Characterization of conserved microRNAs from five different cucurbit species using computational and experimental analysis.

abstract：:Ton-dependent colicins and microcins are actively taken up into sensitive cells at the expense of energy which is provided by the proton motive force of the cytoplasmic membrane. The Ton system consisting of the proteins TonB, ExbB and ExbD is required for colicin and microcin import. Colicins as well as the outer mem...

journal_title：Biochimie

authors： Braun V,Patzer SI,Hantke K

更新日期：2002-05-01 00:00:00

abstract：:Mouse brain myelin consists of a continuum of particles of different densities, as shown by sucrose density gradient centrifugation. In normal animals most of the material (65 per cent) is concentrated between 0.6 and 0.7 M sucrose (the maximum being found at 0.66 M sucrose, corresponding to 23 per cent). The density ...

journal_title：Biochimie

authors： Bourre JM,Pollet S,Daudu O,Le Saux F,Baumann N

更新日期：1977-01-01 00:00:00

abstract：:Histone acetyltransferase (Hpa2) is an unusual acetyltransferase, with a wide range of substrates; including histones, polyamines and aminoglycosides antibiotic. Hpa2 belongs to GNAT superfamily and GNATs are well known for the formation of homo-oligomers. However, the reason behind their oligomerization remained unex...

journal_title：Biochimie

authors： Tomar JS,Hosur RV

更新日期：2020-01-01 00:00:00

abstract：:The inhibition rates and spectral characteristics of 2 probes specific for the active-site serine residue of proteases were examined for evidence of conformational change of the proteases upon their binding to alpha 2-macroglobulin (alpha 2M). Elastase, chymotrypsin, trypsin, and plasmin were reacted with (7-nitrobenz...

journal_title：Biochimie

authors： Martini JL,Pochon F

更新日期：1989-03-01 00:00:00

abstract：:Extracellular Hsp70 (eHsp70) can activate immune cells via Toll-like receptors (TLR) 2 and 4, and induce cytokine synthesis. The aim of this study was to explore inflammation-associated effects of eHsp70 alone and in combination with cigarette smoke extract (CSE) in primary bronchial epithelial cells. We assessed IL-6...

journal_title：Biochimie

authors： Hulina-Tomašković A,Heijink IH,Jonker MR,Somborac-Bačura A,Grdić Rajković M,Rumora L

更新日期：2019-01-01 00:00:00

abstract：:Labeling of 21-kDa material was observed when bovine brain soluble fraction was incubated with [adenylate-32P]NAD+ in the presence of GTP. The 21-kDa substrate, slightly smaller than C3 substrate in size, was labeled even without C3 exoenzyme. GTP could be replaced by nucleoside triphosphates other than ATP while ATP ...

journal_title：Biochimie

authors： Badruzzaman M,Miyaoka T,Terashima M,Yamada K,Ohno T,Yamamori C,Tsuchiya M,Shimoyama M

更新日期：1997-07-01 00:00:00

abstract：:The thrombin-binding DNA aptamer (TBA) 5'-d(GGTTGGTGTGGTTGG)-3' forms a G-quadruplex that is necessary for binding to the coagulation factor thrombin. The stability of the G-quadruplex of TBA when bound to thrombin and potassium ion (K(+)) were investigated for the wild-type oligonucleotide and for mutants in which th...

journal_title：Biochimie

authors： Nagatoishi S,Isono N,Tsumoto K,Sugimoto N

更新日期：2011-08-01 00:00:00

abstract：:Kinetic properties of PGM1 and PGM2 phosphoglucomutase "primary" isoenzymes from human erythrocytes were studied. The two enzyme forms share a "ping-pong" kinetic mechanism and show similar Km for substrate (glucose 1-P) and cofactor (glucose 1,6-P2). Micromolar concentrations of fructose 1,6-P2 and glycerate 2,3-P2 i...

journal_title：Biochimie

authors： Ninfali P,Accorsi A,Palma F,Fazi A,Piatti E,Chiarantini L,Fornaini G

更新日期：1984-09-01 00:00:00

abstract：:Despite its biological importance, iron is a pro-oxidant element and its accumulation results in tissue injury. Iron overload diseases such as thalassemia and hereditary hemochromatosis are commonly associated with liver tissue injury. Glutamyl cysteine (GC) is a dipeptide with antioxidant properties owing to its cyst...

journal_title：Biochimie

authors： Salama SA,Al-Harbi MS,Abdel-Bakky MS,Omar HA

更新日期：2015-08-01 00:00:00

abstract：:Structural and motional features in the denatured state of a protein dictate the early folding events starting from that state and these features vary depending upon the nature of the denaturant used. Here, we have attempted to decipher the early events in the folding of Dynein Light Chain protein (DLC8), starting fro...

