The anaerobic biosynthesis of vitamin B12.

abstract：:The axial ligand of the catalytic mononuclear T1 copper site (Met(502)) of the CotA laccase was replaced by a leucine or phenylalanine residue to increase the redox potential of the enzyme. These mutations led to an increase in the redox potential by approx. 100 mV relative to the wild-type enzyme but the catalytic co...

journal_title：Biochemical Society transactions

authors： Melo EP,Fernandes AT,Durão P,Martins LO

更新日期：2007-12-01 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：:Disrupted in schizophrenia 1 (DISC1) is emerging in the eyes of many as the most promising candidate of all the schizophrenia risk genes. This viewpoint is derived from the combination of genetic, clinical, imaging and rapidly advancing cell biology data around this gene. All of these areas have been reviewed extensiv...

journal_title：Biochemical Society transactions

authors： Brandon NJ

更新日期：2007-11-01 00:00:00

abstract：:Delineating the molecular pathways underlying seizure-induced neuronal death may yield novel strategies for brain protection against prolonged or repetitive seizures. Glutamate-mediated excitotoxicity and necrosis is a primary contributing mechanism but seizures also activate programmed (apoptotic) cell death pathways...

journal_title：Biochemical Society transactions

authors： Henshall DC

更新日期：2007-04-01 00:00:00

abstract：:CD4+ effector T cells effectuate T cell immune responses, producing cytokines to orchestrate the nature and type of immune responses. The non-receptor tyrosine kinase IL-2 inducible T cell kinase (ITK), a mediator of T cell Receptor signaling, plays a critical role in tuning the development of these effector cells. In...

journal_title：Biochemical Society transactions

authors： Elmore JP,McGee MC,Nidetz NF,Anannya O,Huang W,August A

更新日期：2020-02-28 00:00:00

abstract：:HD (Huntington's disease) is a late onset heritable neurodegenerative disorder that is characterized by neuronal dysfunction and death, particularly in the cerebral cortex and medium spiny neurons of the striatum. This is followed by progressive chorea, dementia and emotional dysfunction, eventually resulting in death...

journal_title：Biochemical Society transactions

authors： Bithell A,Johnson R,Buckley NJ

更新日期：2009-12-01 00:00:00

abstract：:Nitric oxide is an intermediate of denitrification, and is one of the radical species deployed by macrophages against invading pathogens, therefore bacterial responses to NO are of considerable importance. The Escherichia coli flavorubredoxin and its associated oxidoreductase reduce NO to nitrous oxide under anaerobic...

journal_title：Biochemical Society transactions

authors： Tucker N,D'autréaux B,Spiro S,Dixon R

更新日期：2005-02-01 00:00:00

abstract：:Single-molecule fluorescence methods, particularly single-molecule FRET (fluorescence resonance energy transfer), have provided novel insights into the structure, interactions and dynamics of biological systems. ALEX (alternating-laser excitation) spectroscopy is a new method that extends single-molecule FRET by provi...

journal_title：Biochemical Society transactions

authors： Santoso Y,Hwang LC,Le Reste L,Kapanidis AN

更新日期：2008-08-01 00:00:00

abstract：:There is strong evidence for an important role for increased COX (cyclo-oxygenase)-2 expression and PG (prostaglandin) E2 production in colorectal tumorigenesis. PGE(2) acts through four E-prostanoid receptors (EP1-4). COX-2 has therefore become a target for the potential chemoprevention and therapy of colorectal canc...

journal_title：Biochemical Society transactions

authors： Chell S,Patsos HA,Qualtrough D,H-Zadeh AM,Hicks DJ,Kaidi A,Witherden IR,Williams AC,Paraskeva C

更新日期：2005-08-01 00:00:00

abstract：:Sister-chromatid cohesion, thought to be primarily mediated by the cohesin complex, is essential for chromosome segregation. The forces holding the two sisters resist the tendency of microtubules to prematurely pull sister DNAs apart and thereby prevent random segregation of the genome during mitosis, and consequent a...

journal_title：Biochemical Society transactions

authors： Oliveira RA,Nasmyth K

更新日期：2010-12-01 00:00:00

abstract：:Seeds of rape (Brassica napus L.) were germinated at various NaCl concentrations up to 200 mM. Germinating levels, seedling growth, triacylglycerol mobilization and lipase activity were investigated. High salt concentrations resulted in retardation of seed germination. Seedling growth as measured by radicle length was...

