abstract：:Recent years have seen a rapid increase in structural information on proteins implicated in bacterial pathogenesis. The different modes by which bacteria establish contact with their host tissues are exemplified by the structures of bacterial adhesins in complex with their cognate host receptor. A more detailed struct...

journal_title：Current opinion in structural biology

authors： Remaut H,Waksman G

更新日期：2004-04-01 00:00:00

abstract：:Given the increasing interest in protein-protein interactions, the prediction of these interactions from sequence and structural information has become a booming activity. CAPRI, the community-wide experiment for assessing blind predictions of protein-protein interactions, is playing an important role in fostering pro...

journal_title：Current opinion in structural biology

authors： Wodak SJ,Méndez R

更新日期：2004-04-01 00:00:00

abstract：:Ribosomes translate genetic information encoded by mRNAs into protein chains with high fidelity. Truncated mRNAs lacking a stop codon will cause the synthesis of incomplete peptide chains and stall translating ribosomes. In bacteria, a ribonucleoprotein complex composed of tmRNA, a molecule that combines the functions...

journal_title：Current opinion in structural biology

authors： Haebel PW,Gutmann S,Ban N

更新日期：2004-02-01 00:00:00

abstract：:The radical intermediates generated during the catalytic cycles of adenosylcobalamin-dependent enzymes occur in pairs. The positions of radicals residing on the cofactor, substrate or protein, relative to the position of the low-spin Co(2+) from the cob(II)alamin intermediate, can be extracted from electron paramagnet...

journal_title：Current opinion in structural biology

authors： Reed GH,Mansoorabadi SO

更新日期：2003-12-01 00:00:00

abstract：:Few biological macromolecular complexes exhibit the combination of massive size and hierarchical, symmetrical architecture embodied in icosahedral viruses. X-ray crystallography, electron cryomicroscopy and small-angle X-ray scattering provide complementary approaches to studying these remarkable structures. Through a...

journal_title：Current opinion in structural biology

authors： Lee KK,Johnson JE

更新日期：2003-10-01 00:00:00

abstract：:Carbohydrate microarray technologies are new developments at the frontiers of glycomics. Results of 'proof of concept' experiments with carbohydrate-binding proteins of the immune system - antibodies, selectins, a cytokine and a chemokine - and several plant lectins indicate that microarrays of carbohydrates (glycocon...

journal_title：Current opinion in structural biology

authors： Feizi T,Fazio F,Chai W,Wong CH

更新日期：2003-10-01 00:00:00

abstract：:The alpha helices of transmembrane proteins interact to form higher order structures. These interactions are frequently mediated by packing motifs (such as GxxxG) and polar residues. Recent structural data have revealed that small sidechains are able to both stabilize helical membrane proteins and allow conformational...

journal_title：Current opinion in structural biology

authors： Curran AR,Engelman DM

更新日期：2003-08-01 00:00:00

abstract：:The past decade has seen a revolution in our ability to engineer designer enzymes using genetic tools that mimic evolution on a laboratory timescale. Many excellent examples of directed evolution applied to a wide range of enzymes have clearly demonstrated its future role in adapting enzymes for use in the chemical in...

journal_title：Current opinion in structural biology

authors： Dalby PA

更新日期：2003-08-01 00:00:00

abstract：:RNA motifs are directed and ordered stacked arrays of non-Watson-Crick base pairs forming distinctive foldings of the phosphodiester backbones of the interacting RNA strands. They correspond to the 'loops' - hairpin, internal and junction - that intersperse the Watson-Crick two-dimensional helices as seen in two-dimen...

journal_title：Current opinion in structural biology

authors： Leontis NB,Westhof E

更新日期：2003-06-01 00:00:00

abstract：:Computational methods play an important role at all stages of the process of determining protein-protein interactions. They are used to predict potential interactions, to validate the results of high-throughput interaction screens and to analyze the protein networks inferred from interaction databases. ...

