Isolation and characteristics of mRNPs associated with bound polyribosomes from the ewe lactating mammary gland.

abstract：:EPR spectroscopy in conjunction with oxidation-reduction potentiometry has been used to determine the half-reduction potentials of the four hemes of cytochrome c3. As predicted, the four hemes of cytochrome c3 have different mid-point potentials. The Em values are: Heme I,--284 mV; Heme II,--310 mV; Heme III,--324 mV ...

journal_title：Biochimie

authors： Dervartanian DV,Xavier AV,Gall JL

更新日期：1978-01-01 00:00:00

abstract：:Estrogen plays an essential role in bone formation, and estrogen modulation dysfunction is tightly associated with postmenopausal osteoporosis (PMOP). The underlying mechanisms of estrogen-mediated osteogenic differentiation have not been well defined. In this study, murine bone marrow mesenchymal stem cells were indu...

journal_title：Biochimie

authors： Gao B,Huang Q,Jie Q,Wang L,Zhang HY,Liu J,Yang L,Luo ZJ

更新日期：2015-03-01 00:00:00

abstract：:Protein-induced DNA bridging and looping is a common mechanism for various and essential processes in bacterial chromosomes. This mechanism is preserved despite the very different bacterial conditions and their expected influence on the thermodynamic and kinetic characteristics of the bridge formation and stability. O...

journal_title：Biochimie

authors： Tardin C

更新日期：2017-11-01 00:00:00

abstract：:The inhibitory action on rat liver phosphoglycerate kinase of structural analogs of the two substrates of this enzyme (beta,gamma- methyleneadenosine 5'-triphosphate for ATP and 2-phosphoglycerate for 3-phosphoglycerate) was studied. In the direction of ADP utilization, the inhibition patterns obtained with beta,gamma...

journal_title：Biochimie

authors： Lavoinne A

更新日期：1986-04-01 00:00:00

abstract：:A soluble hydrogenase from the halophilic sulfate reducing bacterium Desulfovibrio salexigens, strain British Guiana (NCIB 8403) has been purified to apparent homogeneity with a final specific activity of 760 mumoles H2 evolved/min/mg (an overall 180-fold purification with 20% recovery yield). The enzyme is composed o...

journal_title：Biochimie

authors： Teixeira M,Moura I,Fauque G,Czechowski M,Berlier Y,Lespinat PA,Le Gall J,Xavier AV,Moura JJ

更新日期：1986-01-01 00:00:00

abstract：:Glycosphingolipids and sphingolipids of cellular plasma membranes (PMs) reach luminal intra-lysosomal vesicles (LVs) for degradation mainly by pathways of endocytosis. After a sorting and maturation process (e.g. degradation of sphingomyelin (SM) and secretion of cholesterol), sphingolipids of the LVs are digested by ...

journal_title：Biochimie

authors： Sandhoff K

更新日期：2016-11-01 00:00:00

abstract：BACKGROUND:Fatty acids (FAs), and especially monounsaturated FAs (MUFAs) stimulate GLP-1 release. However, lipotoxicity is indicated in GLP-1 secreting cells following long-term exposure to elevated levels of saturated FAs (SFAs) in vivo and in vitro, where in vitro studies indicate that cosupplementation with MUFAs co...

journal_title：Biochimie

authors： Ntika S,Thombare K,Aryapoor M,Kristinsson H,Bergsten P,Krizhanovskii C

更新日期：2019-04-01 00:00:00

abstract：:Maximum 125I-IGF-I/Sm-C total binding to chick embryo fibroblasts was 3% at +37 degrees C and decreased to less than 1% in presence of 2.8 X 10(-9) M unlabelled IGF-I/Sm-C. Insulin did not compete with IGF-I/Sm-C for the binding to cells. Biological action of IGF-I/Sm-C was evaluated on 2-deoxyglucose and alpha-aminoi...

journal_title：Biochimie

authors： Cynober L,Aussel C,Chatelain P,Vaubourdolle M,Agneray J,Ekindjian OG

更新日期：1985-10-01 00:00:00

abstract：:Three Plasmodium falciparum serine repeat antigen (SERA) protein peptides were studied by NMR and structure calculations being done in 70:30 water:trifluoroethanol solution. Peptide 22834 was shown to be immunogenic and protective against malaria in Aotus monkeys, whilst native peptide 6737 and its analogue 14096 did ...

