Recent structural studies of RNA polymerases II and III.

abstract：:Growing evidence supports the view that LDs (lipid droplets) are dynamic organelles that can serve both as an intracellular signalling compartment and as an organizing platform orchestrating many vital processes in eukaryotic cells. It has become clear that the LDs-confined deposition and lipolytic degradation of neut...

journal_title：Biochemical Society transactions

authors： Goldberg AA,Bourque SD,Kyryakov P,Boukh-Viner T,Gregg C,Beach A,Burstein MT,Machkalyan G,Richard V,Rampersad S,Titorenko VI

更新日期：2009-10-01 00:00:00

abstract：:PTM (post-translational modification) is the chemical modification of a protein after its translation. The well-studied PTM is phosphorylation, but, recently, PTMs have been re-focused by extensive studies on histone modifications and the discovery of the ubiquitin system. Histone acetylation is the well-established e...

journal_title：Biochemical Society transactions

authors： Ito K

更新日期：2007-04-01 00:00:00

abstract：:Voltage-gated K(+) channels are key regulators of neuronal excitability. The Kv2.1 voltage-gated K(+) channel is the major delayed rectifier K(+) channel expressed in most central neurons, where it exists as a highly phosphorylated protein. Kv2.1 plays a critical role in homoeostatic regulation of intrinsic neuronal e...

journal_title：Biochemical Society transactions

authors： Mohapatra DP,Park KS,Trimmer JS

更新日期：2007-11-01 00:00:00

abstract：:Sorting of activated epidermal growth factor receptor (EGFR) into intraluminal vesicles (ILVs) within the multivesicular body (MVB) is an essential step during the down-regulation of the receptor. The machinery that drives EGFR sorting attaches to the cytoplasmic face of the endosome and generates vesicles that bud in...

journal_title：Biochemical Society transactions

authors： Tabernero L,Woodman P

更新日期：2018-10-19 00:00:00

abstract：:Glycation is one of the important reactions regulating physiological state, and glycative stress, namely an overwhelming and unfavourable glycation state, is established as a pathological factor. Glycative stress is closely associated with not only various kidney diseases, but also kidney aging. Accumulating evidence,...

journal_title：Biochemical Society transactions

authors： Inagi R

更新日期：2014-04-01 00:00:00

abstract：:Inflammation and dyslipidaemia both play important roles in the development of glomerular atherosclerosis in renal diseases. We have demonstrated that inflammatory mediators induced Scr (scavenger receptor) expression and the formation of foam cells, and that AP-1 (activator protein 1)/ets were necessary transcription...

journal_title：Biochemical Society transactions

authors： Ruan XZ,Moorhead JF,Fernando R,Wheeler DC,Powis SH,Varghese Z

更新日期：2004-02-01 00:00:00

abstract：:Extracellular electron transfer has, in one decade, emerged from an environmental phenomenon to an industrial process driver. On the one hand, electron transfer towards anodes leads to production of power or chemicals such as hydrogen, caustic soda and hydrogen peroxide. On the other hand, electron transfer from catho...

journal_title：Biochemical Society transactions

authors： Desloover J,Arends JB,Hennebel T,Rabaey K

更新日期：2012-12-01 00:00:00

abstract：:The thermoacidophile crenarchaeote Sulfolobus ssp. is one of the best-studied Archaea. Cryptic and conjugative plasmids as well as viruses have been described for this genus. For the majority of the genetic elements only the genome sequence and the basic characteristics were determined. In contrast the fusellovirus SS...

journal_title：Biochemical Society transactions

authors： Lipps G

更新日期：2004-04-01 00:00:00

abstract：:Complex brains have developed specialized mechanisms for the grouping of principal cells into temporal coalitions of local or distant networks: the inhibitory interneuron 'clocking' networks. They consist of GABAergic (where GABA is gamma-aminobutyric acid) interneurons of a rich diversity. In cortical circuits, these...

journal_title：Biochemical Society transactions

authors： Möhler H

更新日期：2009-12-01 00:00:00

abstract：:Large single crystals (up to 1 mm in each dimension) of the B800-850 antenna complex from Rhodopseudomonas acidophila strain 10050 have been grown in the presence of beta-octyl-glucoside. These crystals have the space group R32 and unit cell dimensions of a = b = 119.9 A and c = 297.0 A. Recently we have improved our ...

journal_title：Biochemical Society transactions

authors： Cogdell RJ,Halloren E,Hawthornthwaite AM,Thunnissen MM,Freer AA,McDermott G,Guthrie N,Isaacs N,Lindsay JG,Papiz M

