Activity-based sensing fluorescent probes for iron in biological systems.

abstract：:Protein engineering over the past four years has made rhodopsin-based genetically encoded voltage indicators a leading candidate to achieve the task of reporting action potentials from a population of genetically targeted neurons in vivo. Rational design and large-scale screening efforts have steadily improved the dyn...

journal_title：Current opinion in chemical biology

authors： Gong Y

更新日期：2015-08-01 00:00:00

abstract：:Recently, the hypothesis that protein motions are involved in enzymatic turnover has gained significant attention. We review cases where there is evidence that protein motions are rate-limiting in the overall catalytic cycle and examine experimental and theoretical evidence for how such motions enhance the probability...

journal_title：Current opinion in chemical biology

authors： Nashine VC,Hammes-Schiffer S,Benkovic SJ

更新日期：2010-10-01 00:00:00

abstract：:Although new detection screening methods must still be developed, the actual main limitation in combinatorial chemistry seems to be the diversity of ligands that can be generated in terms of real structural and chemical diversity. Thus, there is a strong interest for the development of different strategies for the par...

journal_title：Current opinion in chemical biology

authors： Lavastre O,Bonnette F,Gallard L

更新日期：2004-06-01 00:00:00

abstract：:Major advances have been made in our understanding of cytochrome c oxidase owing to continued crystallographic work on important intermediates. This, together with a wealth of data derived from selective mutations and sophisticated spectroscopic probes, has provided significant new insights into oxidase dioxygen chemi...

journal_title：Current opinion in chemical biology

authors： Poulos TL,Li H,Raman CS

更新日期：1999-04-01 00:00:00

abstract：:Amide forming reactions are central to the field of peptide and protein synthesis and are considered to be poorly reversible reactions owing to the high stability of peptide bonds. One amide-forming reaction is native chemical ligation (NCL) which is driven by a sulfur to nitrogen acyl migration process from a transie...

journal_title：Current opinion in chemical biology

authors： Melnyk O,Agouridas V

更新日期：2014-10-01 00:00:00

abstract：:The area of lipid molecular design is attracting widespread interest among numerous research groups worldwide. Diverse lipid assemblies in aqueous media, such as vesicles, bilayers and nanorods, offer new applications in chemical biology. Lipids with specifically tailored molecular architecture have been successfully ...

journal_title：Current opinion in chemical biology

authors： Bhattacharya S,Bajaj A

更新日期：2005-12-01 00:00:00

abstract：:Oligosaccharide recognition is a major means of bacterial-host cell attachment. Bacterial-host receptor binding can subvert host signaling pathways to cause pathology. In addition, pathogenic bacteria can utilize more than one recognition system to bind host cells. Recent studies of Helicobacter pylori illustrate both...

journal_title：Current opinion in chemical biology

authors： Lingwood CA

更新日期：1998-12-01 00:00:00

abstract：:The (re)design of enzymes to catalyze 'new' reactions is a topic of considerable practical and intellectual interest. Directed evolution (random mutagenesis followed by screening/selection) has been used widely to identify novel biocatalysts. However, 'rational' approaches using either natural divergent evolution or c...

journal_title：Current opinion in chemical biology

authors： Gerlt JA,Babbitt PC

更新日期：2009-02-01 00:00:00

abstract：:Oligosaccharyl transferase is part of the macromolecular machinery that processes nascent proteins in the endoplasmic reticulum. The enzyme is highly conserved, catalyzes the initial step in the biosynthesis of N-linked glycoproteins and acts as a 'gatekeeper' for the secretory pathway. As more proteins associated wit...

journal_title：Current opinion in chemical biology

authors： Dempski RE Jr,Imperiali B

更新日期：2002-12-01 00:00:00

abstract：:There is tremendous interest in developing and refining methods to predictably perform chemical reactions within the framework of living systems. Here we review recent advances in applying tetrazine cycloadditions to live cell and in vivo chemistry. We highlight new syntheses of the tetrazine and dienophile precursors...

