Critique of the demographic evidence for 'late-life non-senescence'.

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：:Tandem repeats (TR) in proteins are common in nature and have several unique functions. They come in various forms that are frequently difficult to recognize from a sequence. A previously proposed structural classification has been recently implemented in the RepeatsDB database. This defines five main classes, mainly ...

journal_title：Biochemical Society transactions

authors： Paladin L,Tosatto SC

更新日期：2015-10-01 00:00:00

abstract：:Recently, there have been significant advancements in dynamic-mode atomic force microscopy (AFM) for biological applications. With frequency modulation AFM (FM-AFM), subnanometer-scale surface structures of biomolecules such as secondary structures of proteins, phosphate groups of DNAs, and lipid-ion complexes have be...

journal_title：Biochemical Society transactions

authors： Fukuma T

更新日期：2020-08-28 00:00:00

abstract：:Synapses, points of contact between axons and dendrites, are conduits for the flow of information in the circuitry of the central nervous system. The strength of synaptic transmission reflects the interconnectedness of the axons and dendrites at synapses; synaptic strength in turn is modified by the frequency with whi...

journal_title：Biochemical Society transactions

authors： Richter JD

更新日期：2010-12-01 00:00:00

abstract：:A general strategy is described for the amplified expression, purification and characterization in Escherichia coli of multidrug efflux proteins from Staphylococcus aureus, Bacillus subtilis, Methanococcus janaschii and E. coli. They all catalyse drug/H(+) antiport of substrates such as quinolones and ethidium and exe...

journal_title：Biochemical Society transactions

authors： Henderson PJ,Hoyle CK,Ward A

更新日期：2000-01-01 00:00:00

abstract：:The inositol-depletion hypothesis was suggested to explain the therapeutic mechanism of mood-stabilizing drugs. Focus was previously on the phosphatidylinositol signalling pathway and on the regulatory roles of Ins(3,4,5)P(3) and DAG (diacylglycerol). Recent findings indicate that inositol and inositol-containing mole...

journal_title：Biochemical Society transactions

authors： Deranieh RM,Greenberg ML

更新日期：2009-10-01 00:00:00

abstract：:DNA methylation at the fifth position of cytosine is a major epigenetic mark conserved in plants and mammals. Genome-wide DNA methylation patterns are dynamically controlled by integrated activities of establishment, maintenance, and removal. In both plants and mammals, a pattern of global DNA hypomethylation coupled ...

journal_title：Biochemical Society transactions

authors： Zhang H,Zhang K,Zhu JK

更新日期：2019-08-30 00:00:00

abstract：:Autophagosomes form in eukaryotic cells in response to starvation or to other stress conditions brought about by the unwanted presence in the cytosol of pathogens, damaged organelles or aggregated protein assemblies. The uniqueness of autophagosomes is that they form de novo and that they are the only double-membraned...

journal_title：Biochemical Society transactions

authors： Ktistakis NT,Karanasios E,Manifava M

更新日期：2014-10-01 00:00:00

abstract：:In fluctuating environmental conditions, organisms must modulate their bioenergetic production in order to maintain cellular homeostasis for optimal fitness. Mitochondria are hubs for metabolite and energy generation. Mitochondria are also highly dynamic in their function: modulating their composition, size, density, ...

journal_title：Biochemical Society transactions

authors： Tsuboi T,Leff J,Zid BM

更新日期：2020-11-27 00:00:00

abstract：:Bioprocess monitoring is used to track the progress of a cell culture and ensure that the product quality is maintained. Current schemes for monitoring metabolism rely on offline measurements of samples of the extracellular medium. However, in the era of synthetic biology, it is now possible to design and implement bi...

journal_title：Biochemical Society transactions

authors： Constantinou A,Polizzi KM

更新日期：2013-10-01 00:00:00

abstract：:Rho-family GTPases regulate various aspects of cell function by controlling cytoskeletal changes; however, their spatial regulation within the cells remains largely unknown. To understand this regulation, we have studied the spatiotemporal activity of Rho-family GTPases in migrating cells and growth factor-stimulated ...