更新日期：1993-02-01 00:00:00

abstract：:DNA topology changes dynamically during DNA replication. Supercoiling, precatenation, catenation and knotting interplay throughout the process that is finely regulated by DNA topoisomerases. In the present article, we provide an overview of theoretical and experimental approaches to understand the interplay between va...

journal_title：Biochemical Society transactions

authors： Schvartzman JB,Martínez-Robles ML,Hernández P,Krimer DB

更新日期：2013-04-01 00:00:00

abstract：:In nearly all somatic cells, the ribosome biosynthesis is a key activity. The same is true also for mammalian oocytes and early embryos. This activity is intimately linked to the most prominent nuclear organelles - the nucleoli. Interestingly, during a short period around fertilization, the nucleoli in oocytes and emb...

journal_title：Biochemical Society transactions

authors： Fulka H,Rychtarova J,Loi P

更新日期：2020-04-29 00:00:00

abstract：:The backbones of proteins form linear chains. In the case of some proteins, these chains can be characterized as forming linear open knots. The knot type of the full chain reveals only limited information about the entanglement of the chain since, for example, subchains of an unknotted protein can form knots and subch...

journal_title：Biochemical Society transactions

authors： Rawdon EJ,Millett KC,Sułkowska JI,Stasiak A

更新日期：2013-04-01 00:00:00

abstract：:Polarized transport of the plant hormone auxin influences multiple growth processes in plants and is regulated by plasma-membrane-localized efflux and uptake carriers. The PGP (P-glycoprotein) ABC transporters (ATP-binding-cassette transporters), PIN (pin-formed) subfamily of major facilitator proteins and members of ...

journal_title：Biochemical Society transactions

authors： Bandyopadhyay A,Blakeslee JJ,Lee OR,Mravec J,Sauer M,Titapiwatanakun B,Makam SN,Bouchard R,Geisler M,Martinoia E,Friml J,Peer WA,Murphy AS

更新日期：2007-02-01 00:00:00

abstract：:Crystal structures combined with biochemical data show that the delta-endotoxins from Bacillus thuringiensis are structurally poised towards large-scale, irreversible conformational changes that transform them from the soluble protein bound at the cell surface into a membrane-embedded form causing lysis of susceptible...

journal_title：Biochemical Society transactions

authors： Li J,Derbyshire DJ,Promdonkoy B,Ellar DJ

更新日期：2001-08-01 00:00:00

abstract：:This review focuses on recent insights into the mechanisms and the biological functions of the proteasome. This large ATP-dependent proteolytic complex is the main site for protein degradation in mammalian cells and catalyses the rapid degradation of ubiquitinated proteins, and is the source of most antigenic peptides...

journal_title：Biochemical Society transactions

authors： Goldberg AL

更新日期：2007-02-01 00:00:00

abstract：:Human adipose tissue has an important protein secretory function. Cytokines, hormones, prohormones and enzymes are secreted from fat cells and act in an endocrine or paracrine fashion. The production of several of these proteins is affected by obesity; normally there is an increase in the obese state. Protein producti...

journal_title：Biochemical Society transactions

authors： Arner P

更新日期：2001-05-01 00:00:00

abstract：:The Cat family of genes have revealed unexpected complexity and regulation. The first 5 years of research have been productive, yet many important questions remain to be addressed. A major problem for the field of amino acid transport is a severe paucity of data on the structure of these proteins and their arrangement...

journal_title：Biochemical Society transactions

authors： MacLeod CL

更新日期：1996-08-01 00:00:00

abstract：:Glutamate transporters are essential for terminating synaptic excitation and for maintaining extracellular glutamate concentrations below neurotoxic levels. These transporters also mediate a thermodynamically uncoupled chloride flux that is activated by two of the molecules that they transport - sodium and glutamate. ...

journal_title：Biochemical Society transactions

authors： Kanner BI,Kavanaugh MP,Bendahan A

更新日期：2001-11-01 00:00:00

abstract：:The function of biomolecules is intrinsically linked to their structure and the complexes they form during function. Techniques for the determination of structures and dynamics of these nanometre assemblies are therefore important for an understanding on the molecular level. PELDOR (pulsed electron-electron double res...

