Bacterial peptide chain release factors: conserved primary structure and possible frameshift regulation of release factor 2.

abstract：:A hallmark of rheumatoid arthritis is the formation of an aggressive, tumor-like structure called pannus that erodes the joint. A major cellular component of the pannus is the fibroblast-like synoviocyte (FLS), whose morphology strikingly resembles that of a transformed cell, but underlying mechanisms of this "transfo...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Li X,Makarov SS

更新日期：2006-11-14 00:00:00

abstract：:Social behavior is often shaped by the rich storehouse of biographical information that we hold for other people. In our daily life, we rapidly and flexibly retrieve a host of biographical details about individuals in our social network, which often guide our decisions as we navigate complex social interactions. Even ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wang Y,Collins JA,Koski J,Nugiel T,Metoki A,Olson IR

更新日期：2017-04-18 00:00:00

abstract：:We report dynamic glycoprotein recognition of gels prepared by biomolecular imprinting using lectin and antibody molecules as ligands for tumor-specific marker glycoproteins. The glycoprotein-imprinted gels prepared with minute amounts of cross-linkers could dynamically recognize tumor-specific marker glycoproteins by...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Miyata T,Jige M,Nakaminami T,Uragami T

更新日期：2006-01-31 00:00:00

abstract：:We show that a large class of finite factors has free entropy dimension less than or equal to one. This class includes all prime factors and many property T factors. ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ge L,Shen J

更新日期：2000-08-29 00:00:00

abstract：:There are numerous studies on the immune response against malignant human tumors. This study was aimed to address the complexity and specificity of humoral immune response against a benign human tumor. We assembled a panel of 62 meningioma-expressed antigens that show reactivity with serum antibodies of meningioma pat...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Comtesse N,Zippel A,Walle S,Monz D,Backes C,Fischer U,Mayer J,Ludwig N,Hildebrandt A,Keller A,Steudel WI,Lenhof HP,Meese E

更新日期：2005-07-05 00:00:00

abstract：:Ferroelectricity and antiferroelectricity are widely seen in various types of condensed matter and are of technological significance not only due to their electrical switchability but also due to intriguing cross-coupling effects such as electro-mechanical and electro-caloric effects. The control of the two types of d...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Takae K,Tanaka H

更新日期：2018-10-02 00:00:00

abstract：:Early forms of the genetic code likely generated "statistical" proteins, with similar side chains occupying the same sequence positions at different ratios. In this scenario, groups of related side chains were treated by aminoacyl-tRNA synthetases as a single molecular species until a discrimination mechanism develope...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Yang XL,Otero FJ,Skene RJ,McRee DE,Schimmel P,Ribas de Pouplana L

更新日期：2003-12-23 00:00:00

abstract：:Mimivirus, a DNA virus infecting acanthamoeba, was for a long time the largest known virus both in terms of particle size and gene content. Its genome encodes 979 proteins, including the first four aminoacyl tRNA synthetases (ArgRS, CysRS, MetRS, and TyrRS) ever found outside of cellular organisms. The discovery that ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Arslan D,Legendre M,Seltzer V,Abergel C,Claverie JM

更新日期：2011-10-18 00:00:00

abstract：:The recent cloning of a second member of the nerve growth factor family, brain-derived neurotrophic factor (BDNF), has prompted investigation into the cells that express this factor's mRNA and protein. In the present study, antibodies raised against unique peptide sequences within the porcine BDNF protein detect BDNF-...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wetmore C,Cao YH,Pettersson RF,Olson L

更新日期：1991-11-01 00:00:00

abstract：:The mouse skeletal muscle acetylcholine receptor is regulated, at least in part, by transcriptional mechanisms. As a first step toward defining the cis- and trans-acting factors involved in acetylcholine receptor transcriptional regulation, we examined mouse muscle and fibroblast cells for the presence of DNase I-hype...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Crowder CM,Merlie JP

更新日期：1986-11-01 00:00:00

abstract：:We report here that component members of the keratin intermediate filament (IF) type I and type II gene families of sheep are closely linked but apparently the two families are not. Nine genes, accounting for up to half of the keratin IF gene repertoire, were mapped in four cosmid clones and the linkage between the ge...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Powell BC,Cam GR,Fietz MJ,Rogers GE

