Abstract:
:Many plant viral RNAs lack the 5'-cap structure that is required on all host mRNAs for interacting with essential translation initiation factors. Instead, uncapped viral RNAs take over the host translation machinery by harbouring sequences that functionally replace the 5'-cap. Recent reports reveal at least eight different classes of CITE (cap-independent translation element) located in the 3'-UTRs (untranslated regions) of various viruses. We describe how the structure and behaviour of each class of element differs from the other classes, suggesting that they recruit translation factors and, ultimately, the ribosome by diverse mechanisms. These results greatly expand our understanding of ways in which mRNAs can recruit ribosomes, and they provide insight into the regulation of virus gene expression.
journal_name
Biochem Soc Transjournal_title
Biochemical Society transactionsauthors
Miller WA,Wang Z,Treder Kdoi
10.1042/BST0351629subject
Has Abstractpub_date
2007-12-01 00:00:00pages
1629-33issue
Pt 6eissn
0300-5127issn
1470-8752pii
BST0351629journal_volume
35pub_type
杂志文章,评审abstract::There are eight members of the phosphoinositide family of phospholipids in eukaryotes; PI, PI3P, PI4P, PI5P, PI(4,5)P2, PI(3,4)P2, PI(3,5)P2 and PI(3,4,5)P3. Receptor activation of Class I PI3Ks stimulates the phosphorylation of PI(4,5)P2 to form PI(3,4,5)P3. PI(3,4,5)P3 is an important messenger molecule that is part...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20150248
更新日期:2016-02-01 00:00:00
abstract::The central role of VEGF (vascular endothelial growth factor A) in angiogenesis is dependent upon its ability to co-ordinately regulate multiple endothelial functions. The multifunctionality of VEGF at the cellular level results from its ability to initiate a diverse, complex and integrated network of signalling pathw...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/bst0311171
更新日期:2003-12-01 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
pub_type: 杂志文章,评审
doi:10.1042/bst0320240
更新日期:2004-04-01 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
pub_type: 杂志文章,评审
doi:10.1042/BST0390184
更新日期:2011-01-01 00:00:00
abstract::Allostery is a biological phenomenon of critical importance in metabolic regulation and cell signalling. The fundamental premise of classical models that describe allostery is that structure mediates 'action at a distance'. Recently, this paradigm has been challenged by the enrichment of IDPs (intrinsically disordered...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20120163
更新日期:2012-10-01 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
pub_type: 杂志文章
doi:10.1042/BST0361129
更新日期:2008-12-01 00:00:00
abstract::Intellectual disability (ID) affects at least 1% of the population, and typically presents in the first few years of life. ID is characterized by impairments in cognition and adaptive behavior and is often accompanied by further delays in language and motor skills, as seen in many neurodevelopmental disorders (NDD). R...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20200109
更新日期:2020-06-30 00:00:00
abstract::Coagulation proteases are involved in a highly orchestrated proteolytic cascade which is essential for haemostasis and blood clotting. In particular, the initiator of the coagulation cascade, Factor VIIa, binds to its cofactor, tissue factor, and its substrate, Factor X, via exosite interactions to form a ternary cata...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0350555
更新日期:2007-06-01 00:00:00
abstract::Bloom's syndrome (BS) is a rare autosomal recessive disorder characterized by genomic instability and cancer predisposition. The underlying genetic defect is mutation of the BLM gene, producing deficiency in the RecQ helicase BLM (Bloom's syndrome protein). The present article begins by introducing BLM and its binding...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0370553
更新日期:2009-06-01 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
pub_type: 杂志文章
doi:10.1042/BST0380029
更新日期:2010-02-01 00:00:00
abstract::Muscles are responsible for generating the forces required for the movement of multicellular organisms. Microscopically, these forces arise as a consequence of motor proteins (myosin) pulling and sliding along actin filaments. Current knowledge states that the molecular forces between actin and myosin are linear in na...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0320694
更新日期:2004-11-01 00:00:00
abstract::Functional cardiomyocytes can now be derived routinely from hPSCs (human pluripotent stem cells), which collectively include embryonic and induced pluripotent stem cells. This technology presents new opportunities to develop pharmacologically relevant in vitro screens to detect cardiotoxicity, with a view to improving...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0381037
更新日期:2010-08-01 00:00:00
abstract::RNase A (1 mM) was incubated with glucose (0.4 M) at 37 degrees C for up to 14 days in phosphate buffer (0.2 M, pH 7.4), digested with trypsin and analysed by LC-MS. The major sites of fructoselysine formation were Lys(1), Lys(7), Lys(37) and Lys(41). Three of these sites (Lys(7), Lys(37) and Lys(41)) were also the ma...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/bst0311426
更新日期:2003-12-01 00:00:00
