Anti-inflammatory and cytoprotective properties of hydrogen sulfide.

abstract：:The JNKs (c-Jun N-terminal protein kinases) play important roles in a variety of physiological and pathological functions including induction of apoptosis. A major pathway by which JNKs are activated in response to apoptotic stimuli includes the GTP*Rac1-binding scaffold protein POSH (plenty of SH3s). POSH acts as a s...

journal_title：Methods in enzymology

authors： Xu Z,Greene LA

更新日期：2006-01-01 00:00:00

abstract：:Stable isotope tracers are widely used to quantify metabolic rates, and yet a limited number of studies have considered the impact of analytical error on estimates of flux. For example, when estimating the contribution of de novo lipogenesis, one typically measures a minimum of four isotope ratios, i.e., the precursor...

journal_title：Methods in enzymology

authors： Previs SF,Herath K,Castro-Perez J,Mahsut A,Zhou H,McLaren DG,Shah V,Rohm RJ,Stout SJ,Zhong W,Wang SP,Johns DG,Hubbard BK,Cleary MA,Roddy TP

更新日期：2015-01-01 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

authors： Liu X,Driskell RR,Engelhardt JF

更新日期：2006-01-01 00:00:00

abstract：:Mitochondria are considered one of the main sources of reactive oxygen species (ROS). The overgeneration of ROS can evoke an intracellular state of oxidative stress, leading to permanent cell damage. Thus, the intracellular accumulation of ROS may not only disrupt the functions of specific tissues and organs but also ...

journal_title：Methods in enzymology

authors： Wojtala A,Bonora M,Malinska D,Pinton P,Duszynski J,Wieckowski MR

更新日期：2014-01-01 00:00:00

abstract：:Regulator of G-protein signaling (RGS) domains bind directly to GTP-bound Galpha subunits and accelerate their intrinsic GTPase activity by up to several thousandfold. The selectivity of RGS proteins for individual Galpha subunits has been illustrated. Thus, the expression of RGS proteins can be used to inhibit signal...

journal_title：Methods in enzymology

authors： Hains MD,Siderovski DP,Harden TK

更新日期：2004-01-01 00:00:00

abstract：:Structure-based protein design is a powerful technique with great potential. Challenges in two areas limit performance: structure scoring and sequence-structure searching. Many of the functions used to describe the relationship between protein sequence and energy are computationally expensive to evaluate, and the spac...

journal_title：Methods in enzymology

authors： Negron C,Keating AE

更新日期：2013-01-01 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

authors： Veldhuis JD,Johnson ML

更新日期：1994-01-01 00:00:00

abstract：:The steady technical advances of nuclear magnetic resonance (NMR) over the past decades enabled a significant increase in the molecular size of protein particles that can be subjected to a structural and functional characterization in solution. The larger molecular weight of such proteins is accompanied with an increa...

journal_title：Methods in enzymology

authors： Michel E,Allain FH

更新日期：2015-01-01 00:00:00

abstract：:The identification of novel forms of O-linked glycosylation on epidermal growth factor and thrombospondin type 1 repeats, and their emerging functional significance, require the development of new methods for their analysis. This chapter describes detailed methods to analyze both the structure and the site of modifica...

journal_title：Methods in enzymology

authors： Nita-Lazar A,Haltiwanger RS

更新日期：2006-01-01 00:00:00

abstract：:Protein-protein interactions (PPIs) are universal to life and their study and understanding is critical to drug discovery and bioengineering efforts. Historically, X-ray crystallography, isothermal titration calorimetry and other biophysical methods have been used to study PPIs, but can be costly and are low throughpu...

journal_title：Methods in enzymology

authors： Charov K,Burkart MD

更新日期：2020-01-01 00:00:00

abstract：:Two-component signal transduction systems, composed of histidine kinases and response regulators, enable bacteria to sense, respond, and adapt to changes in their internal and external conditions. The importance of these signaling systems is reflected in their widespread distribution and prevalence in the bacterial ki...

journal_title：Methods in enzymology

authors： Laub MT,Biondi EG,Skerker JM

更新日期：2007-01-01 00:00:00

abstract：:Technical innovations in structural probing have drastically advanced the field of RNA structure analysis. These advances have led to parallel approaches developed in separate labs for analyzing RNA structure and dynamics. With the wealth of methodologies available, it can be difficult to determine which is best suite...

journal_title：Methods in enzymology

authors： Adams RL,Huston NC,Tavares RCA,Pyle AM

更新日期：2019-01-01 00:00:00

abstract：:Molecular mechanisms of dark-to-light state transitions in flavoprotein photoreceptors have been the subject of intense investigation. Blue-light sensing flavoproteins fall into three general classes that share aspects of their activation processes: LOV domains, BLUF proteins, and cryptochromes. In all cases, light-in...

journal_title：Methods in enzymology

authors： Yee EF,Chandrasekaran S,Lin C,Crane BR

更新日期：2019-01-01 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

authors： Sadamoto R,Niikura K,Monde K,Nishimura S

更新日期：2003-01-01 00:00:00

abstract：:In vitro assembly of eukaryotic translation initiation complexes requires purification of ribosomal subunits, eukaryotic initiation factors, and initiator tRNA from natural sources and therefore yields only limited material for functional and structural studies. In this chapter, we describe a robust, affinity chromato...