更新日期：1986-07-01 00:00:00

abstract：:We describe a method for predicting the structure of alpha beta class proteins in the absence of information from homologous structures. The method is based on an associative memory model for short to intermediate range in sequence contacts and a contact potential for long range in sequence contacts. The coefficients ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Hardin C,Eastwood MP,Prentiss MC,Luthey-Schulten Z,Wolynes PG

更新日期：2003-02-18 00:00:00

abstract：:Endocrine therapy resistance invariably develops in advanced estrogen receptor-positive (ER+) breast cancer, but the underlying mechanisms are largely unknown. We have identified C-terminal SRC kinase (CSK) as a critical node in a previously unappreciated negative feedback loop that limits the efficacy of current ER-t...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Xiao T,Li W,Wang X,Xu H,Yang J,Wu Q,Huang Y,Geradts J,Jiang P,Fei T,Chi D,Zang C,Liao Q,Rennhack J,Andrechek E,Li N,Detre S,Dowsett M,Jeselsohn RM,Liu XS,Brown M

更新日期：2018-07-31 00:00:00

abstract：:The α-proteobacterium Sinorhizobium meliloti establishes a chronic intracellular infection during the symbiosis with its legume hosts. Within specialized host cells, S. meliloti differentiates into highly polyploid, enlarged nitrogen-fixing bacteroids. This differentiation is driven by host cells through the productio...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Penterman J,Abo RP,De Nisco NJ,Arnold MF,Longhi R,Zanda M,Walker GC

更新日期：2014-03-04 00:00:00

abstract：:Sprouty proteins act as intracellular inhibitors of receptor tyrosine kinase signaling. Here we show that the mammalian Sprouty2 protein contains an iron-sulfur complex that can exist in an oxidized, reduced, or nitrosylated state. Purified Sprouty2 assembles into large monodisperse spheres containing approximately 24...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wu X,Alexander PB,He Y,Kikkawa M,Vogel PD,McKnight SL

更新日期：2005-09-27 00:00:00

abstract：:The sphinganine analog mycotoxin, AAL-toxin, induces a death process in plant and animal cells that shows apoptotic morphology. In nature, the AAL-toxin is the primary determinant of the Alternaria stem canker disease of tomato, thus linking apoptosis to this disease caused by Alternaria alternata f. sp. lycopersici. ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Lincoln JE,Richael C,Overduin B,Smith K,Bostock R,Gilchrist DG

更新日期：2002-11-12 00:00:00

abstract：:Two-phase random textures abound in a host of contexts, including porous and composite media, ecological structures, biological media, and astrophysical structures. Questions surrounding the spatial structure of such textures continue to pose many theoretical challenges. For example, can two-point correlation function...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jiao Y,Stillinger FH,Torquato S

更新日期：2009-10-20 00:00:00

abstract：:There are two competing hypotheses for the origin of megaliths in Europe. The conventional view from the late 19th and early 20th centuries was of a single-source diffusion of megaliths in Europe from the Near East through the Mediterranean and along the Atlantic coast. Following early radiocarbon dating in the 1970s,...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Schulz Paulsson B

更新日期：2019-02-26 00:00:00

abstract：:We have determined the packing efficiency at the protein-water interface by calculating the volumes of atoms on the protein surface and nearby water molecules in 22 crystal structures. We find that an atom on the protein surface occupies, on average, a volume approximately 7% larger than an atom of equivalent chemical...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Gerstein M,Chothia C

更新日期：1996-09-17 00:00:00

abstract：:The emerging picture of Earth's deep interior from seismic tomography indicates more complexity than previously thought. The presence of lateral anisotropy and heterogeneity in Earth's mantle highlights the need for fully anisotropic elasticity data from mineral physics. A breakthrough in high-frequency (gigahertz) ul...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Jacobsen SD,Spetzler H,Reichmann HJ,Smyth JR

更新日期：2004-04-20 00:00:00

abstract：:A yeast gene has been identified by screening for DNA replication mutants using a permeabilized cell replication assay. The mutant is temperature sensitive for growth and shows a cell cycle phenotype typical of DNA replication mutants. RNA synthesis is normal in the mutant but DNA synthesis ceases upon shift to the no...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Budd ME,Campbell JL