journal_title：Current opinion in structural biology

authors： Salwinski L,Eisenberg D

更新日期：2003-06-01 00:00:00

abstract：:NMR relaxation experiments of isotopically labeled proteins provide a wealth of information on reorientational global and local dynamics on nanosecond and subnanosecond timescales for folded and nonfolded proteins in solution. Recent methodological advances in the interpretation of relaxation data have led to a better...

journal_title：Current opinion in structural biology

authors： Brüschweiler R

更新日期：2003-04-01 00:00:00

abstract：:ATP-binding cassette (ABC)-type ATPases are chemo-mechanical engines for diverse biological pathways. ABC ATPase domains act not only in ABC transporters but also in DNA mismatch, nucleotide excision and double-strand break repair enzymes, as well as in chromosome segregation. Atomic-resolution crystal structures sugg...

journal_title：Current opinion in structural biology

authors： Hopfner KP,Tainer JA

更新日期：2003-04-01 00:00:00

abstract：:Significant progress has been made over the past several years on structural studies of the eukaryotic translation initiation factors that facilitate the assembly of a translation-competent ribosome at the initiation codon of an mRNA. These structural studies have revealed the repeated use of a set of common structura...

journal_title：Current opinion in structural biology

authors： Sonenberg N,Dever TE

更新日期：2003-02-01 00:00:00

abstract：:For many protein families, such as serine proteinases or serine proteinase inhibitors, the family assignment predicts reactivity only in general terms. Both detailed specificity and quantitative reactivity are lacking. We believe that, for many such protein families, algorithms can be devised by defining the subset of...

journal_title：Current opinion in structural biology

authors： Laskowski M Jr,Qasim MA,Yi Z

更新日期：2003-02-01 00:00:00

abstract：:ATP-binding cassette (ABC) transporters are central to many physiological processes, including the uptake of nutrients, the non-classical secretion of signaling molecules and toxins, multidrug resistance and the development of human disease. As one might expect from this spectrum of translocation events, these ubiquit...

journal_title：Current opinion in structural biology

authors： Schmitt L,Tampé R

更新日期：2002-12-01 00:00:00

abstract：:Recent studies from several laboratories have provided evidence that cell surface complex carbohydrates play key roles in the regulation of developmentally relevant signal transduction events. The demonstration that Fringe, a known modifier of Notch function, is a fucose-specific N-acetylglucosaminyltransferase provid...

journal_title：Current opinion in structural biology

authors： Haltiwanger RS

更新日期：2002-10-01 00:00:00

abstract：:Magic-angle spinning solid-state NMR experiments are well suited to investigating the structures and mechanisms of important proteins that are inaccessible to X-ray crystallography and solution NMR spectroscopy, including membrane proteins and disease-related protein aggregates. Good progress has been made in the deve...

journal_title：Current opinion in structural biology

authors： Thompson LK

更新日期：2002-10-01 00:00:00

abstract：:The first high-resolution structure of a P-type ATPase, that of the Ca(2+)-ATPase of skeletal muscle sarcoplasmic reticulum, was published in 2000. This structure has provided many clues to how the Ca(2+)-ATPase might work, but no complete answers. The Ca(2+)-ATPase structure reveals no clear pathway from the cytoplas...

journal_title：Current opinion in structural biology

authors： Lee AG

更新日期：2002-08-01 00:00:00

abstract：:The base pair stack within double helical DNA provides an effective medium for charge transport. The DNA pi-stack mediates oxidative DNA damage over long molecular distances in a reaction that is exquisitely sensitive to the sequence-dependent conformation and dynamics of DNA. A mixture of tunneling and hopping mechan...

journal_title：Current opinion in structural biology

authors： Boon EM,Barton JK

更新日期：2002-06-01 00:00:00

abstract：:Complementary developments in comparative genomics, protein structure determination and in-depth comparison of protein sequences and structures have provided a better understanding of the prevailing trends in the emergence and diversification of protein domains. The investigation of deep relationships among different ...