journal_title：Biochemical Society transactions

authors： Kurokawa K,Nakamura T,Aoki K,Matsuda M

更新日期：2005-08-01 00:00:00

abstract：:The statins, simvastatin and atorvastatin are the most widely prescribed drugs. Statins lower cholesterol levels through their action on HMG-CoA (3-hydroxy-3-methylglutaryl-CoA) reductase, an essential enzyme for the biosynthesis of cholesterol. Fungal HMG-CoA reductases are also inhibited by statins, resulting in red...

journal_title：Biochemical Society transactions

authors： Wikhe K,Westermeyer C,Macreadie IG

更新日期：2007-12-01 00:00:00

abstract：:The human prostate expresses very high concentrations of annexins 1, 4, and 5 and secretes high concentrations of annexins 1 and 5. Although the biological roles of these proteins in prostate secretions are not known, these studies emphasize the need to consider extracellular sites for physiological functions of annex...

journal_title：Biochemical Society transactions

authors： Haigler HT,Christmas P

更新日期：1990-12-01 00:00:00

abstract：:Non-alcoholic fatty liver disease (NAFLD) is one of the most common liver disorders in industrialized countries. NAFLD develops in the absence of alcohol abuse and encompasses a wide spectrum of disorders ranging from benign fatty liver to non-alcoholic steatohepatitis (NASH). NASH often leads to fibrosis, cirrhosis a...

journal_title：Biochemical Society transactions

authors： Cano A,Alonso C

更新日期：2014-10-01 00:00:00

abstract：:Increased production of amyloid β-peptide (Aβ) and altered processing of tau in Alzheimer's disease (AD) are associated with synaptic dysfunction, neuronal death and cognitive and behavioural deficits. Neuroinflammation is also a prominent feature of AD brain and considerable evidence indicates that inflammatory event...

journal_title：Biochemical Society transactions

authors： Phillips EC,Croft CL,Kurbatskaya K,O'Neill MJ,Hutton ML,Hanger DP,Garwood CJ,Noble W

更新日期：2014-10-01 00:00:00

abstract：:Vitamin B12 (cobalamin) is a cobalt-containing modified tetrapyrrole that is an essential nutrient for higher animals. Its biosynthesis is restricted to certain bacteria and requires approximately 30 enzymatic steps for its complete de novo construction. Remarkably, two distinct biosynthetic pathways exist, which are ...

journal_title：Biochemical Society transactions

authors： Moore SJ,Warren MJ

更新日期：2012-06-01 00:00:00

abstract：:Resistance-exercise training results in a progressive increase in muscle mass and force production. Following an acute bout of resistance exercise, the rate of protein synthesis increases proportionally with the increase in protein degradation, correlating at 3 h in the starved state. Amino acids taken immediately bef...

journal_title：Biochemical Society transactions

authors： Mackenzie MG,Hamilton DL,Murray JT,Baar K

更新日期：2007-11-01 00:00:00

abstract：:The mechanical function and the collagen phenotype of the disc are complex, each a hybrid of elements of ligament and cartilage. In detail, the collagen properties are unique. Collagens I and II provide the bulk of the tissue fabric interwoven in opposing radial concentration gradients. From analysis of isolated cross...

journal_title：Biochemical Society transactions

authors： Eyre DR,Matsui Y,Wu JJ

更新日期：2002-11-01 00:00:00

abstract：:The PDE4 (phosphodiesterase-4) enzyme family consists of a distinct array of N-terminal splice variant isoforms arising from four subfamily genes (4A, 4B, 4C and 4D). These all hydrolyse specifically the intracellular second messenger cAMP. Although identical in catalytic function, each isoform appears to serve a non-...

journal_title：Biochemical Society transactions

authors： Lynch MJ,Baillie GS,Houslay MD

更新日期：2007-11-01 00:00:00

abstract：:Multiple cellular proteins have been identified as participating in Toll/interleukin-1 receptor-mediated inflammatory gene expression. The continuing isolation of novel components, based on sequence similarities, protein-protein interactions and protein purification, suggests that many elements of this signalling netw...

