The orientations of core antenna chlorophylls in photosystem II are optimized to maximize the quantum yield of photosynthesis.

abstract：:Study of the relative proportions of ribosomes and polysomes released by a standardized lysing procedure from isogenic RC(str) and RC(rel) strains of Escherichia coli shows that a 20-min period of amino acid starvation of RC(str) bacteria reduces the fraction of ribosomes recovered in polysomes to about 60% of its val...

journal_title：FEBS letters

authors： Matzura H

更新日期：1970-01-15 00:00:00

abstract：:Differentiation of glia (astrocytes and oligodendrocytes) in Drosophila requires the gene glial cells missing (gcm), which controls lineage determination. In the absence of gcm, neuroglia progenitors exclusively differentiate into neurons, instead of into both neurons and glia. In contrast, ectopic overexpression of g...

journal_title：FEBS letters

authors： Altshuller Y,Copeland NG,Gilbert DJ,Jenkins NA,Frohman MA

更新日期：1996-09-16 00:00:00

abstract：:The major mono- and disialogangliosides of the extensively characterized established human glioma line D54MG were isolated and purified from subcutaneous solid xenografts grown in athymic (nu/nu) mice. Structural determination showed that they belonged to the lactotetraosylceramide series. The sialyllactotetraosylcera...

journal_title：FEBS letters

authors： Månsson JE,Fredman P,Bigner DD,Molin K,Rosengren B,Friedman HS,Svennerholm L

更新日期：1986-05-26 00:00:00

abstract：:Chromogranin A is known to undergo pH induced conformational changes, and the difference in conformation is supposed to be responsible for the difference in Ca2+ binding property. To gain insight regarding the overall structure and the nature of pH-induced conformational changes of chromogranin A, limited trypsin dige...

journal_title：FEBS letters

authors： Yoo SH,Ferretti JA

更新日期：1993-11-22 00:00:00

abstract：:Limb girdle muscular dystrophy type 2A is linked to a skeletal muscle-specific calpain isoform known as p94. Isolation of the intact 94-kDa enzyme has been difficult to achieve due to its rapid autolysis, and uncertainty has arisen over its Ca2+-dependence for activity. We have expressed a C-terminally truncated form ...

journal_title：FEBS letters

authors： Rey MA,Davies PL

更新日期：2002-12-18 00:00:00

abstract：:Regulatory protein kinases are involved in various cellular processes such as proliferation, differentiation, and apoptosis. Using cDNA differential display, we identified MOK, a member of the mitogen-activated protein kinase superfamily, as one of the genes induced by a caudal-related homeobox transcription factor, C...

journal_title：FEBS letters

authors： Uesaka T,Kageyama N

更新日期：2004-08-27 00:00:00

abstract：:Several clinical studies have shown that cyclosporin A (CsA) is effective for treating a variety of chronic inflammatory and autoimmune diseases. Because reactive oxygen species are believed to play a key role in the development of these diseases, causing cell apoptosis, we investigated whether CsA inhibits H2O2-induc...

journal_title：FEBS letters

authors： Sugano N,Ito K,Murai S

更新日期：1999-03-26 00:00:00

abstract：:The photochemical reaction center of Chloroflexus (Cf.) aurantiacus, a membrane bound pigment-protein complex, has been crystallized in the presence of monodisperse polyoxyethylene detergents. The crystals possessed a pronounced polymorphism. Three different crystal forms belonging to triclinic, monoclinic and orthorh...

journal_title：FEBS letters

authors： Feick R,Ertlmaier A,Ermler U

更新日期：1996-11-04 00:00:00

abstract：:While negative effect of smoking on the resistance to viral infections was known, the underlying mechanisms remained unclear. Here we report that products of cigarette smoking compromise the cellular anti-viral defenses by inhibiting the signaling induced by Type I interferon (IFN). Cigarette smoking condensate (but n...

journal_title：FEBS letters

authors： HuangFu WC,Liu J,Harty RN,Fuchs SY

更新日期：2008-09-22 00:00:00

abstract：:A characteristic of the antioxidant, probucol, is its inability to inhibit apolipoprotein B fragmentation in low density lipoprotein (LDL), despite a pronounced ability to inhibit lipid oxidation on relatively lengthy exposure to Cu(II). Here we show that a short exposure of LDL to hydrogen peroxide and Cu(II) leads t...

journal_title：FEBS letters

authors： Hunt JV,Bailey JR,Schultz DL,McKay AG,Mitchinson MJ

更新日期：1994-08-08 00:00:00

abstract：:Hell's Gate globin I (HGbI), a heme-containing protein structurally homologous to mammalian neuroglobins, has been identified from an acidophilic and thermophilic obligate methanotroph, Methylacidiphilum infernorum. HGbI has very high affinity for O(2) and shows barely detectable autoxidation in the pH range of 5.2-8....

