Ultrafast fluorescence spectroscopy via upconversion applications to biophysics.

abstract：:Experimental screening for protein-ligand interactions is a central task in drug discovery. Nuclear magnetic resonance (NMR) spectroscopy enables the determination of binding affinities, as well as the measurement of structural and dynamic parameters governing the interaction. With traditional liquid-state NMR relying...

journal_title：Methods in enzymology

authors： Kim Y,Hilty C

更新日期：2019-01-01 00:00:00

abstract：:Atomic force microscopy (AFM) enables direct visualization of single-protein molecules in liquids at submolecular resolution. High-speed AFM further makes it possible to visualize dynamic biomolecular processes at subsecond resolution. However, dynamic imaging of biomolecular processes imposes various requirements on ...

journal_title：Methods in enzymology

authors： Yamamoto D,Uchihashi T,Kodera N,Yamashita H,Nishikori S,Ogura T,Shibata M,Ando T

更新日期：2010-01-01 00:00:00

abstract：:Respiration is widely used for evaluation of the metabolic capabilities or physiological state of the microbial culture. This chapter describes novel approaches for characterization of respiration at a single cell level: (1) flow cytometry-based redox sensing (FCRS) of actively metabolizing microbes; (2) respiration r...

journal_title：Methods in enzymology

authors： Konopka MC,McQuaide S,Ojala DS,Kalyuzhnaya MG,Lidstrom ME

更新日期：2011-01-01 00:00:00

abstract：:To elucidate the molecular mechanisms of vertebrate color vision, it is essential to establish associations between amino acid substitutions and the directions of lambda max shifts of visual pigments. In this way, we can identify critical amino acid changes that may be responsible for lambda max shifts of visual pigme...

journal_title：Methods in enzymology

authors： Yokoyama S

更新日期：2000-01-01 00:00:00

abstract：:Here we describe an optimized recombineering protocol for the creation of conditional alleles. Recombineering is a DNA engineering methodology based on homologous recombination in Escherichia coli. It presents a number of advantages over conventional engineering methods, including the ability to place target sites for...

journal_title：Methods in enzymology

authors： Fu J,Teucher M,Anastassiadis K,Skarnes W,Stewart AF

更新日期：2010-01-01 00:00:00

abstract：:The Duffy blood group antigen is a serpentine protein with seven transmembrane domains that is not coupled to G-proteins or other known intracellular effectors. In addition to erythrocytes, it is also expressed in endothelial cells and neurons. In recent years the Duffy antigen has received much attention because of i...

journal_title：Methods in enzymology

authors： Rot A,Horuk R

更新日期：2009-01-01 00:00:00

abstract：:Rarely is any solution simply solute and water. In vivo, solutes, such as proteins and nucleic acids, swim in a sea of water, salts, ions, small molecules, and lipids, not to mention other macromolecules. In vitro, virtually all solutions contain a mixture of aqueous solvents, or "cosolvents" [i.e., solvent(s) in addi...

journal_title：Methods in enzymology

authors： Beck DA,Bennion BJ,Alonso DO,Daggett V

更新日期：2007-01-01 00:00:00

abstract：:Autophagy is an extremely dynamic process that mediates the rapid degradation of intracellular components in response to different stress conditions. The autophagic response is executed by specific protein complexes, whose function is regulated by posttranslational modifications and interactions with positive and nega...

journal_title：Methods in enzymology

authors： Antonioli M,Ciccosanti F,Dengjel J,Fimia GM

更新日期：2017-01-01 00:00:00

abstract：:Considering that HIV-1 accumulates and replicates actively within lymphoid tissues, any strategy that will decrease viral stores in these tissues might be beneficial to the infected host. Follicular dendritic cells (FDC), B lymphocytes, antigen-presenting cells like macrophages, and activated CD4(+) T cells are abunda...

journal_title：Methods in enzymology

authors： Désormeaux A,Bergeron MG

更新日期：2005-01-01 00:00:00

abstract：:G-protein-coupled receptors (GPCRs) represent a major class of receptors through which a number of signals ranging from photons to large glycoprotein hormones are recognized. Human genome encodes about 800 GPCRs, yet very little structural information is available on this class of receptors. Structural studies provide...