journal_title：Biochemical Society transactions

authors： Kiss-Toth E,Wyllie DH,Holland K,Marsden L,Jozsa V,Oxley KM,Polgar T,Qwarnstrom EE,Dower SK

更新日期：2005-12-01 00:00:00

abstract：:After years of setbacks, the perspective of neuroprotective stroke therapy has revived in light of recent study results. We outline in this review how a neuroprotective candidate drug should be developed, beginning with a thorough preclinical evaluation according to the STAIR (Stroke Therapy Academic Industry Roundtab...

journal_title：Biochemical Society transactions

authors： Schäbitz WR,Fisher M

更新日期：2006-12-01 00:00:00

abstract：:Inflammation or inflammatory cytokines and oxidative stress have often been associated, and thiol antioxidants, particularly glutathione, have often been seen as possible anti-inflammatory mediators. However, whereas several cytokine inhibitors have been approved for drug use in chronic inflammatory diseases, this has...

journal_title：Biochemical Society transactions

authors： Coppo L,Ghezzi P

更新日期：2011-10-01 00:00:00

abstract：:Despite decades of research, many aspects of the biology of Mycobacterium tuberculosis remain unclear, and this is reflected in the antiquated tools available to treat and prevent tuberculosis and consequently this disease remains a serious public health problem. Important discoveries linking the metabolism of M. tube...

journal_title：Biochemical Society transactions

authors： Beste DJ,McFadden J

更新日期：2010-10-01 00:00:00

abstract：:Genes encoding an alpha-oxygenase, in Nicotiana tabacum and Arabidopsis thaliana, have been recently isolated. However, the reaction mechanism of the enzyme has not so far been elucidated. In this study, a cDNA encoding the fatty acid alpha-oxygenase gene in rice plants was isolated. The deduced amino acid sequence sh...

journal_title：Biochemical Society transactions

authors： Koeduka T,Matsui K,Akakabe Y,Kajiwara T

更新日期：2000-12-01 00:00:00

abstract：:In order to achieve greater selectivity in drug discovery, researchers in both academia and industry are targeting cell regulatory systems. This often involves targeting the protein-protein interactions of regulatory multiprotein assemblies. Protein-protein interfaces are widely recognized to be challenging targets as...

journal_title：Biochemical Society transactions

authors： Abdel-Rahman N,Martinez-Arias A,Blundell TL

更新日期：2011-10-01 00:00:00

abstract：:Pancreatic cancer is the fourth most common cause of death from cancer in the world and the sixth in Europe. Pancreatic cancer is more frequent in males than females. Worldwide, following diagnosis of pancreatic cancer, <2% of patients survive for 5 years, 8% survive for 2 years and <50% survive for only approx. 3 mon...

journal_title：Biochemical Society transactions

authors： Szajda SD,Waszkiewicz N,Chojnowska S,Zwierz K

更新日期：2011-01-01 00:00:00

abstract：:The serum- and glucocorticoid-inducible kinase SGK1 is an ubiquitously expressed kinase with the ability to regulate a variety of transport systems. Recent observations point to a role of SGK1 in the regulation of diverse physiological functions such as epithelial transport and cardiac and neuronal excitability. At le...

journal_title：Biochemical Society transactions

authors： Lang F,Vallon V,Grahammer F,Palmada M,Böhmer C

更新日期：2005-02-01 00:00:00

abstract：:cAMP is an essential signalling molecule whose concentration in cells is regulated by a wide range of hormones. A large number of diseases, including cancer and asthma, are linked to improper regulation of the cAMP signalling system, and manipulation of cAMP levels by pharmaceutical agents has proven therapeutic benef...

journal_title：Biochemical Society transactions

authors： Yarwood SJ

更新日期：2005-12-01 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：:Regulation of protein synthesis is an important aspect of growth control. RNA polymerase (pol) III plays a key role in this process by catalysing production of tRNA and 5 S rRNA. Growth factors trigger a rapid increase in pol III activity and this is essential for cell proliferation. The transcription factor TFIIIB pl...

journal_title：Biochemical Society transactions

authors： Mauger E,Scott PH

更新日期：2004-12-01 00:00:00