Abstract:
:The specificity of CRISPR-Cas systems for nucleic acid targets is determined by a combination of binding and cleavage. Understanding the mechanisms by which Cas proteins specifically select their targets is critical for the development of CRISPR-Cas systems for biotechnology applications. Moreover, the specificity of CRISPR-Cas systems plays an important role in prokaryote evolution due to its role in distinguishing self from nonself. Here, I describe Library-ChIP, a high-throughput method for measuring Cas protein occupancy at many DNA sequence variants in a native prokaryotic host. Library-ChIP can be used to identify the determinants of specificity for Cas protein binding to nucleic acid targets.
journal_name
Methods Enzymoljournal_title
Methods in enzymologyauthors
Wade JTdoi
10.1016/bs.mie.2018.10.019subject
Has Abstractpub_date
2019-01-01 00:00:00pages
117-132eissn
0076-6879issn
1557-7988pii
S0076-6879(18)30434-8journal_volume
616pub_type
杂志文章abstract::Neurofilament biology is important to understanding structural properties of axons, such as establishment of axonal diameter by radial growth. In order to study the function of neurofilaments, a series of genetically modified mice have been generated. Here, we describe a brief history of genetic modifications used to ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2015.07.027
更新日期:2016-01-01 00:00:00
abstract::Phospholipase A(2)s (PLA(2)s) are a superfamily of enzymes involved in production of a wide variety of lipid mediators, including arachidonic acid, lysophospholipids, platelet activation factor, and eicosanoids. Fluorescence-based, real-time cellular activity assays for PLA(2)s have been developed as a tool for studyi...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(07)34002-0
更新日期:2007-01-01 00:00:00
abstract::Focal radiation therapy has the potential to generate systemic tumor-targeting immune responses so potent as to eradicate anatomically distant, non-irradiated malignant lesions, a phenomenon commonly referred to as "the abscopal response." In cancer patients, bona fide abscopal responses are rare, although the recent ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2019.04.014
更新日期:2020-01-01 00:00:00
abstract::Primary mixed liver cells were isolated from rats that had been fed an amino acid (AA) diet in which natural protein was replaced with a defined mixture of pure AAs. Nitric oxide (NO) production from these cells in vitro was monitored using a nitric oxide (NO)-selective fluorescent probe, diaminofluorescein, followed ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(05)96045-X
更新日期:2005-01-01 00:00:00
abstract::In vivo genome manipulation through site-directed mutagenesis and chromosome rearrangements has been hindered by the difficulty in achieving high frequencies of targeting and the intensive labor required to create altered genomes that do not contain any heterologous sequence. Here we describe our approach, referred to...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(05)09019-1
更新日期:2006-01-01 00:00:00
abstract::Biominerals have complex and heterogeneous architectures, hence diffraction experiments with spatial resolutions between 500 nm and 10 μm are extremely useful to characterize them. X-ray beams in this size range are now routinely produced at many synchrotrons. This chapter provides a review of the different hard X-ray...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/B978-0-12-416617-2.00021-7
更新日期:2013-01-01 00:00:00
abstract::ClpB belongs to the Hsp100 family of ring-forming heat-shock proteins involved in degradation of unfolded/misfolded proteins and in reactivation of protein aggregates. ClpB monomers reversibly associate to form the hexameric molecular chaperone that, together with the DnaK system, has the ability to disaggregate stres...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2015.04.007
更新日期:2015-01-01 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
pub_type: 杂志文章
doi:10.1016/bs.mie.2014.12.021
更新日期:2015-01-01 00:00:00
abstract::The mapping and characterization of the vasculature using proteomics offers the opportunity to better understand the steps and molecular mechanisms involved in vascular development, and angiogenesis in particular. Proteomics has many key advantages over genomics, especially in directly determining protein expression. ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(08)03008-5
更新日期:2008-01-01 00:00:00
abstract::Granzyme B (GrB) is the primary molecular mediator of apoptosis by cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells. It is a unique mammalian aspartic acid-cleaving serine protease. On T cell receptor activation, GrB is released from the CTL cytoplasmic granules by exocytosis, enters the target cells and, ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(00)22013-2
更新日期:2000-01-01 00:00:00
abstract::Histone acetylation is a dynamic epigenetic modification that functions in the regulation of DNA-templated reactions, such as transcription. This lysine modification is reversibly controlled by histone (lysine) acetyltransferases and deacetylases. Here, we present methods employing isotopic labeling and mass spectrome...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2016.01.007
更新日期:2016-01-01 00:00:00
abstract::Gas chromatography-mass spectrometry (GC-MS) is one of the three most popular analytical platforms for metabolomics and is largely employed for the study of oncometabolism. Large volumes of data are usually generated in a GC-MS experiment, and many analytical steps are required to extract biologically relevant informa...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-801329-8.00016-7
更新日期:2014-01-01 00:00:00
abstract::There is a great need for practicing scientists to volunteer their time and expertise in the K-12th grade science classroom. We have found that bioluminescence is a fun and exciting way to teach basic science concepts and is an excellent tool for the volunteering scientist. We have had very positive reactions from bot...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(00)05517-8
更新日期:2000-01-01 00:00:00