journal_title：Methods in enzymology

authors： Ashok Y,Nanekar RT,Jaakola VP

更新日期：2013-01-01 00:00:00

abstract：:Dicer is a multidomain ribonuclease that processes double-stranded RNAs (dsRNAs) to 21-nt small interfering RNAs (siRNAs) during RNA interference and excises microRNAs (miRNAs) from precursor hairpins. PAZ and PIWI domain (PPD) proteins, also involved in RNAi and miRNA function, are the best-characterized proteins kno...

journal_title：Methods in enzymology

authors： Kolb FA,Zhang H,Jaronczyk K,Tahbaz N,Hobman TC,Filipowicz W

更新日期：2005-01-01 00:00:00

abstract：:Advanced glycation is one of the major pathophysiological posttranslational modifications. Under hyperglycemic conditions or oxidative stress, proteins and DNA are nonenzymatically modified by oxidative glycation and converted to advanced glycation endproducts (AGEs), which induce the loss of protein functions or apop...

journal_title：Methods in enzymology

authors： Inagi R

更新日期：2011-01-01 00:00:00

abstract：:Enveloped virus particles select their lipid-protein components and egress by budding from the host cell membranes. The matrix protein of many enveloped viruses has been proposed as a crucial element for viral budding; however, molecular mechanisms behind membrane remodeling by the matrix protein are yet to be unravel...

journal_title：Methods in enzymology

authors： Shnyrova AV,Zimmerberg J

更新日期：2009-01-01 00:00:00

abstract：:The phenomenon of chemical or conformational exchange in NMR spectroscopy has enabled detailed characterization of time-dependent aspects of biomolecular function, including folding, molecular recognition, allostery, and catalysis, on timescales from microsecond to second. Importantly, NMR methods based on a variety o...

journal_title：Methods in enzymology

authors： Palmer AG 3rd,Koss H

更新日期：2019-01-01 00:00:00

abstract：:Endocytosis and autophagy are key vesicular pathways involved in degradation and recycling of cellular material. Both degradative pathways finally fuse with lysosome but are indeed interconnected at several levels. In particular, the fusion between endosomes and autophagosomes can generate intermediate vesicles named ...

journal_title：Methods in enzymology

authors： Manil-Ségalen M,Culetto E,Legouis R,Lefebvre C

更新日期：2014-01-01 00:00:00

abstract：:Membrane proteins (MPs) are insoluble in aqueous media as a result of incompatibility between the hydrophilic property of the solvent molecules and the hydrophobic nature of MP surfaces, normally associated with lipid membranes. Amphipathic compounds are necessary for extraction of these macromolecules from the native...

journal_title：Methods in enzymology

authors： Sadaf A,Cho KH,Byrne B,Chae PS

更新日期：2015-01-01 00:00:00

abstract：:Phosphoinositide-3-kinase (PI3K) signaling has been implicated in a panoply of cellular responses including survival, proliferation, protein synthesis, migration, and vesicular trafficking. In addition, alterations in the enzymatic activity of PI3Ks have been involved in the pathogenesis of multiple diseases, ranging ...

journal_title：Methods in enzymology

authors： Ciraolo E,Gulluni F,Hirsch E

更新日期：2014-01-01 00:00:00

abstract：:The methods of computational chemistry and molecular modeling are becoming more and more accessible to biochemists with the advent of fast, inexpensive graphics workstations and well-tested computer programs. The state of the art in small molecules allows chemists to use these programs as "black boxes" and be confiden...

journal_title：Methods in enzymology

authors： Wampler JE

更新日期：1994-01-01 00:00:00

abstract：:This chapter presents methodologies for RNA extraction from soils coupled with competitive reverse transcription-polymerase chain reaction and capillary electrophoresis techniques. Combined, these approaches provide new capabilities to quantify gene expression in different environments and can aid our understanding of...

journal_title：Methods in enzymology

authors： Semrau JD,Han JI

更新日期：2005-01-01 00:00:00

abstract：:Modular calcium-dependent carbohydrate-recognition domains (CRDs) of mammalian glycan-binding receptors (C-type lectins), engineered to have novel glycan-binding selectivity, have been developed as tools for the study of glycans on cell surfaces. Structure-based specificity swapping between domains can be complemented...

