeast F1-ATPase by sodium dodecyl sulfate (SDS) ...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a135466

    authors: Okada Y,Hashimoto T,Yoshida Y,Tagawa K

    更新日期:1986-01-01 00:00:00

  • Repression of serotonin secretion by an endogenous Ca2(+)-activated protease in electropermeabilized bovine platelets.

    abstract::Micromolar levels of free calcium ions added to the extracellular medium elicit secretion of serotonin from electropermeabilized bovine platelets in the presence of millimolar levels of Mg-ATP. Such Ca2(+)-dependent secretion of serotonin was almost completely impaired when the permeabilized platelets were preincubate...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a123199

    authors: Morimoto T,Oho C,Ueda M,Ogihara S,Takisawa H

    更新日期:1990-08-01 00:00:00

  • Detection and characterization of p-coumaric acid hydroxylase in mung bean, Vigna mungo, seedlings.

    abstract::A new p-coumaric acid (4-hydroxycinnamic acid) hydroxylase was detected in mung bean seedlings treated with tentoxin, a fungal toxin, in which polyphenol oxidase that hydroxylates a wide variety of monophenols in vitro was completely eliminated. The enzyme required molecular oxygen and showed a pH optimum of 5.0. The ...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a122651

    authors: Kojima M,Takeuchi W

    更新日期:1989-02-01 00:00:00

  • A 26K fragment of troponin T from rabbit skeletal muscle.

    abstract::A 26K fragment of troponin T, which was produced by endogenous proteases in rabbit skeletal muscle, was isolated by SE-Sephadex column chromatography. This fragment sensitized both superprecipitation and ATPase of actomyosin to calcium ions, to the same extent as troponin T. There was no difference in affinity for tro...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a134740

    authors: Ohtsuki I,Shiraishi F,Suenaga N,Miyata T,Tanokura M

    更新日期:1984-05-01 00:00:00

  • Cloning of the mitochondrial genome of Rana catesbeiana and the nucleotide sequences of the ND2 and five tRNA genes.

    abstract::The entire mitochondrial genome of Rana catesbeiana was cloned into a plasmid vector pBR322 at the unique BamHI site and the nucleotide sequences of the ND2 gene and of its flanking genes were determined. The ND2 gene was encoded by 1,033 base pairs and, as deduced from the nucleotide sequence, the ND2 product consist...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a122295

    authors: Fujii H,Shimada T,Goto Y,Okazaki T

    更新日期:1988-03-01 00:00:00

  • Chemical modification of carboxyl groups of fibrinogen and its effect on the binding of cationic detergent.

    abstract::Carboxyl groups of native human fibrinogen were modified with glycine methyl ester and 1-ethyl-3(3-dimethylaminopropyl)carbodiimide. It seemed likely that the modification occurred stepwise. Approximately 26% of the carboxyl groups of fibrinogen was modified finally. The modified fibrinogen had no interaction with cat...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a130999

    authors: Kurioka S,Inoue F,Matsuda M

    更新日期:1975-11-01 00:00:00

  • The cyanogenic glucoside, prunasin (D-mandelonitrile-beta-D-glucoside), is a novel inhibitor of DNA polymerase beta.

    abstract::A DNA polymerase beta (pol. beta) inhibitor has been isolated independently from two organisms; a red perilla, Perilla frutescens, and a mugwort, Artemisia vulgaris. These molecules were determined by spectroscopic analyses to be the cyanogenic glucoside, D-mandelonitrile-beta-D-glucoside, prunasin. The compound inhib...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a022468

    authors: Mizushina Y,Takahashi N,Ogawa A,Tsurugaya K,Koshino H,Takemura M,Yoshida S,Matsukage A,Sugawara F,Sakaguchi K

    更新日期:1999-08-01 00:00:00

  • Purification of the putative import-receptor for the precursor of the mitochondrial protein.

    abstract::The receptor protein for the mitochondrial protein precursor synthesized in the cytosol was extensively purified from the mitochondrial membrane fraction by affinity column chromatography using a synthetic peptide containing the extrapeptide of ornithine aminotransferase as a ligand. The purified fraction contained tw...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a123135

    authors: Ono H,Tuboi S

    更新日期:1990-06-01 00:00:00

  • Characterization of the initial steps of precursor import into rat liver mitoplasts.

    abstract::Mitochondria have two independent protein-import machineries, one in the outer membrane (the Tom system) and the other in the inner membrane (the Tim system). Here, we have characterized the initial steps of precursor import into rat liver mitoplasts. The import reaction was separated into two stages, consisting of pr...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.jbchem.a022186

    authors: Ishihara N,Komiya T,Sakaguchi M,Ito A,Mihara K

    更新日期:1998-10-01 00:00:00

  • Molecular characterization of plantain class i chitinase gene and its expression in response to infection by Gloeosporium musarum Cke and Massee and other abiotic stimuli.

    abstract::We have cloned a chitinase cDNA (MpChi-1) from plantain (Musa paradisiacal L) using rapid amplification of cDNA ends (RACE) according to a sequence fragment which we had cloned using the suppression subtractive hybridization (SSH) technique. The MpChi-1 encodes a protein of 326 amino acids and belongs to acidic chitin...

    journal_title:Journal of biochemistry

    pub_type: 杂志文章

    doi:10.1093/jb/mvm171

    authors: Fan J,Wang H,Feng D,Liu B,Liu H,Wang J

    更新日期:2007-11-01 00:00:00