journal_title：Current opinion in structural biology

authors： Aravind L,Mazumder R,Vasudevan S,Koonin EV

更新日期：2002-06-01 00:00:00

abstract：:Recent developments in experimental and computational aspects of NMR spectroscopy have had a significant impact on the accuracy and speed of macromolecular structure determination in solution, particularly with regard to systems of high complexity (such as protein complexes). These include experiments designed to prov...

journal_title：Current opinion in structural biology

authors： Clore GM,Schwieters CD

更新日期：2002-04-01 00:00:00

abstract：:A coherent view of the structure and function of DNA polymerase processivity factors (sliding clamps and clamp loaders) is emerging from recent structural studies. Crystal structures of sliding clamps from the T4 and RB69 bacteriophages, and from an archaebacterium expand the gallery of ring-shaped processivity factor...

journal_title：Current opinion in structural biology

authors： Jeruzalmi D,O'Donnell M,Kuriyan J

更新日期：2002-04-01 00:00:00

abstract：:There are now numerous examples of proteins that are unstructured or only partially structured under physiological conditions and yet are nevertheless functional. Such proteins are especially prevalent in eukaryotes. In many cases, intrinsically disordered proteins adopt folded structures upon binding to their biologi...

journal_title：Current opinion in structural biology

authors： Dyson HJ,Wright PE

更新日期：2002-02-01 00:00:00

abstract：:A novel ligand-binding domain, named the 'ACT domain', was recently identified by a PSI-BLAST search. The archetypical ACT domain is the C-terminal regulatory domain of 3-phosphoglycerate dehydrogenase (3PGDH), which folds with a ferredoxin-like betaalphabetabetaalphabeta topology. A pair of ACT domains form an eight-...

journal_title：Current opinion in structural biology

authors： Chipman DM,Shaanan B

更新日期：2001-12-01 00:00:00

abstract：:Recently, new methods for determining time-evolving structures using infrared analogs of NMR spectroscopy have been introduced that have outstanding potential in structural biology. Already, within the past two years, structures of dipeptides, tripeptides and pentapeptides have been determined on much faster timescale...

journal_title：Current opinion in structural biology

authors： Zanni MT,Hochstrasser RM

更新日期：2001-10-01 00:00:00

abstract：:The past year has seen some major advances in the area of carbohydrate synthesis using chemical methods. Progress in all areas of synthetic methodology, including new protecting groups and coupling methods, has been reported. A number of complex carbohydrate structures have been prepared using known, as well as new, m...

journal_title：Current opinion in structural biology

authors： Bartolozzi A,Seeberger PH

更新日期：2001-10-01 00:00:00

abstract：:TolC and its many homologues comprise an alpha-helical transperiplasmic tunnel embedded in the bacterial outer membrane by a contiguous beta-barrel channel, providing a large exit duct for diverse substrates. The 'channel-tunnel' is closed at its periplasmic entrance, but can be opened by an 'iris-like' mechanism when...

journal_title：Current opinion in structural biology

authors： Koronakis V,Andersen C,Hughes C

更新日期：2001-08-01 00:00:00

abstract：:For various reasons, it seems sensible to redesign or design proteins from the inside out. Past approaches in this field have involved iterations of mutagenesis and characterisation to 'evolve' designs. Increasingly, combinatorial approaches are being taken to select 'fit' sequences from libraries of variant proteins....

journal_title：Current opinion in structural biology

authors： Woolfson DN

更新日期：2001-08-01 00:00:00

abstract：:Recently, major advances have been made toward increasing our understanding of small ribozyme structure and function. The first general acid-base catalytic mechanism for a ribozyme has been defined. Shifted nucleotide pK(a) values have been found to be surprisingly frequent structural elements. Finally, the dynamic na...

journal_title：Current opinion in structural biology

authors： Butcher SE

更新日期：2001-06-01 00:00:00

abstract：:The most important advances in the field of genome annotation over the past two years involve the use of cDNA sequences, protein structures and gene expression data to predict genes. These types of information not only improve gene identification, but they also give insights into variation in gene structure and functi...