journal_title：Methods in enzymology

authors： Powlesland AS,Quintero-Martinez A,Lim PG,Pipirou Z,Taylor ME,Drickamer K

更新日期：2010-01-01 00:00:00

abstract：:In principle, the long emission lifetimes of lanthanide chelates should enable their ultrasensitive detection in biological systems by time-resolved optical microscopy. However, most lanthanide-imaging systems cannot achieve sensitivities that exceed those of conventional fluorescence microscopes, since they are limit...

journal_title：Methods in enzymology

authors： Ciepla P,Cho U,Chen JK

更新日期：2020-01-01 00:00:00

abstract：:RNA folds during transcription in the cell. Compared to most in vitro studies where the focus is generally on Mg(2+)-initiated refolding of fully synthesized transcripts, cotranscriptional RNA folding studies better replicate how RNA folds in a cellular environment. Unique aspects of cotranscriptional folding include ...

journal_title：Methods in enzymology

authors： Wong TN,Pan T

更新日期：2009-01-01 00:00:00

abstract：:This article describes the methods and techniques used to produce mutagenized mice to conduct high-throughput forward genetic screens for circadian rhythm mutants in the mouse. In particular, we outline methods to safely prepare and administer the chemical mutagen N-nitroso-N-ethylurea (ENU) to mice. We also discuss t...

journal_title：Methods in enzymology

authors： Siepka SM,Takahashi JS

更新日期：2005-01-01 00:00:00

abstract：:A procedure for an in vitro signaling assay is described for the MAPK and NFkappaB pathways. The method uses a membrane-cleared lysate that contains all the soluble components required for activating these signaling cascades. The pathways can be activated by variety of molecules, including kinases, G-proteins, and E3 ...

journal_title：Methods in enzymology

authors： Mukherjee S,Orth K

更新日期：2008-01-01 00:00:00

abstract：:ADP-ribosylation is a protein post-translational modification that is critically involved in a wide array of biological processes connected to cell stress responses. Enzymes known as poly-ADP-ribose polymerases (PARPs) catalyze the addition of the ADP-ribose units to amino acids with various side chain chemistries. In...

journal_title：Methods in enzymology

authors： Li P,Zhen Y,Yu Y

更新日期：2019-01-01 00:00:00

abstract：:The protein kinase C (PKC) family of isoenzymes may be a crucial player in transducing H2O2-induced signaling in a wide variety of physiological and pathophysiological processes. PKCs contain unique structural features that make them highly susceptible to oxidative modification. Depending on the site of oxidation and ...

journal_title：Methods in enzymology

authors： Gopalakrishna R,McNeill TH,Elhiani AA,Gundimeda U

更新日期：2013-01-01 00:00:00

abstract：:In this chapter we have detailed a method that can be generalized to link virtually any DNA substrate to a chromatography matrix at its ends via an avidin-biotin linkage. We have used this technique to construct a left-handed Z-DNA column for the purpose of identification and purification of Z-DNA-binding proteins. Th...

journal_title：Methods in enzymology

authors： Fishel R,Anziano P,Rich A

更新日期：1990-01-01 00:00:00

abstract：:The Gene Expression Omnibus (GEO) repository at the National Center for Biotechnology Information archives and freely distributes high-throughput molecular abundance data, predominantly gene expression data generated by DNA microarray technology. The database has a flexible design that can handle diverse styles of bot...

journal_title：Methods in enzymology

authors： Barrett T,Edgar R

更新日期：2006-01-01 00:00:00

abstract：:As new organisms are being sequenced on a daily basis, new DNA glycosylases that recognize DNA damage can be easily identified in an effort to understand both their phylogenetics and substrate specificities. As a practical matter, existing bacterial and human homologs need to be readily available as laboratory reagent...

journal_title：Methods in enzymology

authors： Bandaru V,Blaisdell JO,Wallace SS

更新日期：2006-01-01 00:00:00

abstract：:Microtubule (MT)-based motor proteins transport many cellular factors to their functionally relevant locations within cells, and defects in transport are linked to human disease. Understanding the mechanism and regulation of this transport process in living cells is difficult because of the complex in vivo environment...

journal_title：Methods in enzymology

authors： Barak P,Rai A,Dubey AK,Rai P,Mallik R

更新日期：2014-01-01 00:00:00