Abstract:
:The cell membrane isolation procedure we developed here can be scaled up from four to several hundred plates of cultured cells. Transmission electron microscopy, membrane marker enzyme analysis, binding study, EGF-dependent receptor autophosphorylation, and Western blots all demonstrate the biological activity of the purified cell membranes. The membrane purification procedure has been adapted by others in assessing EGF kinase activity and has been used for the purification of cell membranes from other types of cultured cells.
journal_name
Methods Enzymoljournal_title
Methods in enzymologyauthors
Lin PH,Selinfreund R,Wharton Wdoi
10.1016/0076-6879(91)98026-3subject
Has Abstractpub_date
1991-01-01 00:00:00pages
251-9eissn
0076-6879issn
1557-7988pii
0076-6879(91)98026-3journal_volume
198pub_type
杂志文章abstract::Guanine nucleotide dissociation inhibitor (GDI) is a central regulator of Rab GTPase family members. GDI recycles Rab proteins from the membrane and sequesters the inactive GDP-bound form of Rab in the cytosol for use in multiple rounds of transport. The balance between the membrane-bound form of Rab and the cytosolic...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(05)03029-6
更新日期:2005-01-01 00:00:00
abstract::kappaB-Ras1 and kappaB-Ras2 are two small proteins that display similarity at the amino acid level to Ras-like small GTPases. Although little is known about the function of the kappaB-Ras proteins, they have been shown to interfere with activation of transcription factor NF-kappaB. They accomplish this by binding to I...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(05)07042-4
更新日期:2006-01-01 00:00:00
abstract::Flavoenzymes comprise a large class of proteins that carry out a diverse range of important redox chemistry. Although X-ray crystal structures of many flavoenzymes have been determined, there are still unresolved questions regarding the actual oxidation state of the flavin cofactors in these structures due to photored...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2019.12.004
更新日期:2020-01-01 00:00:00
abstract::The three-dimensional (3D) organization of the genome is important for chromatin regulation. This organization is nonrandom and appears to be tightly correlated with or regulated by chromatin state and scaffolding proteins. To understand how specific DNA and chromatin elements contribute to the functional organization...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2015.09.028
更新日期:2016-01-01 00:00:00
abstract::The current treatment of neurological and psychiatric diseases is far beyond being satisfactory. In addition to highly complex disease mechanisms, the blood-brain barrier (BBB) also remains as a challenge by limiting the delivery of the majority of currently available therapeutics to the central nervous system. Severa...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-391860-4.00013-6
更新日期:2012-01-01 00:00:00
abstract::The major facilitator superfamily (MFS) is a diverse group of secondary transporters with members found in all kingdoms of life. The paradigm for MFS is the lactose permease (LacY) of Escherichia coli, which has been the test bed for the development of many methods applied for the analysis of transport proteins. X-ray...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2014.12.015
更新日期:2015-01-01 00:00:00
abstract::Integrin adhesion receptors mediate cell-cell and cell-substratum adhesion and provide a continuous link for the bidirectional transmission of mechanical force and biochemical signals across the plasma membrane. Integrin-dependent cellular activities such as adhesion, migration, proliferation, and survival rely upon t...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(07)26004-5
更新日期:2007-01-01 00:00:00
abstract::Since the onset of the genomic era more than 1000 bacterial genomes have been sequenced and several fold more are expected to be completed in the near future. These genome sequences supply a wealth of information that can be exploited by statistical methods to gain significant insights into cellular processes. In Volu...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(10)71002-8
更新日期:2010-01-01 00:00:00
abstract::We have developed a genetic system, termed IVET (in vivo expression technology), designed to identify bacterial genes that are induced when a pathogen infects its host. A subset of these induced genes should include those that encode virulence factors, products specifically required for the infection process. The syst...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/0076-6879(94)35164-3
更新日期:1994-01-01 00:00:00
abstract::We describe a method for molecular confinement and single-fluorophore sensitive measurement in aqueous nanodroplets in oil. The sequestration of individual molecules in droplets has become a useful tool in genomics and molecular evolution. Similarly, the use of single fluorophores, or pairs of fluorophores, to study b...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(10)72015-2
更新日期:2010-01-01 00:00:00
abstract::Gene therapy vectors based on murine retroviruses have now been in clinical trials for over 20 years. During that time, a variety of novel vector pseudotypes were developed in an effort to improve gene transfer. Lentiviral vectors are now in clinical trials and a similar evolution of vector technology is anticipated. ...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-386509-0.00005-3
更新日期:2012-01-01 00:00:00
abstract::The remarkable success of cancer immunotherapies, especially the checkpoint blocking antibodies, in a subset of patients has reinvigorated the study of tumor-immune crosstalk and its role in heterogeneity of response. High-throughput sequencing and imaging technologies can help recapitulate various aspects of the tumo...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2020.01.001
更新日期:2020-01-01 00:00:00
abstract::Cell wall precursors that have been modified at their peptide moiety were incorporated into the living bacterial cell wall. Using chemically synthesized bacterial cell wall precursors, a variety of compounds could be attached to the bacterial surface. Escherichia coli took the modified precursors into the cell wall af...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(03)01019-x
更新日期:2003-01-01 00:00:00
abstract::In eukaryotes, determination of the subcellular location of a novel protein encoded in genomic or transcriptomic data provides useful clues as to its possible function. However, experimental localization studies are expensive and time-consuming. As a result, accurate in silico prediction of subcellular localization fr...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(09)05002-2