journal_title：Biochimie

authors： Cubillos M,Alba MP,Bermúdez A,Trujillo M,Patarroyo ME

更新日期：2003-07-01 00:00:00

abstract：:Influenza virus-associated RNA polymerase is composed of one molecule each of three viral P proteins and carries the complete activity of capped RNA-primed vRNA-directed transcription. The RNA polymerase holoenzyme also carries capped RNA endonuclease to generate capped oligonucleotide primers for transcription and 3'...

journal_title：Biochimie

authors： Ishihama A

更新日期：1996-01-01 00:00:00

abstract：:Analysis of the nucleotide sequence of 1,400 transfer RNAs has revealed the imprint of a prototypic genetic code in position 3-4-5 of the acceptor stem. It appears only in the transfer RNAs for the primordial amino acids ie those found by chemical condensation of a nitrogen-methane-water-ammonia mixture. The model for...

journal_title：Biochimie

authors： Möller W,Janssen GM

更新日期：1990-05-01 00:00:00

abstract：:Inhibition of polypeptide chain elongation with the mRNA-complementary (antisense) oligonucleotide has been realized through a RNase H independent mechanism. Nuclease resistant complementary non-natural alpha-17-mer oligonucleotide did not inhibit cell-free protein biosynthesis of beta-globin in the wheat germ system ...

journal_title：Biochimie

authors： Boutorine AS,Boiziau C,Le Doan T,Toulmé JJ,Hélène C

更新日期：1992-05-01 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：:Previous reports on the carbohydrate specificities of Amaranthus caudatus lectin (ACL) and peanut agglutinin (PNA, Arachis hypogea) indicated that they share the same specificity for the Thomsen-Friedenreich (T(alpha), Galbeta1-3GalNAcalpha1-Ser/Thr) glycotope, but differ in monosaccharide binding--GalNAc>Gal (inactiv...

journal_title：Biochimie

authors： Wu AM,Wu JH,Yang Z,Singh T,Goldstein IJ,Sharon N

更新日期：2008-11-01 00:00:00

abstract：:The interactions of DNA with histone H4 and with its fragments N-H4 (1-84) and C-H4 (85-102) have been studied by using electrooptical techniques, viscosity and electron microscopy. Electron microscopy reveals that histone H4 induces a large folding of DNA molecules : this is in agreement with electrooptical measureme...

journal_title：Biochimie

authors： Palau AO,Mozo A,Querol E

更新日期：1980-01-01 00:00:00

abstract：:Calprotectin (CP) is an abundant protein in human neutrophilic granulocytes and macrophages. In humans, serum, urine, and fecal concentrations of neutrophil-derived proteins, such as CP are used as markers of disease activity for conditions associated with increased neutrophil activity, such as inflammatory bowel dise...

journal_title：Biochimie

authors： Heilmann RM,Suchodolski JS,Steiner JM

更新日期：2008-09-01 00:00:00

abstract：:The nuclear metabolism of poly(ADP-ribose) is mainly regulated by poly(ADP-ribose) polymerase-1 (PARP-1) and by poly(ADP-ribose) glycohydrolase (PARG). A PARP-like enzyme, V-PARP, and a PARG isoform are present in the extra-nuclear compartment of mammalian cells, even if poly(ADP-ribose) has never been detected therei...

journal_title：Biochimie

authors： Rossi L,Denegri M,Torti M,Poirier GG,Ivana Scovassi A

更新日期：2002-12-01 00:00:00

abstract：:Glycolipids constitute a class of molecules with various biological activities. Among them, sugar-based bolaamphiphiles characterized by their biocompatibility, biodegradability and lower toxicity, became interesting for the development of efficient and low cost lipid-based drug delivery systems. Their activity seems ...

journal_title：Biochimie

authors： Nasir MN,Crowet JM,Lins L,Obounou Akong F,Haudrechy A,Bouquillon S,Deleu M

更新日期：2016-11-01 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：: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 cartilage tissue has a limited self-regenerative capacity. Tissue-engineering represents a promising trend for cartilage repair. The present study was aimed to develop a biomaterial formulation by combining fragments of chitosan hydrogel with isolated rabbit or human chondrocytes. We first reported the properties ...

journal_title：Biochimie

authors： Montembault A,Tahiri K,Korwin-Zmijowska C,Chevalier X,Corvol MT,Domard A

