Drosophila IRBP bZIP heterodimer binds P-element DNA and affects hybrid dysgenesis.

abstract：:Over the past 50 years, the rising tree line along Jumpingpound Ridge in the Rocky Mountains of Alberta, Canada, has reduced the area of alpine meadows and isolated populations that reside within them. By analyzing an 11-year data set of butterfly population sizes for 17 subpopulations along the ridge, we show that fo...

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

authors： Roland J,Matter SF

更新日期：2007-08-21 00:00:00

abstract：:Golgi-associated cytoplasmic proteins, such as the coatomer protein complex, are required for vesicle budding and trafficking. We have previously described a cytoplasmic phosphoprotein, p200, which binds dynamically and specifically to Golgi membranes. The p200 protein is dissociated from Golgi membranes in the presen...

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

authors： Narula N,Stow JL

更新日期：1995-03-28 00:00:00

abstract：:Certain complex phenotypes appear repeatedly across diverse species due to processes of evolutionary conservation and convergence. In some contexts like developmental body patterning, there is increased appreciation that common molecular mechanisms underlie common phenotypes; these molecular mechanisms include highly ...

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

authors： Rittschof CC,Bukhari SA,Sloofman LG,Troy JM,Caetano-Anollés D,Cash-Ahmed A,Kent M,Lu X,Sanogo YO,Weisner PA,Zhang H,Bell AM,Ma J,Sinha S,Robinson GE,Stubbs L

更新日期：2014-12-16 00:00:00

abstract：:The SecY protein of Escherichia coli is an integral membrane component of the protein export apparatus. Suppressor mutations in the secY gene (prlA alleles) have been isolated that restore the secretion of precursor proteins with defective signal sequences. These mutations have never been shown to affect the transloca...

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

authors： Nouwen N,de Kruijff B,Tommassen J

更新日期：1996-06-11 00:00:00

abstract：:Differential rates of AIDS development and/or T4 lymphocyte depletion in HIV-1-infected individuals remain unexplained. The hypothesis that qualitative differences in selection pressure in vivo may account for different rates of disease progression was addressed in nine eligible study participants from a cohort of 315...

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

authors： Wang WK,Essex M,McLane MF,Mayer KH,Hsieh CC,Brumblay HG,Seage G,Lee TH

更新日期：1996-06-25 00:00:00

abstract：:The 24 human chromosome types of normal diploid fibroblast cell strain were classified into 15 groups by high-resolution flow cytometry on the basis of 33258 Hoechst fluorescence. Chromosomes associated with each group were flow sorted onto microscope slides and identified by quinacrine banding analysis. DNA cytophoto...

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

authors： Carrano AV,Gray JW,Langlois RG,Burkhart-Schultz KJ,Van Dilla MA

更新日期：1979-03-01 00:00:00

abstract：:Mutations in Pink1, a gene encoding a Ser/Thr kinase with a mitochondrial-targeting signal, are associated with Parkinson's disease (PD), the most common movement disorder characterized by selective loss of dopaminergic neurons. The mechanism by which loss of Pink1 leads to neurodegeneration is not understood. Here we...

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

authors： Yang Y,Gehrke S,Imai Y,Huang Z,Ouyang Y,Wang JW,Yang L,Beal MF,Vogel H,Lu B

更新日期：2006-07-11 00:00:00

abstract：:Some pathogenesis-related genes are expressed in fungi only when the pathogen is in the host, but the host signals that trigger these gene expressions have not been identified. Virulent Nectria haematococca infects pea plants and requires either pelA, which is induced by pectin, or pelD, which is induced only in plant...

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

authors： Yang Z,Rogers LM,Song Y,Guo W,Kolattukudy PE

更新日期：2005-03-15 00:00:00

abstract：:The expression of interleukin 2 receptors (IL-2R) is a critical step leading to normal lymphocyte proliferation. Since thymosin fraction 5 (TF5), a thymic hormone preparation, enhances lymphoproliferative responses of human cells, we examined the effects of TF5 on the expression of IL-2R on mitogen-stimulated human ly...

