S6 phosphorylation and the p70s6k/p85s6k.

abstract：:The lytic transglycosylases (LTs) are bacterial enzymes that catalyze the non-hydrolytic cleavage of the peptidoglycan structures of the bacterial cell wall. They are not catalysts of glycan synthesis as might be surmised from their name. Notwithstanding the seemingly mundane reaction catalyzed by the LTs, their lytic...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Dik DA,Marous DR,Fisher JF,Mobashery S

更新日期：2017-10-01 00:00:00

abstract：:Following a brief introduction of cellular response to stimulation comprising leukocyte activation, three major areas are discussed: (1) the neutrophil oxidase; (2) myeloperoxidase (MPO)-dependent oxidative microbicidal reactions; and (3) MPO-independent oxidative reactions. Topics included in section (A) are current ...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Hurst JK,Barrette WC Jr

更新日期：1989-01-01 00:00:00

abstract：:Clathrin constitutes the coat of vesicles involved in three receptor-mediated intracellular transport pathways; the export of aggregated material from the trans-Golgi network for regulated secretion, the transfer of lysosomal hydrolases from the trans-Golgi network to lysosomes and receptor-mediated endocytosis at the...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Pley U,Parham P

更新日期：1993-01-01 00:00:00

abstract：:Aldehydes are highly reactive molecules that may have a variety of effects on biological systems. They can be generated from a virtually limitless number of endogenous and exogenous sources. Although some aldehyde-mediated effects such as vision are beneficial, many effects are deleterious, including cytotoxicity, mut...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Lindahl R

更新日期：1992-01-01 00:00:00

abstract：:Transferrin is one of the sources of iron that is most readily available to colonizing and invading pathogens. In this review, we look at iron uptake by the bacterial transferrin receptor that is found in the families Neisseriaceae, Pasteurellaceae and Moraxellaceae. This bipartite receptor consists of the TonB-depend...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Pogoutse AK,Moraes TF

更新日期：2017-06-01 00:00:00

abstract：:The demonstration that ribosomal peptide synthesis is a ribozyme-catalyzed reaction makes it almost certain that there was once an RNA World. The central problem for origin-of-life studies, therefore, is to understand how a protein-free RNA World became established on the primitive Earth. We first review the literatur...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Orgel LE

更新日期：2004-03-01 00:00:00

abstract：:Small regulatory RNAs can modify the activity of proteins and the stability and translation of mRNAs. They have now been found in a wide range of organisms, and can play previously unsuspected critical regulatory roles. The bacterial small RNAs include two major classes. The largest family(with at least 20 members in ...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Majdalani N,Vanderpool CK,Gottesman S

更新日期：2005-03-01 00:00:00

abstract：:Aptamers are single-stranded structured oligonucleotides (DNA or RNA) that can bind to a wide range of targets ("apatopes") with high affinity and specificity. These nucleic acid ligands, generated from pools of random-sequence by an in vitro selection process referred to as systematic evolution of ligands by exponent...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Kanwar JR,Roy K,Kanwar RK

更新日期：2011-12-01 00:00:00

abstract：:Eukaryogenesis, the origin of the eukaryotic cell, represents one of the fundamental evolutionary transitions in the history of life on earth. This event, which is estimated to have occurred over one billion years ago, remains rather poorly understood. While some well-validated examples of fossil microbial eukaryotes ...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Koumandou VL,Wickstead B,Ginger ML,van der Giezen M,Dacks JB,Field MC

更新日期：2013-07-01 00:00:00

abstract：:This article is an overview of current research in the area of sulfate activation. Emphasis is placed on presenting unresolved issues in an appropriate context for critical evaluation by the reader. The energetics of sulfate activation is reevaluated in light of recent findings that demonstrate that the synthesis of a...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Leyh TS

更新日期：1993-01-01 00:00:00

abstract：:Our understanding of the fundamental regulatory roles that tyrosine phosphatases play within cells has advanced significantly in the last two decades. Out-dated ideas that tyrosine phosphatases acts solely as the "off" switch counterbalancing the action of tyrosine kinases has proved to be flawed. PTP1B is the most ch...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Feldhammer M,Uetani N,Miranda-Saavedra D,Tremblay ML

更新日期：2013-09-01 00:00:00

abstract：:Cilia and flagella serve as cellular antennae and propellers in various eukaryotic cells, and contain specific receptors and ion channels as well as components of axonemal microtubules and molecular motors to achieve their sensory and motile functions. Not only the bidirectional trafficking of specific proteins within...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Nakayama K,Katoh Y

更新日期：2020-04-01 00:00:00

abstract：:Every type of nucleic acid in cells may undergo some kind of post-replicative or post-transcriptional chemical modification. Recent evidence has highlighted their importance in biology and their chemical complexity. In the following pages, we will describe new discoveries of modifications, with a focus on tRNA and mRN...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Accornero F,Ross RL,Alfonzo JD

更新日期：2020-12-01 00:00:00

abstract：:The mevalonate-isoprenoid-cholesterol biosynthesis pathway plays a key role in human health and disease. The importance of this pathway is underscored by the discovery that two major isoprenoids, farnesyl and geranylgeranyl pyrophosphate, are required to modify an array of proteins through a process known as protein p...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Jeong A,Suazo KF,Wood WG,Distefano MD,Li L

更新日期：2018-06-01 00:00:00

abstract：:Proper and timely regulation of cellular processes is fundamental to the overall health and viability of organisms across all kingdoms of life. Thus, organisms have evolved multiple highly dynamic and complex biochemical signaling cascades in order to adapt and survive diverse challenges. One such method of conferring...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Crawford K,Bonfiglio JJ,Mikoč A,Matic I,Ahel I