journal_title：FEBS letters

authors： Teh AH,Saito JA,Baharuddin A,Tuckerman JR,Newhouse JS,Kanbe M,Newhouse EI,Rahim RA,Favier F,Didierjean C,Sousa EH,Stott MB,Dunfield PF,Gonzalez G,Gilles-Gonzalez MA,Najimudin N,Alam M

更新日期：2011-10-20 00:00:00

abstract：:The domains of the pore-forming protein responsible for the gate and channel formations were separated and identified in the outer membrane of Pseudomonas aeruginosa. The proteolytic cleavage of the 46K channel protein, protein D2, yielded two major domains with apparent M(r) of 27K and 19K. We identified the 27K poly...

journal_title：FEBS letters

authors： Yoshihara E,Nakae T

更新日期：1992-07-13 00:00:00

abstract：:Coding region and intronic mutations in the gene for microtubule-associated protein tau cause frontotemporal dementia and Parkinsonism linked to chromosome 17 (FTDP-17). Most coding region mutations effect a reduced ability of tau protein to interact with microtubules and lead to the formation of a filamentous patholo...

journal_title：FEBS letters

authors： Smith MJ,Crowther RA,Goedert M

更新日期：2000-11-10 00:00:00

abstract：:We have identified an Arabidopsis thaliana cDNA, designated as AtTBP1, encoding a protein with a predicted size of 70.6 kDa that specifically binds to the plant telomeric repeat sequence TTTAGGG. AtTBP1 is present as a single-copy gene in Arabidopsis genome and is expressed ubiquitously in various organs. AtTBP1 has a...

journal_title：FEBS letters

authors： Hwang MG,Chung IK,Kang BG,Cho MH

更新日期：2001-08-10 00:00:00

abstract：:To address biophysical principles and lipid interactions that underlie the properties of membrane proteins, modifications that vary the neighbors of tryptophan residues in the highly dynamic transmembrane helix of GW4,20 ALP23 (acetyl-GGAW4 A(LA)6 LAW20 AGA-amide) were examined using deuterium NMR spectroscopy. It was...

journal_title：FEBS letters

authors： McKay MJ,Greathouse DV,Koeppe RE 2nd

更新日期：2020-12-01 00:00:00

abstract：:The structure of the Ala38 variant of yeast iso-1-cytochrome c, in which the previously unchanged Arg38 has been replaced, has been characterised by NMR. The NMR data indicate that the structure of the Ala38 variant is very similar to that of the wild type protein. In particular, the heme environment and interactions ...

journal_title：FEBS letters

authors： Thurgood AG,Pielak GJ,Cutler RL,Davies AM,Greenwood C,Mauk AG,Smith M,Williamson DJ,Moore GR

更新日期：1991-06-24 00:00:00

abstract：:Anandamide (AEA) exhibits anti-inflammatory effects. However, its role in the periodontal field remains unknown. Here, we found that gingival crevicular fluid contained a detectable level of AEA. The cannabinoid receptors CB1 and CB2 were expressed by human gingival fibroblasts (HGFs), and markedly upregulated under p...

journal_title：FEBS letters

authors： Nakajima Y,Furuichi Y,Biswas KK,Hashiguchi T,Kawahara K,Yamaji K,Uchimura T,Izumi Y,Maruyama I

更新日期：2006-01-23 00:00:00

abstract：:We report that glycolysis in human quiescent fibroblasts stimulated by serum addition is increased, and that the changes of the metabolic route reflect the activity of the phosphofructokinase. A possible role of fructose-2,6-bisphosphate as a positive modulator of the key enzyme is proposed. ...

journal_title：FEBS letters

authors： Bruni P,Farnararo M,Vasta V,D'Alessandro A

更新日期：1983-08-08 00:00:00

abstract：:The trk family of tyrosine protein kinase genes serves crucial roles for the development of the nervous system and the survival of neurons. The members of this gene family, trk, trkB and trkC, bind a distinct neurotrophin of the nerve growth factor (NGF) gene family, and trigger the intracellular signals which elicit ...

journal_title：FEBS letters

authors： Okazawa H,Kamei M,Kanazawa I

更新日期：1993-08-23 00:00:00

abstract：:Prokaryotic aminoacylated-transfer RNAs often need to be efficiently segregated between translation and other cellular biosynthetic pathways. Many clinically relevant bacteria, including Streptococcus pneumoniae, Staphylococcus aureus, Enterococcus faecalis and Pseudomonas aeruginosa direct some aminoacylated-tRNA spe...

journal_title：FEBS letters

authors： Shepherd J,Ibba M

更新日期：2013-09-17 00:00:00

abstract：:Mod5 is a multifunctional protein that modifies a subset of tRNAs in the cytoplasm and is also required for an RNA-mediated form of transcriptional silencing. Previous in vivo studies have shown that the nuclear silencing function of Mod5 does not require that the causative tRNA gene encode a Mod5 substrate, although ...