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

authors： Sztein MB,Serrate SA,Goldstein AL

更新日期：1986-08-01 00:00:00

abstract：:A detailed model of the G(2) DNA damage checkpoint (G2DDC) system is presented that includes complex regulatory networks of the mitotic kinase Cdc2, phosphatase Cdc25, Wee1 kinase, and damage signal transduction pathways involving Chk1 and p53. Assumptions on the kinetic equations of the G2DDC are made, and computer s...

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

authors： Aguda BD

更新日期：1999-09-28 00:00:00

abstract：:BDF1 [(C57BL/6 X DBA/2)F1] mice were primed with alum-absorbed ovalbumin, and their spleen cells were cultured with ovalbumin to activate antigen-primed T cells. The activated T cells were then propagated in interleukin 2-containing medium in the presence or absence of affinity-purified glycosylation-inhibiting factor...

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

authors： Iwata M,Ishizaka K

更新日期：1987-04-01 00:00:00

abstract：:Sour taste is detected by a subset of taste cells on the tongue and palate epithelium that respond to acids with trains of action potentials. Entry of protons through a Zn(2+)-sensitive proton conductance that is specific to sour taste cells has been shown to be the initial event in sour taste transduction. Whether th...

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

authors： Ye W,Chang RB,Bushman JD,Tu YH,Mulhall EM,Wilson CE,Cooper AJ,Chick WS,Hill-Eubanks DC,Nelson MT,Kinnamon SC,Liman ER

更新日期：2016-01-12 00:00:00

abstract：:An ability to safely harness the powerful regenerative potential of adult stem cells for clinical applications is critically dependent on a comprehensive understanding of the underlying mechanisms regulating their activity. Epithelial organoid cultures accurately recapitulate many features of in vivo stem cell-driven ...

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

authors： Murakami K,Terakado Y,Saito K,Jomen Y,Takeda H,Oshima M,Barker N

更新日期：2021-01-26 00:00:00

abstract：:Evidence based on a study of alanine-resistant (Alar), constitutive mutants of CHO-K1 cells and the conditions that favor stimulation of the A system of amino acid activity supports the model that the A system of amino acid transport in these cells is repressible and under negative control of regulatory gene R1. In th...

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

authors： Moffett J,Périer F,Jones M,Englesberg E

更新日期：1987-11-01 00:00:00

abstract：:Short interfering RNA (siRNA) is widely used for studying gene function and holds great promise as a tool for validating drug targets and treating disease. A critical assumption in these applications is that the effect of siRNA on cells is specific, i.e., limited to the specific knockdown of the target gene. In this a...

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

authors： Semizarov D,Frost L,Sarthy A,Kroeger P,Halbert DN,Fesik SW

更新日期：2003-05-27 00:00:00

abstract：:Ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid have been attached covalently to the 5' terminus of the deoxynucleotide sequence C-A-C-A-A-T-T-C-C-A-C-A-C-A-A-C (16-mer) via an ethylenediamine linker. In the presence of Fe2+ and dithiothreitol, these reagents bring about the hybridization-depend...

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

authors： Chu BC,Orgel LE

更新日期：1985-02-01 00:00:00

abstract：:Tissue factor (TF) plays an important role in hemostasis, inflammation, angiogenesis, and the pathophysiology of atherosclerosis and cancer. In this article we uncover a mechanism in which protein S, which is well known as the cofactor of activated protein C, specifically inhibits TF activity by promoting the interact...

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

authors： Hackeng TM,Seré KM,Tans G,Rosing J

更新日期：2006-02-28 00:00:00

abstract：:The ability to dynamically organize functional nanoparticles (NPs) via the use of environmental triggers (temperature, pH, light, or solvent polarity) opens up important perspectives for rapid and convenient construction of a rich variety of complex assemblies and materials with new structures and functionalities. Her...

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

authors： Chen Y,Wang Z,He Y,Yoon YJ,Jung J,Zhang G,Lin Z

更新日期：2018-02-13 00:00:00

abstract：:The Calvin-Benson-Bassham cycle (Calvin cycle) catalyzes virtually all primary productivity on Earth and is the major sink for atmospheric CO(2). A less appreciated function of CO(2) fixation is as an electron-accepting process. It is known that anoxygenic phototrophic bacteria require the Calvin cycle to accept elect...