journal_title：Biochimie

authors： Chakraborty S,Mohan PM,Hosur RV

更新日期：2012-01-01 00:00:00

abstract：:The innate immunity factor lactoferrin harbours two antimicrobial moieties, lactoferricin and lactoferrampin, situated in close proximity in the N1 domain of the molecule. Most likely they cooperate in many of the beneficial activities of lactoferrin. To investigate whether chimerization of both peptides forms a funct...

journal_title：Biochimie

authors： Bolscher JG,Adão R,Nazmi K,van den Keybus PA,van 't Hof W,Nieuw Amerongen AV,Bastos M,Veerman EC

更新日期：2009-01-01 00:00:00

abstract：:Mammalian aminoacylase-1 (Acy1) participates in the breakdown of N-acetylated amino acids during intracellular protein catabolism. Acy1 is most abundantly expressed in the kidney tubular epithelium. Lately, Acy1 deficiency was identified in children with increased urinary excretion of several N-acetylamino acids. Here...

journal_title：Biochimie

authors： Lindner HA,Täfler-Naumann M,Röhm KH

更新日期：2008-05-01 00:00:00

abstract：:The purpose of the present study was to investigate the effect of a concentrated preparation (EPA 30) containing eicosapentaenoic acid (EPA, 20:5 n-3) and docosahexaenoic acid (DHA, 22:6 n-3) on the limiting desaturation steps of the polyunsaturated fatty acid biosynthesis in spontaneously hypertensive rats (SHR). Adu...

journal_title：Biochimie

authors： Narce M,Frenoux JM,Dardel V,Foucher C,Germain S,Delachambre MC,Poisson JP

更新日期：1997-02-01 00:00:00

abstract：:Elongation factor 1 alpha (EF-1 alpha) was purified to homogeneity from full-grown oocytes of Xenopus laevis. This protein is encoded by a gene previously shown to be expressed in male and female germ cells, and repressed in somatic cells. The purified protein was identified with EF-1 alpha on criteria of molecular ma...

journal_title：Biochimie

authors： Morales J,Mulner-Lorillon O,Denis H,Bellé R

更新日期：1991-09-01 00:00:00

abstract：:The very end of the chromosome is called the telomere and is composed of DNA repeat sequences and associated proteins. Genetic and biochemical analyses of this complex, the telosome, lead to the hypothesis that transcription and DNA replication are submitted to position effects mediated by the telomere proximity. Telo...

journal_title：Biochimie

authors： Pommier JP,Lebeau J,Ducray C,Sabatier L

更新日期：1995-01-01 00:00:00

abstract：:Glutaredoxins (Grxs), redox-active proteins with a typical -CPYC motif at their active sites, are involved in redox-regulatory processes and antioxidant defenses. The human malarial parasite Plasmodium falciparum possess a classical glutaredoxin (PfGrx) as well as a number of Grx-like proteins. In the present study, w...

journal_title：Biochimie

authors： Tripathi T,Röseler A,Rahlfs S,Becker K,Bhakuni V

更新日期：2010-03-01 00:00:00

abstract：:In the present study we evaluated the effect of chronic methionine administration on oxidative stress and biochemical parameters in liver and serum of rats, respectively. We also performed histological analysis in liver. Results showed that hypermethioninemia increased chemiluminescence, carbonyl content and glutathio...

journal_title：Biochimie

authors： Stefanello FM,Matté C,Pederzolli CD,Kolling J,Mescka CP,Lamers ML,de Assis AM,Perry ML,dos Santos MF,Dutra-Filho CS,Wyse AT

更新日期：2009-08-01 00:00:00

abstract：:Insects have developed an efficient host defense against microorganisms, which involves humoral and cellular mechanisms. Numerous data highlight similarities between defense responses of insects and innate immunity of mammals. The fruit fly, Drosophila melanogaster, is a favorable model system for the analysis of the ...

journal_title：Biochimie

authors： Levy F,Rabel D,Charlet M,Bulet P,Hoffmann JA,Ehret-Sabatier L

更新日期：2004-09-01 00:00:00

abstract：:Our understanding of plant meiosis is rapidly increasing thanks to the model Arabidopsis thaliana. Here we present the results of a screening for meiotic mutants carried out with a library containing 30,719 T-DNA insertion lines. An average of one mutant per 1000 lines was recovered. Several phenotypic classes could b...

journal_title：Biochimie

authors： Mercier R,Grelon M,Vezon D,Horlow C,Pelletier G

更新日期：2001-11-01 00:00:00

abstract：:The complete amino acid sequences of 3 proteins from the 50S subunit of Bacillus stearothermophilus ribosomes were determined by N-terminal sequence analysis and by sequencing of overlapping fragments obtained from enzymatic digestions and chemical cleavages. The proteins BstL28, BstL33 and BstL34, named according to ...

