Abstract：
:The ISWI family of ATP-dependent chromatin remodelers regulates transcription of coding and noncoding RNA by mobilizing nucleosomes and controlling the length of linker DNA separating nucleosomes (spacing). Nucleosome movement is tightly coupled to the DNA translocation activity of the helicase domain in the catalytic subunit. There may be other domains besides the helicase domain needed to move DNA in and out of nucleosomes. The C terminus of the ISWI catalytic subunit with the conserved HAND, SANT, and SLIDE domains may be involved in nucleosome spacing. There are several models of how the C terminus may facilitate in ISWI remodeling such as regulating the activity of the helicase domain and causing the helicase domain to translocate more efficiently on DNA or to enhance its selectivity for nucleosomes. Another possibility is that domains like SLIDE promote linker DNA entering into nucleosomes in a coordinated manner with the helicase domain.
journal_name
Curr Opin Struct Bioljournal_title
Current opinion in structural biologyauthors
Bartholomew Bdoi
10.1016/j.sbi.2014.01.010subject
Has Abstractpub_date
2014-02-01 00:00:00pages
150-5eissn
0959-440Xissn
1879-033Xpii
S0959-440X(14)00011-6journal_volume
24pub_type
杂志文章,评审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
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(00)00172-x
更新日期：2001-02-01 00:00:00
abstract：:The X-ray structures of two prokaryotic pentameric ligand-gated ion channels have recently provided detailed insight into this important family of neurotransmitter receptors. These prokaryotic homologs share the overall architecture of their eukaryotic counterparts with conservation in functionally important residues....
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2009.07.006
更新日期：2009-08-01 00:00:00
abstract：:O-GlcNAcylation is an enzymatic post-translational modification occurring in hundreds of protein substrates. This modification occurs through the addition of the monosaccharide N-acetylglucosamine to serine and threonine residues on intracellular proteins in the cytosol, nucleus, and mitochondria. As a highly dynamic ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2020.12.005
更新日期：2021-01-09 00:00:00
abstract：:ATP- and NAD(+)-dependent DNA ligases, ATP-dependent RNA ligases and GTP-dependent mRNA capping enzymes comprise a superfamily of proteins that catalyze nucleotidyl transfer to polynucleotide 5' ends via covalent enzyme-(lysyl-N)-NMP intermediates. The superfamily is defined by five peptide motifs that line the nucleo...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2004.10.006
更新日期：2004-12-01 00:00:00
abstract：:CCA-adding enzymes (tRNA nucleotidyltransferases) are responsible for the maturation or repair of the functional 3' end of tRNAs. These enzymes are remarkable because they polymerize the essential nucleotides CCA onto the 3' terminus of tRNA precursors without using a nucleic acid template. Recent crystal structures, ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2005.12.001
更新日期：2006-02-01 00:00:00
abstract：:Salt-dependent electrostatic effects are a major factor in determining the stability, structure, reactivity, and binding behavior of nucleic acids. Increasingly detailed theoretical methods, especially those based on Monte Carlo and Poisson-Boltzmann methodologies, combined with powerful computational algorithms are b...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/0959-440x(95)80093-x
更新日期：1995-06-01 00:00:00
abstract：:Mucin-type O-glycosylation is a post-translational modification (PTM) that is predicted to occur in more than the 80% of the proteins that pass through the Golgi apparatus. This PTM is initiated by a family of polypeptide GalNAc-transferases (GalNAc-Ts) that modify Ser and Thr residues of proteins through the addition...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2018.12.007
更新日期：2019-06-01 00:00:00
abstract：:Molecular flexibility over a wide time range is of central importance to the function of many proteins, both soluble and membrane. Revealing the modes of flexibility, their amplitudes, and time scales under physiological conditions is the challenge for spectroscopic methods, one of which is site-directed spin labeling...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.06.008
更新日期：2013-10-01 00:00:00
abstract：:Kinetochores are large macromolecular assemblies that link chromosomes to spindle microtubules (MTs) during mitosis. Here we review recent advances in the study of core MT-binding kinetochore complexes using electron microcopy methods in vitro and nanometer-accuracy fluorescence microscopy in vivo. We synthesize these...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2011.07.009
更新日期：2011-10-01 00:00:00
abstract：:The modulation of enzyme function is a key regulatory feature of biological systems. The ability to engineer synthetic enzymes that can be controlled by any arbitrary signal would enable a wide array of sensing applications and therapeutics and provide us with powerful tools for the basic study of biology. Here severa...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2009.04.007
更新日期：2009-08-01 00:00:00
abstract：:Intrinsically disordered regions (IDRs) are fundamental units of protein function and regulation. Despite their inability to form a unique stable tertiary structure in isolation, many IDRs adopt a defined conformation upon binding and achieve their function through their interactions with other biomolecules. However, ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2014.05.007
更新日期：2014-06-01 00:00:00
abstract：:Electrostatics plays a major role in the stabilization and function of biomolecules; as such, it remains a major focus of theoretical and computational studies of macromolecules. Electrostatic interactions are long range, and strongly dependent on the solvent and ions surrounding the biomolecule under study. During th...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2006.03.001
更新日期：2006-04-01 00:00:00
abstract：:Investigating the in vitro refolding of proteins that naturally reside in biological membranes is a notoriously difficult task. Biophysical studies on model systems are beginning to provide a sound physical basis for membrane protein folding that should help to alleviate this problem. Highlights of these studies inclu...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(99)80015-3
更新日期：1999-02-01 00:00:00
abstract：:There are now many successful examples of the design of new ligands based on knowledge of target protein structures. In most cases those ligands are unsuitable as drugs because of problems of toxicity, stability or bioavailability. The past twelve months have also seen the description of the structures of many protein...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/0959-440x(94)90268-2