journal_title：FEBS letters

authors： Read DF,Waller TJ,Tse E,Southworth DR,Engelke DR,Smaldino PJ

更新日期：2017-06-01 00:00:00

abstract：:Prolonged incubation of membrane fragments containing homogeneous (Na+ + K+)-ATPase with Mg2+, K+ and VO-3 at 4 degrees C resulted in formation of two-dimensional crystals of this enzyme with unit cell parameters: a = 66 A, b = 118 A, gamma = 108 degrees. The crystals correspond to the two-sided plane group p21. By co...

journal_title：FEBS letters

authors： Ovchinnikov YuA,Demin VV,Barnakov AN,Kuzin AP,Lunev AV,Modyanov NN,Dzhandzhugazyan KN

更新日期：1985-10-07 00:00:00

abstract：:At alpha 1-adrenergic receptors in isolated rat liver parenchymal cells, (-)-epinephrine is potent in eliciting a maximal increase in glycogenolysis (Kact = 24 nM). This contrasts with a 100-fold lower affinity for the agonist at alpha 1-adrenergic receptors of intact hepatocytes determined from equilibrium competitio...

journal_title：FEBS letters

authors： Schwarz KR,Lanier SM,Carter EA,Graham RM,Homcy CJ

更新日期：1985-08-05 00:00:00

abstract：:Apolipoprotein E (APOE) genotype determines Alzheimer's disease (AD) susceptibility, with the APOE ε4 allele being an established risk factor for late-onset AD. The ApoE lipidation status has been reported to impact amyloid-beta (Aβ) peptide metabolism. The details of how lipidation affects ApoE behavior remain to be ...

journal_title：FEBS letters

authors： Hubin E,Verghese PB,van Nuland N,Broersen K

更新日期：2019-06-01 00:00:00

abstract：:The possible relationship between pyridoxal phosphate-dependent ornithine decarboxylase (ODC) activity and glucose-6-phosphate dehydrogenase (G6PD) activity has been studied in the osteoblasts of the growth-plate of metatarsals of rats fed a pyridoxine-deficient diet, which caused depressed G6PD levels. The G6PD activ...

journal_title：FEBS letters

authors： Dodds RA,Dunham J,Bitensky L,Chayen J

更新日期：1986-05-26 00:00:00

abstract：:The number of synthetic UTP analogues containing methyl groups in different positions of the ribose moiety were tested as substrates for T7 RNA polymerase (T7 RNAP). Two of these compounds (containing substituents in the 5' position) were shown to be weak substrates of T7 RNAP. 3'Me-UTP was neither substrate nor inhib...

journal_title：FEBS letters

authors： Tunitskaya VL,Rusakova EE,Padyukova NSh,Ermolinsky BS,Chernyi AA,Kochetkov SN,Lysov YuP,Mikhailov SN

更新日期：1997-01-06 00:00:00

abstract：:We demonstrated that unmodified and modified (phosphorothioate) oligonucleotides prevent cDNA synthesis by AMV or HIV reverse transcriptases. Antisense oligonucleotide/RNA hybrids specifically arrest primer extension. The blockage involves the degradation of the RNA fragment bound to the antisense oligonucleotide by t...

journal_title：FEBS letters

authors： Hatta T,Kim SG,Nakashima H,Yamamoto N,Sakamoto K,Yokoyama S,Takaku H

更新日期：1993-09-13 00:00:00

abstract：:Homocysteine thiolactone is a product of an error-editing reaction, catalyzed by Escherichia coli and Saccharomyces cerevisiae methionyl-tRNA synthetases, which prevents incorporation of homocysteine into tRNA and protein both in vitro and in vivo. Here, homocysteine thiolactone is also shown to be synthesized by cult...

journal_title：FEBS letters

authors： Jakubowski H,Goldman E

更新日期：1993-02-15 00:00:00

abstract：:The amino acid residue Asn141 of the restriction endonuclease EcoRI was proposed to make three hydrogen bonds to both adenine residues within the recognition sequence -GAATTC-. We have mutated Asn141 to alanine, aspartate, serine, and tyrosine. Only the serine mutant is active under normal buffer conditions although 1...

journal_title：FEBS letters

authors： Fritz A,Küster W,Alves J

更新日期：1998-10-30 00:00:00

abstract：:Lung surfactant secretion is a highly regulated process. Our previous studies have shown that VAMP-2 is essential for surfactant secretion. In the present study we investigated the role of miR-206 in surfactant secretion through VAMP-2. VAMP-2 was confirmed to be a target of miR-206 by 3'-untranslational region (3'-UT...

journal_title：FEBS letters

authors： Zhang H,Guo Y,Mishra A,Gou D,Chintagari NR,Liu L

更新日期：2015-01-02 00:00:00