Abstract：
:The atomic force microscope (AFM) allows biomolecules to be observed and manipulated under native conditions. It operates in buffer solution, produces molecular images with outstanding signal-to-noise ratio, and addresses single molecules. Progress in sample preparation and instrumentation has led to topographs that reveal sub-nanometer details and surface dynamics of biomolecules. Antibodies or oligonucleotides immobilized on cantilevers induce bending upon binding of the cognate biomolecule, allowing sub-picomolar concentrations to be measured. Biomolecules tethered between support and retracting AFM-tip produce force extension curves that reflect the mechanical stability of secondary structure elements. Furthermore, multifunctional tips may activate single molecules to observe them at work. In all cases, the cantilever is critical: its mechanical properties dictate the force-sensitivity and the scanning speed.
journal_name
Curr Opin Chem Bioljournal_title
Current opinion in chemical biologyauthors
Frederix PL,Akiyama T,Staufer U,Gerber Ch,Fotiadis D,Müller DJ,Engel Adoi
10.1016/j.cbpa.2003.08.010subject
Has Abstractpub_date
2003-10-01 00:00:00pages
641-7issue
5eissn
1367-5931issn
1879-0402pii
S1367593103001133journal_volume
7pub_type
杂志文章,评审abstract：:In recent years, ogliopeptides have enjoyed ever increasing interest in two areas: first, approaches to biomimetic enzyme-like activity; and second, as metal-free catalysts for enantioselective transformations of synthetic interest. The discovery and optimization of peptides for these purposes has often used the metho...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(03)00065-6
更新日期：2003-06-01 00:00:00
abstract：:The global nitrogen cycle is the process in which different forms of environmental N are interconverted by microorganisms either for assimilation into biomass or in respiratory energy-generating pathways. This short review highlights developments over the last 5 years in our understanding of functionality of nitrogena...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2016.02.009
更新日期：2016-04-01 00:00:00
abstract：:Bacterial-derived antimicrobial polypeptides enjoy a large degree of structural and chemical diversity. Two well-studied examples of such polypeptides are the lanthionine-containing lantibiotics produced by a variety of Gram-positive bacteria, and their Gram-negative counterparts, the microcins. Both groups are produc...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(00)00094-6
更新日期：2000-06-01 00:00:00
abstract：:Initiating and terminating free-radical reactionis via hydrogen atom transfer (HAT) is an attractive means of avoiding substrate prefunctionalization. Small molecule catalysts and reagents, however, struggle to execute this fundamental step with useful levels of diastereoselectivity and enantioselectivity. In contrast...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2018.09.001
更新日期：2019-04-01 00:00:00
abstract：:In the past five to ten years, it has become increasingly apparent that the function of Fe-S clusters is not limited to electron transfer, a function implicit in their discovery. We now know that the vulnerability of these structures to oxidative destruction is used by nature in sensing O2, iron, and possibly also nit...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/S1367-5931(99)80027-1
更新日期：1999-04-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2017.07.008
更新日期：2017-10-01 00:00:00
abstract：:Within this review article we describe recent developments in asymmetric catalysis with peptides. Numerous peptides have been established in the past two decades that catalyze a wide variety of transformations with high stereoselectivities and yields, as well as broad substrate scope. We highlight here catalytically a...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2014.09.011
更新日期：2014-10-01 00:00:00
abstract：:Iron is an essential nutrient for life, and its capacity to cycle between different oxidation states is required for processes spanning oxygen transport and respiration to nucleotide synthesis and epigenetic regulation. However, this same redox ability also makes iron, if not regulated properly, a potentially dangerou...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2017.12.010
更新日期：2018-04-01 00:00:00
abstract：:Natural evolution has produced a great diversity of proteins that can be harnessed for numerous applications in biotechnology and pharmaceutical science. Commonly, specific applications require proteins to be tailored by protein engineering. Directed evolution is a type of protein engineering that yields proteins with...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2014.09.013
更新日期：2014-10-01 00:00:00
abstract：:Methanogenesis from trimethylamine, dimethylamine or monomethylamine is initiated by a series of corrinoid-dependent methyltransferases. The non-homologous genes encoding the full-length methyltransferases each possess an in-frame UAG (amber) codon that does not terminate translation. The amber codon is decoded by a d...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2004.08.012
更新日期：2004-10-01 00:00:00
abstract：:KL4 (sinapultide) represents the first peptide-based replacement for surfactant protein B in pulmonary surfactant (PS) therapies approved for clinical use. Surfaxin, its formulation with PS lipids, shows the promise of synthetic PS for replacing animal-derived PS in the treatment of respiratory distress syndromes and ...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2016.02.012
更新日期：2016-06-01 00:00:00
abstract：:The molecular mechanisms by which peptide antibiotics disrupt bacterial DNA synthesis, protein biosynthesis, cell wall biosynthesis, and membrane integrity are diverse, yet historically have been understood to follow a theme of one antibiotic, one inhibitory mechanism. In the past year, mechanistic and structural stud...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(99)00025-3
更新日期：1999-12-01 00:00:00
abstract：:Recent studies of moonlighting functions and catalytic promiscuity provide insights into the structural and mechanistic bases of these phenomena. Moonlighting proteins that are highlighted include gephyrin, the Neurospora crassa tyrosyl tRNA synthetase, phosphoglucose isomerase, and cytochrome c. New insights into cat...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(03)00032-2
更新日期：2003-04-01 00:00:00