journal_title：Methods in enzymology

authors： Locker N,Lukavsky PJ

更新日期：2007-01-01 00:00:00

abstract：:Complex I is the major entry point in the bacterial and mitochondrial respiratory chain. Structural knowledge of the enzyme is still limited because of its large size and complicated architecture. Only the structure of the hydrophilic domain of a bacterial Complex I has been solved to high resolution by X-ray crystall...

journal_title：Methods in enzymology

authors： Radermacher M

更新日期：2009-01-01 00:00:00

abstract：:The method presented here is intended as a compromise between finding a good overall alignment and the time taken to do so. Many multiple alignment algorithms spend an excessively large amount of effort trying to find the best global alignment. This time is often ill spent because the results of the standard dynamic p...

journal_title：Methods in enzymology

authors： Taylor WR

更新日期：1990-01-01 00:00:00

abstract：:The aminocoumarin antibiotics novobiocin, clorobiocin and coumermycin A(1) are formed by different Streptomyces strains and are potent inhibitors of bacterial gyrase. Their biosynthetic gene clusters have been analyzed in detail by genetic and biochemical investigations. Heterologous expression of these gene clusters ...

journal_title：Methods in enzymology

authors： Heide L

更新日期：2009-01-01 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

authors： Kerber T,Vrielink A

更新日期：2020-01-01 00:00:00

abstract：:The aim of this chapter is to discuss the basic principles and reasoning behind elementary flux mode analysis (EFM analysis)--an important tool for the analysis of metabolic networks. We begin with a short introduction into metabolic pathway analysis and subsequently outline in detail fundamentals of EFM analysis by w...

journal_title：Methods in enzymology

authors： Schäuble S,Schuster S,Kaleta C

更新日期：2011-01-01 00:00:00

abstract：:Sedimentation velocity experiments measure the transport of molecules in solution under centrifugal force. Here, we describe a method for monitoring the sedimentation of very large biological molecular assemblies using the interference optical systems of the analytical ultracentrifuge. The mass, partial-specific volum...

journal_title：Methods in enzymology

authors： Rogge RA,Hansen JC

更新日期：2015-01-01 00:00:00

abstract：:In cultured tobacco (BY-2) cells, autophagy seems to be induced under nutrient-starvation conditions, whereas in root cells from Arabidopsis and barley, it occurs constitutively though is activated under nutrient starvation conditions. In both cases, protease inhibitors such as E-64, E-64c, antipain, and leupeptin blo...

journal_title：Methods in enzymology

authors： Moriyasu Y,Inoue Y

更新日期：2008-01-01 00:00:00

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

authors： Chen CY,Sakisaka T,Balch WE

更新日期：2005-01-01 00:00:00

abstract：:Fragment-based drug discovery has emerged over the past 15 years as an effective lead discovery paradigm that is complementary to traditional high-throughput screening. The starting point for fragment-based drug discovery is the identification of low-molecular weight, typically low-affinity compounds that bind to a ta...

journal_title：Methods in enzymology

authors： Desjarlais RL

更新日期：2011-01-01 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

authors： Friedman DB,Hoving S,Westermeier R

更新日期：2009-01-01 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

authors： Lane AN,Lefèvre JF

更新日期：1994-01-01 00:00:00

abstract：:Rab38 is a low-molecular-weight G-protein highly expressed in melanocytes of the skin and alveolar type II cells in the lung. A point mutation in the postulated GTP/GDP-interacting domain of Rab38 has been identified as the genetic lesion responsible for oculocutaneous albinism (OCA) in chocolate (cht) mice. Another p...

journal_title：Methods in enzymology

authors： Osanai K,Voelker DR

更新日期：2008-01-01 00:00:00

abstract：:Ras proteins are small GTPases that exhibit high-affinity binding to GDP and GTP and hydrolyze bound GTP to GDP. The intrinsic GTPase activity of Ras proteins is accelerated by GTPase activating proteins (GAPs), which act to attenuate GTPase signaling by accelerating the conversion of bound GTP to bound GDP. Tumor-ass...

journal_title：Methods in enzymology

authors： Shutes A,Der CJ

更新日期：2006-01-01 00:00:00

abstract：:Staphylococcus aureus ribonuclease III (Sa-RNase III) belongs to the enzyme family known to process double-stranded RNAs consisting of two turns of the RNA helix. Although the enzyme is thought to play a role in ribosomal RNA processing and gene regulation, the deletion of the rnc gene in S. aureus does not affect cel...

journal_title：Methods in enzymology

authors： Chevalier C,Huntzinger E,Fechter P,Boisset S,Vandenesch F,Romby P,Geissmann T

更新日期：2008-01-01 00:00:00

abstract：:The study of model organisms in pure culture has provided detailed information about the physiology and biochemistry of nitrification and related processes. Metagenomic sequencing of environmental samples is providing information to what extent this understanding also applies to natural microbial communities. Here, we...

journal_title：Methods in enzymology

authors： Müller S,Strous M

更新日期：2011-01-01 00:00:00