journal_title：Current opinion in chemical biology

authors： Sečkutė J,Devaraj NK

更新日期：2013-10-01 00:00:00

abstract：:Phosphorus cycling in the biosphere has traditionally been thought to involve almost exclusively transformations of the element in its pentavalent oxidation state. Recent evidence, however, suggests that a significant fraction of environmental phosphorus may exist in a more reduced form. Most abundant of these reduced...

journal_title：Current opinion in chemical biology

authors： Chin JP,McGrath JW,Quinn JP

更新日期：2016-04-01 00:00:00

abstract：:Polyketides are a large class of structurally diverse, biologically active natural products. Recent experiments add evidence that many of the enzymes involved in the biosynthesis of these natural products are intrinsically tolerant of nonnatural substrates. In addition, an increasing understanding of structure-functio...

journal_title：Current opinion in chemical biology

authors： Pohl NL

更新日期：2002-12-01 00:00:00

abstract：:Lipopolysaccharide (LPS), a glycolipid found in the outer membrane of Gram-negative bacteria, is a potent elicitor of innate immune responses in mammals. A typical LPS molecule is composed of three different structural domains: a polysaccharide called the O-antigen, a core oligosaccharide, and Lipid A. Lipid A is the ...

journal_title：Current opinion in chemical biology

authors： Xiao X,Sankaranarayanan K,Khosla C

更新日期：2017-10-01 00:00:00

abstract：:The rapid growth of bio-sequence information has resulted in an increasing demand for reliable methods that group proteins. A few databases with curated alignments of protein families have demonstrated that expert-driven repositories can keep up with the data deluge in the genome era. These original resources implicit...

journal_title：Current opinion in chemical biology

authors： Liu J,Rost B

更新日期：2003-02-01 00:00:00

abstract：:Genetically Encoded Voltage Indicators (GEVIs) are powerful tools used to investigate neural activity in the brain. The spatiotemporal resolution of GEVIs is on a subcellular and millisecond scale, and is superior to that of the functional magnetic resonance imaging (fMRI) and electroencephalogram (EEG). Further, whil...

journal_title：Current opinion in chemical biology

authors： Inagaki S,Nagai T

更新日期：2016-08-01 00:00:00

abstract：:Four-electron reduction of dioxygen to water and splitting of water to dioxygen are extremely important processes in the context of attaining clean renewable energy sources. High-valent metal-oxo cores are proposed as reactive intermediates in these vital processes, although they have only been isolated in extremely r...

journal_title：Current opinion in chemical biology

authors： Ray K,Heims F,Schwalbe M,Nam W

更新日期：2015-04-01 00:00:00

abstract：:Natural products continue to provide privileged scaffolds for drug discovery. However, challenges in supply and structure diversification can limit development. Here, we discuss recent (2017-2020) examples of synthetic biology approaches used to address challenges in supply and contribute to structure diversification ...

journal_title：Current opinion in chemical biology

authors： Romanowski S,Eustáquio AS

更新日期：2020-10-01 00:00:00

abstract：:Signal amplification in conventional enzyme-based biosensors is not high enough to achieve the ultrasensitive detection of biomolecules. In recent years, signal amplification has been improved by combining enzymatic reactions with redox cycling or employing multienzyme labels per detection probe. Electrochemical-chemi...

journal_title：Current opinion in chemical biology

authors： Yang H

更新日期：2012-08-01 00:00:00

abstract：:Combinatorial chemistry methods and high-throughput screening for leads in industrial drug discovery have generated a potential bottleneck in the optimisation processes that seek to align potency with good pharmacokinetics in order to produce good medicines. This has resulted in the need for higher throughput methods ...

journal_title：Current opinion in chemical biology

authors： Tarbit MH,Berman J

更新日期：1998-06-01 00:00:00

abstract：:The notorious difficulty of elucidating structures of membrane transporters by crystallography has long prevented our understanding of active transport mechanism coupled with ion/proton transport. The determination of the first crystal structure of the drug/H+ antiporter AcrB was a breakthrough for structure-based und...

journal_title：Current opinion in chemical biology

authors： Tamura N,Konishi S,Yamaguchi A

更新日期：2003-10-01 00:00:00

abstract：:The number of new chemical entities has remained rather constant (averaging 37 per year) in the past decade, despite the multiple-fold increase in the number of compounds that are being made and tested. Chemical space requires novel methods that can handle the increasing number of potentially accessible molecules. Nei...