journal_title：Biochemical Society transactions

authors： Ben Miled DD,Zarrouk M,Chérif A

更新日期：2000-12-01 00:00:00

abstract：:JNK (c-Jun N-terminal kinase) is a member of the MAPK (mitogen-activated protein kinase) family that regulates a range of biological processes implicated in tumorigenesis and neurodegenerative disorders. For example, genetic studies have demonstrated that the removal of specific Jnk genes can reduce neuronal death ass...

journal_title：Biochemical Society transactions

authors： Davies C,Tournier C

更新日期：2012-02-01 00:00:00

abstract：:AS (alternative splicing) and its role in disease, especially cancer, has come to forefront in research over the last few years. Alterations in the ratio of splice variants have been widely observed in cancer. Splice variants of cancer-associated genes have functions that can alter cellular phenotype, ultimately alter...

journal_title：Biochemical Society transactions

authors： Hagen RM,Ladomery MR

更新日期：2012-08-01 00:00:00

abstract：:CoA (coenzyme A) is a ubiquitous and essential cofactor that acts as an acyl group carrier in biochemical reactions. Apart from participating in numerous metabolic pathways as substrates and intermediates, CoA and a number of its thioester derivatives, such as acetyl-CoA, can also directly regulate the activity of pro...

journal_title：Biochemical Society transactions

authors： Tsuchiya Y,Pham U,Gout I

更新日期：2014-08-01 00:00:00

abstract：:The spliceosome is a macromolecular machine that carries out the excision of introns from eukaryotic pre-mRNAs and splicing together of exons. Four large RNA-protein complexes, called the U1, U2, U4/U6 and U5 small nuclear ribonucleoprotein particles (snRNPs), and some non-snRNP proteins assemble around three short co...

journal_title：Biochemical Society transactions

authors： Nagai K,Muto Y,Pomeranz Krummel DA,Kambach C,Ignjatovic T,Walke S,Kuglstatter A

更新日期：2001-05-01 00:00:00

abstract：:Biochemical features of renin have been studied. Determination of the amino acid sequence and catalytically essential groups in the active sites of mouse submandibular gland revealed the similarity of renin with acid proteases. Yet stringent substrate specificity, neutral pH optimum of its enzyme activity and the uniq...

journal_title：Biochemical Society transactions

authors： Inagami T,Misono KS,Chang JJ,Takii Y

更新日期：1984-12-01 00:00:00

abstract：:In plant and metazoan, Polycomb Group (PcG) proteins play key roles in regulating developmental processes by repression of gene expression. PcG proteins function as multi-protein complexes; among them the best characterized ones are Polycomb Repressive Complex 1 (PRC1) and PRC2. PRC2 catalyzes histone H3 lysine 27 tri...

journal_title：Biochemical Society transactions

authors： Wang Q,Shen WH

更新日期：2018-08-20 00:00:00

abstract：:The 26S proteasome is a non-lysosomal protease in the cytosol and nucleus of eukaryotic cells. Its main function is to mediate ubiquitin-dependent proteolysis. The 26S proteasome is a multimeric complex composed by the 20S proteasome CP (core particle) and the 19S RPs (regulatory particles). Although the atomic struct...

journal_title：Biochemical Society transactions

authors： Matias AC,Ramos PC,Dohmen RJ

更新日期：2010-02-01 00:00:00

abstract：:We recently showed that transport of ergosterol from the ER (endoplasmic reticulum) to the sterol-enriched PM (plasma membrane) in yeast occurs by a non-vesicular (Sec18p-independent) mechanism that results in the equilibration of sterol pools in the two organelles [Baumann, Sullivan, Ohvo-Rekilä, Simonot, Pottekat, K...

journal_title：Biochemical Society transactions

authors： Sullivan DP,Ohvo-Rekilä H,Baumann NA,Beh CT,Menon AK

更新日期：2006-06-01 00:00:00

abstract：:Solid-state nuclear magnetic resonance (ssNMR) is an indispensable tool for elucidating the structure and dynamics of insoluble and non-crystalline biomolecules. The recent advances in the sensitivity-enhancing technique magic-angle spinning dynamic nuclear polarization (MAS-DNP) have substantially expanded the territ...