更新日期：1994-12-01 00:00:00
abstract：:Protein design is still a challenging undertaking, often requiring multiple attempts or iterations for success. Typically, the source of failure is unclear, and scoring metrics appear similar between successful and failed cases. Nevertheless, the use of sequence statistics, modularity and symmetry from natural protein...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2016.05.007
更新日期：2016-06-01 00:00:00
abstract：:Cohesin-Dockerin interactions are at the core of cellulosomal assembly and organization. They are highly specific and form stable complexes, allowing cellulosomes to adopt distinct conformations. Each cellulosomal system seems to have a particular organizational strategy that can vary in complexity according to the na...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2018.03.012
更新日期：2018-04-01 00:00:00
abstract：:Directed evolution is widely used to improve enzymes, particularly for industrial biocatalytic processes. Molecular biology advances present many new strategies for directed evolution. Commonly used techniques have led to many successful examples of enzyme improvement, yet there is still a need to improve both the eff...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2011.05.003
更新日期：2011-08-01 00:00:00
abstract：:Electron cryo-microscopy (cryoEM) is used to determine structures of biological molecules, including multi-protein complexes. Maps at better than 3.0Å resolution are relatively straightforward to interpret since atomic models of proteins and nucleic acids can be built directly. Still, these resolutions are often diffi...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.06.009
更新日期：2019-10-01 00:00:00
abstract：:The recent and growing evidence that the efficacy of a drug can be correlated to target binding kinetics has seeded the development of a multitude of novel methods aimed at computing rate constants for receptor-ligand binding processes, as well as gaining an understanding of the binding and unbinding pathways and the ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2017.10.001
更新日期：2018-04-01 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
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(03)00070-8
更新日期：2003-06-01 00:00:00
abstract：:Newly synthesized proteins leave the ribosome through a narrow tunnel in the large subunit. During ongoing synthesis, nascent protein chains are particularly sensitive to aggregation and degradation because they emerge from the ribosome in an unfolded state. In bacteria, the first protein to interact with nascent chai...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2005.03.005
更新日期：2005-04-01 00:00:00
abstract：:The postsynaptic density (PSD) is a protein-rich assembly below the postsynaptic membrane, formed of large scaffolding proteins. These proteins carry a combination of protein interaction domains, which may interact with several alternative partners; the structure of the protein assembly can be regulated in an activity...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2019.01.007
更新日期：2019-02-01 00:00:00
abstract：:Recent advances in neutron and X-ray sources and instrumentation, new and improved scattering techniques, and molecular biology techniques, which have permitted facile preparation of samples, have each led to new opportunities in using small-angle scattering to study the conformations and interactions of biological ma...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(97)80081-4
更新日期：1997-10-01 00:00:00
abstract：:Bacterial transcription initiation is controlled by sigma factors, the RNA polymerase (RNAP) subunits responsive for promoter specificity. While the primary sigma factor ensures the bulk of transcription during growth, a major strategy used by bacteria to regulate gene expression consists of modifying the RNAP promote...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2015.01.006
更新日期：2015-02-01 00:00:00
abstract：:During protein evolution, novel domain arrangements are continuously formed. Rearrangements are important for the creation of molecular biodiversity and for functional molecular changes which underlie developmental shifts in the bauplan of organisms. Here we review the mechanisms by which new arrangements arise and th...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.02.012
更新日期：2013-06-01 00:00:00
abstract：:The winged helix proteins constitute a subfamily within the large ensemble of helix-turn-helix proteins. Since the discovery of the winged helix/fork head motif in 1993, a large number of topologically related proteins with diverse biological functions have been characterized by X-ray crystallography and solution NMR ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/s0959-440x(99)00057-3
更新日期：2000-02-01 00:00:00
abstract：:The last two years have seen major advances in understanding the structural basis of bacterial cell envelope glycoconjugate biosynthesis, including capsules, lipopolysaccharide, teichoic acid, cellulose, and peptidoglycan. The recent crystal and cryo-electron microscopy structures of proteins involved in the initial g...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2020.11.013
更新日期：2021-01-08 00:00:00
abstract：:Antibody engineering has been an extremely intensive research area for many years. Recent achievements discussed in this review include: (i) significant improvements in the field of selection of antigen-specific antibody fragments on bacteriophages; (ii) new structural work, in particular using NMR; (iii) the cloning ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/0959-440x(95)80028-x
更新日期：1995-08-01 00:00:00
abstract：:Here we review mechanisms of protein evolution leading to structural changes in protein complexes. These mechanisms include mutations directly within protein interfaces, as well as the effects of mutations that propagate from distant regions of the protein. We also discuss the constraints protein complex structures im...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2013.07.004
更新日期：2013-12-01 00:00:00
abstract：:The past years have seen tremendous progress towards understanding how arrestins recognize phosphorylated G protein-coupled receptors (GPCRs). Two arrestin crystal structures, one of a pre-activated splice variant and one bound to a GPCR phosphopeptide, provided insights into the conformational changes upon phosphate ...
journal_title：Current opinion in structural biology
pub_type： 杂志文章,评审
doi：10.1016/j.sbi.2014.07.006
更新日期：2014-12-01 00:00:00