更新日期：2006-05-01 00:00:00

abstract：:Three trends are seen in the organization of ribosomal DNA genes during evolution: 1) gradual separation and separability of the regulation of transcription of 5S and larger subunit rRNAs; 2) retention of a transcription unit containing both large and small rRNAs; and 3) clustering of genes for both 5S and 18S-28S rDN...

journal_title：Biochimie

authors： Srivastava AK,Schlessinger D

更新日期：1991-06-01 00:00:00

abstract：:Human mitochondrial aminoacyl-tRNA synthetases (mt-aaRSs), the enzymes which esterify tRNAs with the cognate specific amino acid, form mainly a different set of proteins than those involved in the cytosolic translation machinery. Many of the mt-aaRSs are of bacterial-type in regard of sequence and modular structural o...

journal_title：Biochimie

authors： Messmer M,Blais SP,Balg C,Chênevert R,Grenier L,Lagüe P,Sauter C,Sissler M,Giegé R,Lapointe J,Florentz C

更新日期：2009-05-01 00:00:00

abstract：:Long-term exposure to high doses of caffeine affects several aspects of nitrogen metabolism, such as purine, pyrimidine and urea synthesis. However, little is known about the mechanisms of these changes and if they occur at shorter term. We have studied in isolated hepatocytes: 1) the in vitro effect of high doses of ...

journal_title：Biochimie

authors： Jordá A,Saéz GT,Portolés M,Pallardó FV,Jimenez-Nacher I,Gascoó E

更新日期：1988-10-01 00:00:00

abstract：:The solubilizing powers of taurocholate, taurochenodeoxycholate and tauroursodeoxycholate for monoolein and cholesterol, and the size of the bile salt-monoolein-cholesterol micelles have been determined. For the three bile salt species, the micellar size depends on the saturation with monoolein. As a result, for a giv...

journal_title：Biochimie

authors： Montet JC,Lindheimer M,Reynier MO,Crotte C,Bontemps R,Gerolami A

更新日期：1982-04-01 00:00:00

abstract：:Thorium-232 ((232)Th), a natural radionuclide from the actinide family, is abundantly present in monazite and other ores. It is used as one of the prime fuel materials in nuclear industry and may pose an exposure risk to nuclear workers and members of the public. Human erythrocytes, as a classical cellular membrane mo...

journal_title：Biochimie

authors： Kumar A,Ali M,Pandey BN,Hassan PA,Mishra KP

更新日期：2010-07-01 00:00:00

abstract：:Hemorrhage is the most potent manifestation of envenomation by Vipera ammodytes ammodytes (V. a. ammodytes) venom in man. A detailed description of the venom components contributing to this effect is thus medically very important. We have characterized a novel component, termed here VaH3, as a potently hemorrhagic sna...

journal_title：Biochimie

authors： Sajevic T,Leonardi A,Kovačič L,Lang-Balija M,Kurtović T,Pungerčar J,Halassy B,Trampuš-Bakija A,Križaj I

更新日期：2013-06-01 00:00:00

abstract：:The hbs operon of Bacillus subtilis comprises a single gene which is localized between the spoIVA and mtrA open reading frames, and is situated at 204 degrees of the standard map of B subtilis. Expression of hbs is initiated from two distinct promoters called P1 and P2. The transcription initiation sites have been map...

journal_title：Biochimie

authors： Micka B,Marahiel MA

更新日期：1992-07-01 00:00:00

abstract：:Conformational changes induced by the binding of nickel to horseradish peroxidase C (HRPC) were studied by electronic absorption spectroscopy, fluorescence spectroscopy and circular dichroism spectroscopy. Incubation of HRPC with various concentrations of Ni(2+) for 5 minutes resulted in changes in the enzyme absorpti...

journal_title：Biochimie

authors： Tayefi-Nasrabadi H,Keyhani E,Keyhani J

更新日期：2006-09-01 00:00:00

abstract：:We extracted from L. biflexa patoc a fraction F, reacting in hemagglutination and ring tests with sera prepared against more than ten different serogroups. This fraction contains mainly a polysaccharide (65 per cent), the role of which was clearly demonstrated in the precipitation reaction with homologous antisera, th...

journal_title：Biochimie

authors： Gabay J,Tinelli R

更新日期：1976-01-01 00:00:00