journal_title：Biochemical Society transactions

authors： Chakraborty A,Deligey F,Quach J,Mentink-Vigier F,Wang P,Wang T

更新日期：2020-06-30 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：:The immense power of the immune system is harnessed in healthy individuals by a range of negative regulatory signals and checkpoints. Manipulating these checkpoints through inhibition has resulted in striking immune-mediated clearance of otherwise untreatable tumours and metastases; unfortunately, not all patients res...

journal_title：Biochemical Society transactions

authors： Watson HA,Wehenkel S,Matthews J,Ager A

更新日期：2016-04-15 00:00:00

abstract：:Abnormal protein aggregation and intracellular or extracellular accumulation of misfolded and aggregated proteins are key events in the pathogenesis of different neurodegenerative diseases. Furthermore, endoplasmic reticulum stress and impairment of the ubiquitin-proteasome system probably contribute to neurodegenerat...

journal_title：Biochemical Society transactions

authors： Haapasalo A,Viswanathan J,Bertram L,Soininen H,Tanzi RE,Hiltunen M

更新日期：2010-02-01 00:00:00

abstract：:The avascular nature of the human intervertebral disc is thought to reduce the ability of resident disc cells to maintain their extracellular matrix, rendering the tissue susceptible to degeneration. It has also been suggested that the lack of a blood supply may result in disc cell death via nutrient deprivation. Ther...

journal_title：Biochemical Society transactions

authors： Johnson WE,Roberts S

更新日期：2007-08-01 00:00:00

abstract：:We study how mechanical forces integrate spatially and temporally with regulatory signals at the leading edge of migrating cells. To probe the dynamics of this system, we developed quantitative fluorescent speckle microscopy, which maps out actin cytoskeleton transport, assembly and disassembly with high spatial resol...

journal_title：Biochemical Society transactions

authors： Danuser G

更新日期：2005-12-01 00:00:00

abstract：:Understanding how cognitive processes including learning, memory, decision making and ideation are encoded by the genome is a key question in biology. Identification of sets of genes underlying human mental disorders is a path towards this objective. Schizophrenia is a common disease with cognitive symptoms, high heri...

journal_title：Biochemical Society transactions

authors： Tam GW,van de Lagemaat LN,Redon R,Strathdee KE,Croning MD,Malloy MP,Muir WJ,Pickard BS,Deary IJ,Blackwood DH,Carter NP,Grant SG

更新日期：2010-04-01 00:00:00

abstract：:Although relatively few G-protein-coupled receptors are Class C, in recent years, this small family of receptors has become a focal point for the discovery of new and exciting allosteric modulators. The mGlu (metabotropic glutamate) receptors are illustrative in the discovery of both positive and/or negative allosteri...

journal_title：Biochemical Society transactions

authors： Johnson MP,Nisenbaum ES,Large TH,Emkey R,Baez M,Kingston AE

更新日期：2004-11-01 00:00:00

abstract：:Site-specific recombinases are enzymes that promote precise rearrangements of DNA sequences. They do this by cutting and rejoining the DNA strands at specific positions within a pair of target sites recognized and bound by the recombinase. One group of these enzymes, the serine recombinases, initiates strand exchange ...

journal_title：Biochemical Society transactions

authors： Marshall Stark W,Boocock MR,Olorunniji FJ,Rowland SJ

更新日期：2011-04-01 00:00:00

abstract：:Nicotinic ACh (acetylcholine) and 5-HT3 (5-hydroxytryptamine type-3) receptors are cation-selective ion channels of the Cys-loop transmitter-gated ion channel superfamily. Numerous lines of evidence indicate that the channel lining domain of such receptors is formed by the alpha-helical M2 domain (second transmembrane...

journal_title：Biochemical Society transactions

authors： Peters JA,Carland JE,Cooper MA,Livesey MR,Deeb TZ,Hales TG,Lambert JJ

更新日期：2006-11-01 00:00:00

abstract：:NRs (nuclear receptors) regulate the expression of specific gene networks in target cells by recruiting cofactor complexes involved in chromatin remodelling and in the assembly of transcription complexes. The importance of activating gene expression, in metabolic tissues, is well established, but the contribution of t...

journal_title：Biochemical Society transactions

authors： Parker MG,Christian M,White R

更新日期：2006-12-01 00:00:00