journal_title：Current opinion in structural biology

authors： Gaasterland T,Oprea M

更新日期：2001-06-01 00:00:00

abstract：:A selection of World Wide Web sites relevant to papers published in this issue of Current Opinion in Structural Biology. ...

journal_title：Current opinion in structural biology

authors： Lakey JH,Reddy BV,Murray-Rust J

更新日期：2001-04-01 00:00:00

abstract：:Ising-like models have been remarkably successful in reproducing all the experimental data available on the equilibrium and kinetics of secondary structure formation in short peptides. Over the past two years, very similar models have been used to predict the folding of complete proteins, with encouraging results. Alt...

journal_title：Current opinion in structural biology

authors： Muñoz V

更新日期：2001-04-01 00:00:00

abstract：:Zinc finger proteins are among the most abundant proteins in eukaryotic genomes. Their functions are extraordinarily diverse and include DNA recognition, RNA packaging, transcriptional activation, regulation of apoptosis, protein folding and assembly, and lipid binding. Zinc finger structures are as diverse as their f...

journal_title：Current opinion in structural biology

authors： Laity JH,Lee BM,Wright PE

更新日期：2001-02-01 00:00:00

abstract：:Biological macromolecules have evolved over billions of years to function inside cells, so it is not surprising that researchers studying the properties of such molecules, either in extracts or in purified form, take care to control factors that reflect the intracellular environment, such as pH, ionic strength and com...

journal_title：Current opinion in structural biology

authors： Ellis RJ

更新日期：2001-02-01 00:00:00

abstract：:The past twelve months have seen a renewal of interest in the therapeutic potential of members of the tumour necrosis factor receptor family and their cytokine ligands. This biomedical interest has spawned a number of structural studies, which have significantly deepened our understanding of the molecular basis for th...

journal_title：Current opinion in structural biology

authors： Jones EY

更新日期：2000-12-01 00:00:00

abstract：:An important goal of structural genomics is to complete the structural analysis of all the enzymes in metabolic pathways and to understand the structural similarities and differences. A preliminary glimpse of this type of analysis was achieved before structural genomics efforts with the glycolytic pathway and efforts ...

journal_title：Current opinion in structural biology

authors： Erlandsen H,Abola EE,Stevens RC

更新日期：2000-12-01 00:00:00

abstract：:Rapid advances in the cloning and expression of glycosyltransferase genes, especially from bacteria, could open the way to overcoming difficulties in the mass production of oligosaccharides. The large-scale production of oligosaccharides using either glycosyltransferases isolated from engineered microorganisms or whol...

journal_title：Current opinion in structural biology

authors： Endo T,Koizumi S

更新日期：2000-10-01 00:00:00

abstract：:The utility of mass spectrometry for the analysis of proteins has grown enormously in the past decade. Significant advances in detection and ionization techniques are allowing questions about noncovalent assembly to be addressed by the direct observation of gas phase complexes, their assembly in real time and their di...

journal_title：Current opinion in structural biology

authors： Miranker AD

更新日期：2000-10-01 00:00:00

abstract：:Biology can teach the physical world of electronics, computing, materials science and manufacturing how to assemble complex functional devices and systems that operate at the molecular level. Our present capability to fabricate simple molecular tools, devices, materials and machines is primitive compared with the soph...

journal_title：Current opinion in structural biology

authors： Lowe CR

更新日期：2000-08-01 00:00:00

abstract：:Lipidic mesophases have been used to produce diffraction-quality crystals of several membrane proteins. The mechanism by which the method works is a mystery. The thrust is to continue to use it whilst deciphering the underlying mechanism and solving the second 'phase problem' in membrane protein crystallography. The m...

journal_title：Current opinion in structural biology

authors： Caffrey M

更新日期：2000-08-01 00:00:00