journal_title：Current opinion in chemical biology

authors： Oprea TI

更新日期：2002-06-01 00:00:00

abstract：:Sugar nucleotide-modifying enzymes of the short-chain dehydrogenase/reductase type use transient oxidation-reduction by a tightly bound nicotinamide cofactor as a common strategy of catalysis to promote a diverse set of reactions, including decarboxylation, single- or double-site epimerization, and dehydration. Althou...

journal_title：Current opinion in chemical biology

authors： Borg AJE,Beerens K,Pfeiffer M,Desmet T,Nidetzky B

更新日期：2020-11-06 00:00:00

abstract：:The catalytic pathways of soluble methane monooxygenase (sMMO) and cytochrome P450CAM, iron-containing enzymes, are described and compared. Recent extensive density functional ab initio electronic structure calculations have revealed many similarities in a number of the key catalytic steps, as well as some important d...

journal_title：Current opinion in chemical biology

authors： Guallar V,Gherman BF,Lippard SJ,Friesner RA

更新日期：2002-04-01 00:00:00

abstract：:Fifty years after the publication of the DNA double helix model by Watson and Crick, new nucleic acid structures keep emerging at an ever-increasing rate. The past three years have brought a flurry of new oligonucleotide structures, including those of a Hoogsteen-paired DNA duplex, Holliday junctions, DNA-drug complex...

journal_title：Current opinion in chemical biology

authors： Egli M

更新日期：2004-12-01 00:00:00

abstract：:Protein synthesis is inherently a dynamic process, requiring both small-scale and large-scale movements of tRNA and mRNA. It has long been suspected that these movements might be coupled to conformational changes in the ribosome, and in its RNA moieties in particular. Recently, the nature of ribosome structural dynami...

journal_title：Current opinion in chemical biology

authors： Korostelev A,Ermolenko DN,Noller HF

更新日期：2008-12-01 00:00:00

abstract：:NMR, already some 50 years old, has long been an invaluable analytical method in industry for verification of chemical synthesis and compound characterisation. The range of molecular information accessible through NMR, however, offers a far larger horizon of applications. Of these, ligand screening by NMR has emerged ...

journal_title：Current opinion in chemical biology

authors： Diercks T,Coles M,Kessler H

更新日期：2001-06-01 00:00:00

abstract：:New insights have been gained into the therapeutic relevance of the sphingosine 1-phosphate (S1P) pathway, on the basis of reverse pharmacological approaches to defining the mechanism of action of the immunosuppressive agent FTY720. Natural and synthetic sphingosine 1-phosphate receptor agonists can make picomolar int...

journal_title：Current opinion in chemical biology

authors： Rosen H,Liao J

更新日期：2003-08-01 00:00:00

abstract：:The ability of cobalamin to coordinate different upper axial ligands gives rise to a diversity of reactivity. Traditionally, adenosylcobalamin is associated with radical-based rearrangements, and methylcobalamin with methyl cation transfers. Recently, however, a new role for adenosylcobalamin has been discovered as a ...

journal_title：Current opinion in chemical biology

authors： Bridwell-Rabb J,Drennan CL

更新日期：2017-04-01 00:00:00

abstract：:Chemical imaging plays an increasingly important role in studying heterogeneous biological systems. It combines molecular spectroscopy with high-resolution spatial information to create quantitative images of molecular distributions. Here I summarize recent progress in technical developments and biological application...

journal_title：Current opinion in chemical biology

authors： Fu D

更新日期：2017-08-01 00:00:00

abstract：:Structural modification of naturally occurring beta-lactams and beta-lactones is a highly effective strategy for generating drugs for treating bacterial infections, cancer, obesity, and hyperlipidemia. These drugs acylate catalytic amino acids (serine, threonine, or cysteine) in enzyme targets such as penicillin-bindi...

journal_title：Current opinion in chemical biology

authors： Kluge AF,Petter RC

更新日期：2010-06-01 00:00:00