abstract：:Recent advances in multidimensional nuclear magnetic resonance methodology to obtain 1H, 15N and 13C resonance assignments, interproton distance and torsion angle restraints, and restraints that characterize long-range order, coupled with new methods of structure refinement and novel methods for reducing linewidths, h...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(98)80084-7
更新日期：1998-10-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2008.08.037
更新日期：2008-12-01 00:00:00
abstract：:By acoustically detecting the optical absorption contrast, photoacoustic (PA) tomography (PAT) has broken the penetration limits of traditional high-resolution optical imaging. Through spectroscopic analysis of the target's optical absorption, PAT can identify a wealth of endogenous and exogenous molecules and thus is...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2018.03.016
更新日期：2018-08-01 00:00:00
abstract：:Systematic studies of the organization of biochemical networks that make up the living cell can be defined by studying the organization and dynamics of protein interaction networks (PINs). Here, we describe recent conceptual and experimental advances that can achieve this aim and how chemical perturbations of interact...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2004.12.009
更新日期：2005-02-01 00:00:00
abstract：:Efficient library design is an ongoing challenge for investigators seeking novel ligands for proteins, whether for drug discovery or chemical biology. Strategies that add neglected chemistry or exclude unproductive compounds are two dominant recent themes, as is a growing awareness of molecular complexity and its impl...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2006.06.003
更新日期：2006-08-01 00:00:00
abstract：:Peptides that recognize specific cell types promise to be valuable tools both in research and clinical applications. Cell-specific peptides can be useful as drug delivery vehicles, diagnostic agents, affinity reagents for cell purification, gene therapy delivery agents, and research tools to probe the nature of a cell...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(99)00045-9
更新日期：2000-02-01 00:00:00
abstract：:There is currently intense interest in unravelling the modus operandi of type I modular polyketide synthases in order to lay the ground work for their use in the combinatorial biosynthesis of new bioactive molecules. Much of our knowledge is derived from studies on 6-deoxyerythronolide B (DEBS), the enzyme assembling ...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(99)00014-9
更新日期：1999-10-01 00:00:00
abstract：:Majority of eukaryotic proteins are glycosylated and their glycan moieties have numerous important structural, functional and regulatory roles. Because of structural complexity of glycans and technological limitations glycomics, and particularly glycoproteomics was not able to follow rapid progress in genomics and pro...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2012.12.007
更新日期：2013-02-01 00:00:00
abstract：:Synthetic biology offers a bottom-up engineering approach that intends to understand complex systems via design-build-test cycles. Embryonic development comprises complex processes that originate at the level of gene regulatory networks in a cell and emerge into collective cellular behaviors with multicellular forms a...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2019.04.006
更新日期：2019-10-01 00:00:00
abstract：:Allosteric binding sites, as opposed to traditional orthosteric binding sites, offer unparalleled opportunities for drug discovery by providing high levels of selectivity, mimicking physiological conditions, affording fewer side effects because of desensitization/downregulation, and engendering ligands with chemotypes...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2008.02.014
更新日期：2008-06-01 00:00:00
abstract：:Peptide nucleic acid (PNA)-encoded chemical libraries along with DNA-encoded libraries have provided a powerful new paradigm for library synthesis and ligand discovery. PNA-encoding stands out for its compatibility with standard solid phase synthesis and the technology has been used to prepare libraries of peptides, h...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2015.01.005
更新日期：2015-06-01 00:00:00
abstract：:Recent advances in the development of the phosphorescent Ir(III) complexes have made it possible to implement the phosphorescence modality in bioimaging applications. A variety of phosphorescent Ir(III) complexes have been synthesized and assessed in the context of in vitro and in vivo imaging, especially in subcellul...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2013.05.023
更新日期：2013-08-01 00:00:00
abstract：:Nucleic acids such as DNA are increasingly being applied in nanotechnology, as a result of their capability to self-assemble reversibly. The formal replacement of canonical base pairs by metal-mediated ones enables a site-specific introduction of metal-based functionality into these biomolecules, leading to the format...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2017.01.019
更新日期：2017-04-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2014.09.030
更新日期：2014-10-01 00:00:00
abstract：:The cytochrome bc(1) complex is a key mitochondrial enzyme that catalyses transfer of electrons maintaining the membrane potential of mitochondria. Currently, atovaquone is the only drug in clinical use targeting the Plasmodium falciparum bc(1) complex. The rapid emergence of resistance to atovaquone resulted in a cos...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2010.05.005
更新日期：2010-08-01 00:00:00
abstract：:Peptide arrays have attracted wide interest as tools for discovering biochemical interactions. Because many protein binding and enzyme activities are directed towards peptides, the preparation of arrays having hundreds to thousands of immobilized peptides offers an unprecedented opportunity for identifying interaction...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/j.cbpa.2004.08.007
更新日期：2004-10-01 00:00:00
abstract：:New insights have been gained into the formation of the di-iron tyrosyl radical cofactor, which is essential for nucleotide reduction in the class I ribonucleotide reductases. Recent advances include Insight into the function of the tyrosyl radical in initiation of nucleotide reduction. ...
journal_title：Current opinion in chemical biology
pub_type： 杂志文章,评审
doi：10.1016/s1367-5931(03)00025-5
更新日期：2003-04-01 00:00:00