更新日期:2009-01-01 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
pub_type: 杂志文章
doi:10.1016/B978-0-12-397924-7.00013-3
更新日期:2014-01-01 00:00:00
abstract::Neurons are probably the most highly polarized cell type and typically develop a single axon and several dendrites. The establishment of a polarized morphology and the functional specialization of axonal and dendritic compartments are essential steps in the differentiation of neurons. Primary cultures of dissociated h...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(06)06056-3
更新日期:2006-01-01 00:00:00
abstract::The Microsealed Drug Delivery (MDD) system was developed to achieve several objectives: to maximize the bioavailability of a therapeutic agent in a target tissue; to minimize the adverse side effects of a therapeutic agent or its metabolites; to optimize the onset, rate, and duration of drug delivery; to maintain the...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(85)12036-7
更新日期:1985-01-01 00:00:00
abstract::DNA repair complexes play crucial roles in maintaining genome integrity, which is essential for the survival of an organism. The understanding of their modes of action is often obscure due to limited structural knowledge. Structural characterizations of these complexes are often challenging due to a poor protein produ...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/bs.mie.2017.03.010
更新日期:2017-01-01 00:00:00
abstract::The lung is composed of two major anatomically distinct regions-the conducting airways and gas-exchanging airspaces. From a cell biology standpoint, the conducting airways can be further divided into two major compartments, the tracheobronchial and bronchiolar airways, while the alveolar regions of the lung make up th...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(06)19012-6
更新日期:2006-01-01 00:00:00
abstract::Although the use of monoclonal antibodies to characterize the Ia antigen system is still in its infancy, the usefulness of this approach is clearly apparent. Since xenogeneic immunization can be used to generate these antibodies, the chances are good that a greater variety of Ia types and determinants will be detected...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/0076-6879(83)92010-4
更新日期:1983-01-01 00:00:00
abstract::The combined use of rotating-frame relaxation methods, temperature-dependent measurements of line shapes and magnetization transfer experiments allows in favorable cases the examination in some detail of exchange processes that occur on the millisecond time scale. It is possible to determine not only the rate constant...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/s0076-6879(94)39023-1
更新日期:1994-01-01 00:00:00
abstract::Nonsense-mediated mRNA decay (NMD) is activated by exon-junction complexes (EJCs) that are located downstream of the termination codon of the substrate mRNAs. This situation can be imitated by tethering components of the EJC to the 3' untranslated region (3' UTR) of a reporter mRNA. Here we describe the detailed use o...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(08)02623-2
更新日期:2008-01-01 00:00:00
abstract::There is now considerable experimental evidence that aberrant activation of Rho family small GTPases promotes uncontrolled proliferation, invasion, and metastatic properties of human cancer cells. Therefore, there is considerable interest in the development of small molecule inhibitors of Rho GTPase function. However,...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/S0076-6879(07)00409-0
更新日期:2008-01-01 00:00:00
abstract::Determination of the three-dimensional structures of the globins led to the problem of determining how the ligands bound to the heme. In many of these structures there was no clear path from the solvent to the ligand-binding site. Even in those structures that appeared to have one or more tunnels from the exterior to ...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(07)37021-3
更新日期:2008-01-01 00:00:00
abstract::Differential scanning calorimetry (DSC) detects protein thermal unfolding by directly measuring the heat absorbed. Simple DSC experiments that require relatively small amounts of pure material can provide a wealth of information related to structure, especially with respect to domain architecture, without the need for...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/bs.mie.2015.08.014
更新日期:2016-01-01 00:00:00
abstract::In this chapter we have discussed the methodology used to identify and characterize three intermediates in protein transport from the ER that represent stages of transport vesicle budding, targeting, and fusion. The intermediates are obtained using a variety of transport inhibitors: low-temperature incubations, additi...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/0076-6879(92)19028-5
更新日期:1992-01-01 00:00:00
abstract::This chapter provides the methodologies employed to study the polymorphism of human apoE. These and other related studies have advanced our understanding of the structure and function of this protein as follows: The complex array of human apoE observed by two-dimensional gel electrophoresis results from genetic variat...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/0076-6879(86)28109-4
更新日期:1986-01-01 00:00:00
abstract::RNA and DNA carry out diverse functions in biology including catalysis, splicing, gene regulation, and storage of genetic information. Interest has grown in understanding how nucleic acids perform such sophisticated functions given their limited molecular repertoire. RNA can fold into diverse shapes that often perturb...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/B978-0-12-801122-5.00009-X
更新日期:2014-01-01 00:00:00
abstract::By far the highest resolution of all separation techniques for intact proteins in a single analytical run continues to be by the combination of isoelectric focusing (IEF) and SDS-PAGE, originally introduced by O'Farrell [(1975). J. Biol. Chem.250, 4007-4021]. This analytical platform has seen a number of significant a...
journal_title:Methods in enzymology
pub_type: 杂志文章,评审
doi:10.1016/S0076-6879(09)63030-5
更新日期:2009-01-01 00:00:00
abstract::This study designed, synthesized, and characterized a number of new heterobifunctional photocleavable cross-linking reagents that may be used to photomodulate the activity of proteins or to prepare caged fluorescent dyes. Biomolecules or fluorophores caged via a thiol group with the BNBASE reagent can be covalently li...
journal_title:Methods in enzymology
pub_type: 杂志文章
doi:10.1016/s0076-6879(98)91012-6
更新日期:1998-01-01 00:00:00