abstract::c-Type cytochromes are characterized by covalent attachment of haem to protein through thioether bonds between the vinyl groups of the haem and the thiols of a Cys-Xaa-Xaa-Cys-His motif. Proteins of this type play crucial roles in the biochemistry of the nitrogen cycle. Many Gram-negative bacteria use the Ccm (cytochr...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0340091
更新日期:2006-02-01 00:00:00
abstract::Glucose 6-phosphate is an intermediate of pathways of glucose utilization and production as well as a regulator of enzyme activity and gene expression. Studies on the latter functions are in part based on measurement of the glucose 6-phosphate content in a whole-cell extract. Several studies have suggested that there ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/
更新日期:2002-04-01 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
pub_type: 杂志文章,评审
doi:10.1042/BST20120026
更新日期:2012-08-01 00:00:00
abstract::Autophagy is an evolutionarily conserved lysosome-mediated degradation and recycling process, which functions in cellular homeostasis and stress adaptation. The process is highly dynamic and involves autophagosome synthesis, cargo recognition and transport, autophagosome-lysosome fusion, and cargo degradation. The mul...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20170102
更新日期:2018-02-19 00:00:00
abstract::Lysophosphatidic acid (LPA; 1-acyl-3-phosphoglycerol) exerts its biological activity through both extracellular and intracellular targets. Receptor targets include the cell-surface G-protein-coupled receptors LPA(1-4) and the nuclear PPAR-gamma (peroxisome-proliferator-activated receptor gamma). Enzyme targets include...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20051366
更新日期:2005-12-01 00:00:00
abstract::MUPs (major urinary proteins) play an important role in chemical signalling in rodents and possibly other animals. In the house mouse (Mus musculus domesticus) MUPs in urine and other bodily fluids trigger a range of behavioural responses that are only partially understood. There are at least 21 Mup genes in the C57BL...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20140082
更新日期:2014-08-01 00:00:00
abstract::PTB (polypyrimidine tract-binding protein) is an abundant and widely expressed RNA-binding protein with four RRM (RNA recognition motif) domains. PTB is involved in numerous post-transcriptional steps in gene expression in both the nucleus and cytoplasm, but has been best characterized as a regulatory repressor of som...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST20120044
更新日期:2012-08-01 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
pub_type: 杂志文章
doi:10.1042/BST0330181
更新日期:2005-02-01 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
pub_type: 杂志文章,评审
doi:10.1042/BST0390128
更新日期:2011-01-01 00:00:00
abstract::The evolution of proteins is inseparably linked to their function. Because most biological processes involve a number of different proteins, it may become impossible to study the evolutionary properties of proteins in isolation. In the present article, we show how simple mechanistic models of biological processes can ...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0370762
更新日期:2009-08-01 00:00:00
abstract::Isolation and purification of the [NiFe] hydrogenase of Desulfovibrio vulgaris Miyazaki F under aerobic conditions leads to a mixture of two states, Ni-A (unready) and Ni-B (ready). The two states are distinguished by different activation times and different EPR spectra. HYSCORE and ENDOR data and DFT calculations sho...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0330007
更新日期:2005-02-01 00:00:00
abstract::Animal venoms are recognised as unique biological systems in which to study molecular evolution. Venom use has evolved numerous times among the insects, and insects today use venom to capture prey, defend themselves from predators, or to subdue and modulate host responses during parasitism. However, little is known ab...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST20190820
更新日期:2020-08-28 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
pub_type: 杂志文章
doi:10.1042/bst0320088
更新日期:2004-02-01 00:00:00
abstract::Two decades ago, patients lacking circulating serum ceruloplasmin (Cp) presented with neurodegeneration associated with brain iron accumulation. These patients, with mutations in the MCO (multi-copper oxidase), Cp, revealed an essential role for Cp in iron homoeostasis. The patients were diagnosed in adulthood with CN...
journal_title:Biochemical Society transactions
pub_type: 杂志文章,评审
doi:10.1042/BST0361277
更新日期:2008-12-01 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
pub_type: 杂志文章
doi:10.1042/BST0341103
更新日期:2006-12-01 00:00:00
abstract::The availability of entire genome sequences and the wealth of literature on gene regulation have enabled researchers to model an organism's transcriptional regulation system in the form of a network. In such a network, TFs (transcription factors) and TGs (target genes) are represented as nodes and regulatory interacti...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0381155
更新日期:2010-10-01 00:00:00
abstract::Within the SulfoSYS (Sulfolobus Systems Biology) project, the effect of temperature on a metabolic network is investigated at the systems level. Sulfolobus solfataricus utilizes an unusual branched ED (Entner-Doudoroff) pathway for sugar degradation that is promiscuous for glucose and galactose. In the course of metab...
journal_title:Biochemical Society transactions
pub_type: 杂志文章
doi:10.1042/BST0390077
更新日期:2011-01-01 00:00:00