journal_title：Biochemical Society transactions

authors： Reginsson GW,Schiemann O

更新日期：2011-01-01 00:00:00

abstract：:SOEs (sulfite-oxidizing enzymes) are physiologically vital and occur in all forms of life. During the catalytic cycle, the five-co-ordinate square pyramidal oxo-molybdenum active site passes through the Mo(V) state, and intimate details of the structure can be obtained from variable frequency pulsed EPR spectroscopy t...

journal_title：Biochemical Society transactions

authors： Enemark JH,Astashkin AV,Raitsimring AM

更新日期：2008-12-01 00:00:00

abstract：:From a random transposon mutagenesis experiment, using Petunia line W138, a seed-specific linoleic acid mutant was isolated. The tagged gene was cloned and identified as a microsomal Delta(12) desaturase. Expression of the gene, however, was constitutive and not, as might have been expected, seed-specific. Moreover, s...

journal_title：Biochemical Society transactions

authors： Verwoert I,Meller-Harel Y,van der Linden K,Verbree B,Koes R,Stuitje A

更新日期：2000-12-01 00:00:00

abstract：:In the intracellular microenvironment of active muscle tissue, high rates of respiration are maintained at near-limiting oxygen concentrations. The respiration of isolated heart mitochondria is a hyperbolic function of oxygen concentration and half-maximal rates were obtained at 0.4 and 0.7 microM O(2) with substrates...

journal_title：Biochemical Society transactions

authors： Gnaiger E,Kuznetsov AV

更新日期：2002-04-01 00:00:00

abstract：:NO (nitric oxide) is a signal molecule involved in diverse physiological processes in cells which can become very toxic under certain conditions determined by its rate of production and diffusion. Several studies have clearly shown the production of NO in early stages of rhizobia-legume symbiosis and in mature nodules...

journal_title：Biochemical Society transactions

authors： Sánchez C,Cabrera JJ,Gates AJ,Bedmar EJ,Richardson DJ,Delgado MJ

更新日期：2011-01-01 00:00:00

abstract：:SUMO (small ubiquitin-related modifier) modification is emerging as an important post-translational control in transcription. In general, SUMO modification is associated with transcriptional repression. Although many SUMO-modified transcription factors and co-activators have been identified, little is known about the ...

journal_title：Biochemical Society transactions

authors： Shih HM,Chang CC,Kuo HY,Lin DY

更新日期：2007-12-01 00:00:00

abstract：:An RNA world has been placed centre stage for explaining the origin of life. Indeed, RNA is the most plausible molecule able to form both a (self)-replicator and to inherit information, necessities for initiating genetics. However, in parallel with self-replication, the proto-organism had to obtain the ability to cata...

journal_title：Biochemical Society transactions

authors： Ralser M

更新日期：2014-08-01 00:00:00

abstract：:Identified five decades ago amongst the most abundant cellular RNAs, small nucleolar RNAs (snoRNAs) were initially described as serving as guides for the methylation and pseudouridylation of ribosomal RNA through direct base pairing. In recent years, however, increasingly powerful high-throughput genomic approaches an...

journal_title：Biochemical Society transactions

authors： Bergeron D,Fafard-Couture É,Scott MS

更新日期：2020-04-29 00:00:00

abstract：:Invertebrates use a wide range of peptides as transmitters and hormones to regulate complex behaviour, physiology and development. These animals, especially those that are amenable to genetic study and are the subject of genome-sequencing projects, provide powerful model systems for understanding the functions of pept...

journal_title：Biochemical Society transactions

authors： Isaac RE,Siviter RJ,Stancombe P,Coates D,Shirras AD

更新日期：2000-01-01 00:00:00

abstract：:ATP-binding cassette (ABC) transporters play crucial roles in cellular processes, such as nutrient uptake, drug resistance, cell-volume regulation and others. Despite their importance, all proposed molecular models for transport are based on indirect evidence, i.e. functional interpretation of static crystal structure...

journal_title：Biochemical Society transactions

authors： Husada F,Gouridis G,Vietrov R,Schuurman-Wolters GK,Ploetz E,de Boer M,Poolman B,Cordes T

更新日期：2015-10-01 00:00:00

abstract：:Exosomes are small extracellular vesicles which stem from endosomes fusing with the plasma membrane; they contain lipids, proteins and RNAs that are able to modify receiving cells. Functioning of the brain relies on synapses, and certain patterns of synaptic activity can change the strength of responses at sparse grou...

journal_title：Biochemical Society transactions

authors： Chivet M,Javalet C,Hemming F,Pernet-Gallay K,Laulagnier K,Fraboulet S,Sadoul R

更新日期：2013-02-01 00:00:00