abstract::Natural products continue to demonstrate their utility both as therapeutics and as molecular probes for the discovery and mechanistic deconvolution of various cellular processes. However, this utility is dampened by the inherent difficulties involved in isolating and characterizing new bioactive natural products, in o...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(07)31014-8
更新日期:2007-01-01 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
pub_type: 杂志文章
doi:10.1016/S0076-6879(09)05409-3
更新日期:2009-01-01 00:00:00
abstract::The gasdermin (GSDM) family consists of gasdermin A (GSDMA), B (GSDMB), C (GSDMC), D (GSDMD), E or DNFA5 (GSDME), and DFNB59 in human. Expressed in the skin, gastrointestinal tract, and various immune cells, GSDMs mediate homeostasis and inflammation upon activation by caspases and unknown proteases. In particular, GS...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2019.04.024
更新日期:2019-01-01 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
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(06)11019-8
更新日期:2006-01-01 00:00:00
abstract::In polarized epithelial cells, the tight junction has been ascribed several functions including the regulation of the paracellular permeability, an impediment to the diffusion of molecules between the apical and basolateral domains, a site of delivery of transport vesicles for basolateral proteins, and a scaffold for ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(05)04029-2
更新日期:2005-01-01 00:00:00
abstract::Research on circadian biology over the past decade has paid increasing attention to the photoreceptor mechanisms that align the molecular clock to the 24-h light/dark cycle, and some of the results to emerge are surprising. For example, the rods and cones within the mammalian eye are not required for entrainment. A po...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(05)93037-1
更新日期:2005-01-01 00:00:00
abstract::Heterodimeric complexes between individual members of the R7 subfamily of regulators of G-protein signaling proteins and the Gbeta5 isoform of the heterotrimeric G-protein beta subunit family are strongly expressed in the cell nucleus in neurons and brain, as well as in the cytoplasm and plasma membrane. Native and re...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(04)90014-6
更新日期:2004-01-01 00:00:00
abstract::Genetically encoded fluorescent sensors are essential tools in modern biological research, and recent advances in fluorescent proteins (FPs) have expanded the scope of sensor design and implementation. In this review we compare different sensor platforms, including Förster resonance energy transfer (FRET) sensors, flu...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/bs.mie.2017.01.019
更新日期:2017-01-01 00:00:00
abstract::Using the expression strategies described here, we have demonstrated a model system whereby the sequential signaling events involved in cell proliferation and subsequent transformation regulated by G alpha 12 can be investigated. The model system presented here can also be used to study the temporal interrelationships...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(02)44722-2
更新日期:2002-01-01 00:00:00
abstract::Mathematical computer-assisted simulations of episodic hormone, substrate, or metabolite release can be accomplished using explicit algebra and high-speed microprocessors. Such simulations are useful to describe the behavior of single or multiple pulse generators, as well as the expected output of these systems. Simul...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(94)40056-3
更新日期:1994-01-01 00:00:00
abstract::Antibodies will be immobilized on a cyanogen bromide-activated Sepharose for subsequent use in pull-down assays or immunoaffinity purification. ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-420119-4.00003-3
更新日期:2014-01-01 00:00:00
abstract::Adiponectin is a circulating bioactive hormone secreted by adipocytes as oligomers ranging in size from 90 kDa trimers and 180 kDa hexamers to larger high molecular weight oligomers that may reach 18- or 36-mers in size. While total circulating adiponectin levels correlate well with metabolic health, it is the relativ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-411619-1.00013-6
更新日期:2014-01-01 00:00:00
abstract::G-protein-coupled receptors (GPCRs) initiate signaling pathways via trimetric guanine nucleotide-binding proteins. GPCRs are classified based on their ligand-binding properties and molecular phylogenetic analyses. Nonetheless, these later analyses are in most case dependent on multiple sequence alignments, themselves ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-407865-9.00004-2
更新日期:2013-01-01 00:00:00
abstract::Histone chaperones-key actors in the dynamic organization of chromatin-interact with the various histone variants to ensure their transfer in and out of chromatin. In vitro chromatin assembly assays and isolation of protein complexes using tagged histone variants provided first clues concerning their binding specifici...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2016.04.004
更新日期:2016-01-01 00:00:00
abstract::One of the most widely employed methods in metagenomics is the amplification and sequencing of the highly conserved ribosomal RNA (rRNA) genes from organisms in complex microbial communities. rRNA surveys, typically using the 16S rRNA gene for prokaryotic identification, provide information about the total diversity a...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-407863-5.00018-6
更新日期:2013-01-01 00:00:00
abstract::The neutral arachidonic acid derivatives N-arachidonoyl ethanolamine (anandamide or AEA), and 2-arachidonoylglycerol (2-AG) have been identified as endogenous ligands for the cannabinoid receptors. Additionally, these compounds have been identified as substrates of the second isoform of the cyclooxygenase enzyme (COX-...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(07)33005-X
更新日期:2007-01-01 00:00:00
abstract::This protocol describes the expression and analysis of membrane proteins produced in yeast, as illustrated with Yarrowia lipolytica and Pichia pastoris. Step by step, we explain how to generate a yeast strain expressing the membrane protein of interest, how to prepare a membrane protein sample from yeast, and how to a...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2014.12.010
更新日期:2015-01-01 00:00:00