journal_title：Biochimie

authors： Kruft V,Kapp U,Wittmann-Liebold B

更新日期：1991-07-01 00:00:00

abstract：:The conformation of perch parvalbumin in the Ca-, Mg- and metal-free state was studied by intrinsic fluorescence, trypsin susceptibility, thiol titration and circular dichroism. The data reveal that Ca-parvalbumin has a more compact structure than the metal-free protein, with a high alpha-helical content and a buried ...

journal_title：Biochimie

authors： Cox JA,Winge DR,Stein EA

更新日期：1979-01-01 00:00:00

abstract：:Dyskeratosis congenita is an inherited syndrome characterised by mucocutaneous features, bone marrow failure, an increased risk of malignancy and other somatic abnormalities. There is a considerable range of clinical severity and in its occult form the disease may present as idiopathic aplastic anaemia. Genes responsi...

journal_title：Biochimie

authors： Vulliamy TJ,Dokal I

更新日期：2008-01-01 00:00:00

abstract：:In vitro cycling rates of E. coli ribosomes and of elongation factors EF-Tu and EF-G have been obtained and these are compatible with translation rates in vivo. We show that the rate of translocation is faster than 50 s-1 and therefore that the EF-G function is not a rate limiting step in protein synthesis. The in viv...

journal_title：Biochimie

authors： Bilgin N,Kirsebom LA,Ehrenberg M,Kurland CG

更新日期：1988-05-01 00:00:00

abstract：:Betaine aldehyde dehydrogenase from the human opportunistic pathogen Pseudomonas aeruginosa (PaBADH) catalyzes the irreversible, NAD(P)(+)-dependent oxidation of betaine aldehyde, producing glycine betaine, an osmoprotectant. PaBADH participates in the catabolism of choline and likely in the defense against the osmoti...

journal_title：Biochimie

authors： Zaldívar-Machorro VJ,López-Ortiz M,Demare P,Regla I,Muñoz-Clares RA

更新日期：2011-02-01 00:00:00

abstract：:The class I glutamine (Gln) tRNA synthetase interacts with the anticodon and acceptor stem of glutamine tRNA. RNA hairpin helices were designed to probe acceptor stem and anticodon stem-loop contacts. A seven-base pair RNA microhelix derived from the acceptor stem of tRNA(Gln) was aminoacylated by Gln tRNA synthetase....

journal_title：Biochimie

authors： Wright DJ,Martinis SA,Jahn M,Söll D,Schimmel P

更新日期：1993-01-01 00:00:00

abstract：:Various phosphonic and sulfonic glutamate analogues as well as phosphonopeptides related to glutathione were studied for their interaction with rat kidney gamma-glutamylcysteine synthetase activity. We found, in all cases, that the presence of a phosphonic group increases the affinity for the enzyme. Among the tripept...

journal_title：Biochimie

authors： Marche M,Basurko MJ,Cassaigne A

更新日期：1987-05-01 00:00:00

abstract：:Polynucleotide phosphorylase (PNPase, polyribonucleotide nucleotidyltransferase, EC 2.7.7.8) is a multifunctional protein, with a 3'-5' processive exoribonuclease, a Pi exchange, an RNA polymerase and an autoregulatory activity. The interaction between this enzyme and the mRNA target is crucial for its activities. In ...

journal_title：Biochimie

authors： Bermúdez-Cruz RM,García-Mena J,Montañez C

更新日期：2002-04-01 00:00:00

abstract：:Peroxisomes are subcellular organelles which are present in virtually every eukaryotic cell and catalyze a large number of metabolic functions. The importance of peroxisomes for humans is stressed by the existence of a large group of genetic diseases in which either the biogenesis of peroxisomes is impaired or one of ...

journal_title：Biochimie

authors： Wanders RJ

更新日期：2014-03-01 00:00:00

abstract：:The proteasome activators known as 11S REG or PA28 were discovered about 10 years ago. They are homo- or heteroheptameric rings that bind to the ends of 20S proteasomes and activate cleavage of peptides but not folded proteins. In this article, we focus on structural features of three homologous REG subunits (termed a...

journal_title：Biochimie

authors： Li J,Rechsteiner M

更新日期：2001-03-01 00:00:00

abstract：:Estradiol-PAB-cellulose, an easily prepared adsorbent, has been proposed to purify the uterine estradiol receptor according to the principle of biospecific affinity chromatography. It apparently removes all hormone binding sites when cytosol preparations are incubated with it. A systematic study of this adsorbent was ...

journal_title：Biochimie

authors： Best-Belpomme M,Richard-Foy H,Secco-Millet C,Baulieu EE

更新日期：1976-01-01 00:00:00