Metabolic regulation via enzyme filamentation.

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：:Type 1 protein phosphatases (PP-1) comprise a group of widely distributed enzymes that specifically dephosphorylate serine and threonine residues of certain phosphoproteins. They all contain an isoform of the same catalytic subunit, which has an extremely conserved primary structure. One of the properties of PP-1 that...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Bollen M,Stalmans W

更新日期：1992-01-01 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：:Some asparagine and glutamine residues in proteins undergo deamidation to aspartate and glutamate with rates that depend upon the sequence and higher-order structure of the protein. Functional groups within the protein can catalyze this reaction, acting as general acids, bases, or stabilizers of the transition state. ...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Wright HT

更新日期：1991-01-01 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：:As we learn more about the biology of the Toll-like receptors (TLRs), a wide range of molecules that can activate this fascinating family of pattern recognition receptors emerges. In addition to conserved pathogenic components, endogenous danger signals created upon tissue damage are also sensed by TLRs. Detection of ...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Bryant CE,Gay NJ,Heymans S,Sacre S,Schaefer L,Midwood KS

更新日期：2015-01-01 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：: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：:Torsin ATPases (Torsins) belong to the widespread AAA+ (ATPases associated with a variety of cellular activities) family of ATPases, which share structural similarity but have diverse cellular functions. Torsins are outliers in this family because they lack many characteristics of typical AAA+ proteins, and they are t...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Rose AE,Brown RS,Schlieker C

更新日期：2015-01-01 00:00:00

abstract：:Fibronectin is a large vertebrate glycoprotein that is found in soluble and insoluble forms and involved in diverse processes. Protomeric fibronectin is a dimer of subunits, each of which comprises 29-31 modules - 12 type I, two type II and 15-17 type III. Plasma fibronectin is secreted by hepatocytes and circulates i...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Maurer LM,Ma W,Mosher DF

更新日期：2015-07-01 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：: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：: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：:Ribonucleotides are the most abundant non-canonical nucleotides in the genome. Their vast presence and influence over genome biology is becoming increasingly appreciated. Here we review the recent progress made in understanding their genomic presence, incorporation characteristics and usefulness as biomarkers for poly...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Zhou ZX,Williams JS,Lujan SA,Kunkel TA

更新日期：2021-02-01 00:00:00

abstract：:All living organisms depend on dynamic mechanisms that repeatedly reassess the status of amassed energy, in order to adapt energy supply to demand. The AMP-activated protein kinase (AMPK) alphabetagamma heterotrimer has emerged as an important integrator of signals managing energy balance. Control of AMPK activity inv...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Viollet B,Horman S,Leclerc J,Lantier L,Foretz M,Billaud M,Giri S,Andreelli F

更新日期：2010-08-01 00:00:00

abstract：:HEPN (Higher Eukaryotes and Prokaryotes Nucleotide-binding) RNases are an emerging class of functionally diverse RNA processing and degradation enzymes. Members are defined by a small α-helical bundle encompassing a short consensus RNase motif. HEPN dimerization is a universal requirement for RNase activation as the c...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Pillon MC,Gordon J,Frazier MN,Stanley RE

更新日期：2021-02-01 00:00:00

abstract：:One of the experimental platforms to study programs increasing genetic diversity in cells under stressful or nondividing conditions is adaptive mutagenesis, also called stationary phase mutagenesis or stress-induced mutagenesis. In some model systems, there is evidence that mutagenesis occurs in genes that are activel...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Robleto EA,Yasbin R,Ross C,Pedraza-Reyes M

更新日期：2007-09-01 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：: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：:The eukaryotic MCM2-7 complex is recruited onto origins of replication during the G1 phase of the cell cycle and acts as the main helicase at the replication fork during the S phase. Over the last few years a number of structural reports on MCM proteins using both electron microscopy and protein crystallography have b...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Costa A,Onesti S

更新日期：2009-09-01 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：: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：: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：:Renin, the first enzyme in the renin-angiotensin system, is critically important for the maintenance of blood pressure, and, therefore, as a target for antihypertensive therapy. The three-dimensional structure of renin would be an invaluable aid in understanding the functional properties of renin as well as in the des...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Hutchins C,Greer J

更新日期：1991-01-01 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：: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：:S-Acylation (commonly referred to as S-palmitoylation) is a post-translational modification consisting in the covalent attachment of an acyl chain to a cysteine residue of the target protein. The lability of the resulting thioester bond gives S-acylation an essential characteristic: its reversibility. S-acylation dyna...

journal_title：Critical reviews in biochemistry and molecular biology

authors： Zaballa ME,van der Goot FG

更新日期：2018-08-01 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：: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