更新日期：1995-08-15 00:00:00

abstract：:Do negative feelings in general trigger addictive behavior, or do specific emotions play a stronger role? Testing these alternative accounts of emotion and decision making, we drew on the Appraisal Tendency Framework to predict that sadness, specifically, rather than negative mood, generally, would 1) increase craving...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Dorison CA,Wang K,Rees VW,Kawachi I,Ericson KMM,Lerner JS

更新日期：2020-01-14 00:00:00

abstract：:We study static and dynamical properties that distinguish 2D crystals constrained to lie on a curved substrate from their flat-space counterparts. A generic mechanism of dislocation unbinding in the presence of varying Gaussian curvature is presented in the context of a model surface amenable to full analytical treatm...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Vitelli V,Lucks JB,Nelson DR

更新日期：2006-08-15 00:00:00

abstract：:Circadian rhythms in metazoan eukaryotes are controlled by an endogenous molecular clock. It functions in many locations, including subsets of brain neurons (clock neurons) within the central nervous system. Although the molecular clock relies on transcription/translation feedback loops, posttranscriptional regulation...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Chen X,Rosbash M

更新日期：2016-05-24 00:00:00

abstract：:In the presence of N(alpha),N(epsilon)-diacetyl-L-Lys-D-Ala-D-Ala as donor, and either D-[(14)C]alanine, [(14)C]-glycine, or meso-[(3)H]diaminopimelic acid as acceptor, the DD carboxypeptidases from Streptomyces R61 and R39 catalyze a transpeptidation reaction with the release of terminal D-alanine from the donor and ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Pollock JJ,Ghuysen JM,Linder R,Salton MR,Perkins HR,Nieto M,Leyh-Bouille M,Frere JM,Johnson K

更新日期：1972-03-01 00:00:00

abstract：:AcrAB is a constitutively expressed, major multidrug efflux system of Escherichia coli. We have purified the cytoplasmic membrane component, AcrB, to near homogeneity, and reconstituted the protein into proteoliposomes. In the presence of DeltapH (outside acid), the protein catalyzed the extrusion of fluorescent phosp...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Zgurskaya HI,Nikaido H

更新日期：1999-06-22 00:00:00

abstract：:As an aid to the study of bovine tuberculosis (TB), a simple model has been developed of an epidemic involving two species, cattle and badgers. Each species may infect the other. The proportion of animals affected is assumed relatively small so that the usual nonlinear aspects of epidemic theory are avoided. The model...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Cox DR,Donnelly CA,Bourne FJ,Gettinby G,McInerney JP,Morrison WI,Woodroffe R

更新日期：2005-12-06 00:00:00

abstract：:Rapid and efficient protocols to generate oligodendrocytes (OL) from human induced pluripotent stem cells (iPSC) are currently lacking, but may be a key technology to understand the biology of myelin diseases and to develop treatments for such disorders. Here, we demonstrate that the induction of three transcription f...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Ehrlich M,Mozafari S,Glatza M,Starost L,Velychko S,Hallmann AL,Cui QL,Schambach A,Kim KP,Bachelin C,Marteyn A,Hargus G,Johnson RM,Antel J,Sterneckert J,Zaehres H,Schöler HR,Baron-Van Evercooren A,Kuhlmann T

更新日期：2017-03-14 00:00:00

abstract：:Targeted gene modification mediated by single-stranded oligonucleotides (SSOs) holds great potential for widespread use in a number of biological and biomedical fields, including functional genomics and gene therapy. By using this approach, specific genetic changes have been created in a number of prokaryotic and euka...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wu XS,Xin L,Yin WX,Shang XY,Lu L,Watt RM,Cheah KS,Huang JD,Liu DP,Liang CC

更新日期：2005-02-15 00:00:00

abstract：:Microsomal NADPH-cytochrome P450 reductase (CPR) is one of only two mammalian enzymes known to contain both FAD and FMN, the other being nitric-oxide synthase. CPR is a membrane-bound protein and catalyzes electron transfer from NADPH to all known microsomal cytochromes P450. The structure of rat liver CPR, expressed ...

journal_title：Proceedings of the National Academy of Sciences of the United States of America

authors： Wang M,Roberts DL,Paschke R,Shea TM,Masters BS,Kim JJ

更新日期：1997-08-05 00:00:00