更新日期：2018-02-01 00:00:00

abstract：:This article summarizes all experimental facts concerning the cold denaturation of single-domain, multi-domain, and multimeric globular proteins in aqueous solutions with and without urea and guanidine hydrochloride. The facts obtained by various experimental techniques are analyzed thermodynamically and it is shown t...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Privalov PL

更新日期：1990-01-01 00:00:00

abstract：:Insulin-degrading enzyme (IDE) is a ubiquitous zinc peptidase of the inverzincin family, which has been initially discovered as the enzyme responsible for insulin catabolism; therefore, its involvement in the onset of diabetes has been largely investigated. However, further studies on IDE unraveled its ability to degr...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Tundo GR,Sbardella D,Ciaccio C,Grasso G,Gioia M,Coletta A,Polticelli F,Di Pierro D,Milardi D,Van Endert P,Marini S,Coletta M

更新日期：2017-10-01 00:00:00

abstract：:This review focuses on how microbes live on CO as a sole source of carbon and energy and with CO by generating carbon monoxide as a metabolic intermediate. The use of CO is a property of organisms that use the Wood-L jungdahl pathway of autotrophic growth. The review discusses when CO metabolism originated, when and h...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Ragsdale SW

更新日期：2004-05-01 00:00:00

abstract：:The spontaneous and unregulated polymerization of actin filaments is inhibited in cells by actin monomer-binding proteins such as profilin and Tbeta4. Eukaryotic cells and certain pathogens use filament nucleators to stabilize actin polymerization nuclei, whose formation is rate-limiting. Known filament nucleators inc...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Dominguez R

更新日期：2009-11-01 00:00:00

abstract：:Ribonucleases (RNases) are mediators in most reactions of RNA metabolism. In recent years, there has been a surge of new information about RNases and the roles they play in cell physiology. In this review, a detailed description of bacterial RNases is presented, focusing primarily on those from Escherichia coli and Ba...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Bechhofer DH,Deutscher MP

更新日期：2019-06-01 00:00:00

abstract：:Rapid advances in redox systems biology are creating new opportunities to understand complexities of human disease and contributions of environmental exposures. New understanding of thiol-disulfide systems have occurred during the past decade as a consequence of the discoveries that thiol and disulfide systems are mai...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Go YM,Jones DP

更新日期：2013-03-01 00:00:00

abstract：:Matrix metalloproteinases (MMPs) constitute a family of more than 20 endopeptidases. Identification of specific matrix and non-matrix components as MMP substrates showed that, aside from their initial role as extracellular matrix modifiers, MMPs play significant roles in highly complex processes such as the regulation...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Cauwe B,Van den Steen PE,Opdenakker G

更新日期：2007-05-01 00:00:00

abstract：:Serotonin receptors are the product of 15 distinct genes, 14 of which are G protein-coupled receptors. These receptors are expressed in a wide range of cell types, including distinct neuronal populations, and promote diverse functional responses in multiple organ systems. These receptors are important for mediating th...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Bohn LM,Schmid CL

更新日期：2010-12-01 00:00:00

abstract：:A protein is usually classified into one of the following five structural classes: alpha, beta, alpha + beta, alpha/beta, and zeta (irregular). The structural class of a protein is correlated with its amino acid composition. However, given the amino acid composition of a protein, how may one predict its structural cla...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Chou KC,Zhang CT

更新日期：1995-01-01 00:00:00

abstract：:RNA helicases represent a large family of proteins that have been detected in almost all biological systems where RNA plays a central role. They are ubiquitously distributed over a wide range of organisms and are involved in nuclear and mitochondrial splicing processes, RNA editing, rRNA processing, translation initia...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Lüking A,Stahl U,Schmidt U

更新日期：1998-01-01 00:00:00

abstract：:The plasma coagulation system in mammalian blood consists of a cascade of enzyme activation events in which serine proteases activate the proteins (proenzymes and procofactors) in the next step of the cascade via limited proteolysis. The ultimate outcome is the polymerization of fibrin and the activation of platelets,...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Smith SA,Travers RJ,Morrissey JH

更新日期：2015-01-01 00:00:00

abstract：:DNA damaging agents have been a cornerstone of cancer therapy for nearly a century. The discovery of many of these chemicals, particularly the alkylating agents, are deeply entwined with the development of poisonous materials originally intended for use in warfare. Over the last decades, their anti-proliferative effec...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Tsao N,Schärer OD,Mosammaparast N

更新日期：2021-01-12 00:00:00

abstract：:DNA double-strand breaks are highly toxic DNA lesions that cause genomic instability, if not efficiently repaired. RecQ helicases are a family of highly conserved proteins that maintain genomic stability through their important roles in several DNA repair pathways, including DNA double-strand break repair. Double-stra...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Keijzers G,Maynard S,Shamanna RA,Rasmussen LJ,Croteau DL,Bohr VA

更新日期：2014-11-01 00:00:00

abstract：:Receptor for advanced glycation end products (RAGE) is an immunoglobulin-like receptor present on cell surface. RAGE binds to an array of structurally diverse ligands, acts as a pattern recognition receptor (PRR) and is expressed on cells of different origin performing different functions. RAGE ligation leads to the i...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Jangde N,Ray R,Rai V

更新日期：2020-12-01 00:00:00

abstract：:The nicotinic acetylcholine receptor (nAcChR) is a ligand-gated ion channel found in the postsynaptic membranes of electric organs, at the neuromuscular junction, and at nicotinic cholinergic synapses of the mammalian central and peripheral nervous system. The nAcChR from Torpedo electric organ and mammalian muscle is...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Huganir RL,Miles K

更新日期：1989-01-01 00:00:00