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

authors： McKinlay JB,Harwood CS

更新日期：2010-06-29 00:00:00

abstract：:The G-protein-coupled metabotropic glutamate receptor mGluR1 alpha and the ionotropic glutamate receptor GluR6 were examined for posttranslational palmitoylation. Recombinant receptors were expressed in baculovirus-infected insect cells or in human embryonic kidney cells and were metabolically labeled with [3H]palmiti...

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

authors： Pickering DS,Taverna FA,Salter MW,Hampson DR

更新日期：1995-12-19 00:00:00

abstract：:The DNA-binding domain of c-Myb consists of three homologous tandem repeats of 52 amino acids. The structure of the third (C-terminal) repeat obtained by NMR analysis has a conformation related to the helix-turn-helix motif. To identify the role of each repeat in the sequence recognition of DNA, we analyzed specific i...

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

authors： Tanikawa J,Yasukawa T,Enari M,Ogata K,Nishimura Y,Ishii S,Sarai A

更新日期：1993-10-15 00:00:00

abstract：:Genomic imprinting results in the differential expression of genes, depending on which allele is inherited from the mother and which from the father. The effects of such differential gene expression are reflected in phenotypic differences between the reciprocal heterozygotes (Aa vs. aA). Although many imprinted genes ...

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

authors： Cheverud JM,Hager R,Roseman C,Fawcett G,Wang B,Wolf JB

更新日期：2008-03-18 00:00:00

abstract：:Neonates suffer high morbidity and mortality in infection, presumably because of the lack of a fully developed adaptive and innate immune system. Evidence of poor innate responses in neonates has been shown by using a model that sensitizes the host to Toll-like receptor (TLR)-mediated inflammation with d-galactosamine...

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

authors： Zhao J,Kim KD,Yang X,Auh S,Fu YX,Tang H

更新日期：2008-05-27 00:00:00

abstract：:The expression and integration of membrane proteins into vesicle membranes is a critical step in the design of cell-mimetic biosensors, bioreactors, and artificial cells. While membrane proteins have been integrated into a variety of nonnatural membranes, the effects of the chemical and physical properties of these ve...

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

authors： Jacobs ML,Boyd MA,Kamat NP

更新日期：2019-03-05 00:00:00

abstract：:ErbB3 (HER3) is a member of the EGF receptor (EGFR) family of receptor tyrosine kinases, which, unlike the other three family members, contains a pseudo kinase in place of a tyrosine kinase domain. In cancer, ErbB3 activation is driven by a ligand-dependent mechanism through the formation of heterodimers with EGFR, Er...

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

authors： Lee S,Greenlee EB,Amick JR,Ligon GF,Lillquist JS,Natoli EJ Jr,Hadari Y,Alvarado D,Schlessinger J

更新日期：2015-10-27 00:00:00

abstract：:Soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor (SNARE) protein interactions at the synaptic vesicle/plasma membrane interface play an essential role in neurotransmitter release. The membrane-proximal region (amino acids 77-90) of the v-SNARE vesicle-associated membrane protein 2 (VAMP 2,...

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

authors： de Haro L,Ferracci G,Opi S,Iborra C,Quetglas S,Miquelis R,Lévêque C,Seagar M

更新日期：2004-02-10 00:00:00

abstract：:In the search for selective and long-acting analogs of somatostatin, nearly 200 compounds were synthesized by solid-phase methods, purified, and tested biologically. Among these octapeptides, some contained N-terminal (Formula: see text) were 177 times and 113 times more potent, respectively, than somatostatin in test...

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

authors： Cai RZ,Szoke B,Lu R,Fu D,Redding TW,Schally AV

更新日期：1986-03-01 00:00:00

abstract：:Early abstract reasoning has typically been characterized by a "relational shift," in which children initially focus on object features but increasingly come to interpret similarity in terms of structured relations. An alternative possibility is that this shift reflects a learned bias, rather than a typical waypoint a...

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

authors： Carstensen A,Zhang J,Heyman GD,Fu G,Lee K,Walker CM

更新日期：2019-07-09 00:00:00

abstract：:Although in decline after successful anti-HIV therapy, B-cell lymphomas are still elevated in HIV-1-seropositive (HIV+) persons, and the mechanisms are obscure. The HIV-1 matrix protein p17 persists in germinal centers long after HIV-1 drug suppression, and some p17 variants (vp17s) activate Akt signaling and promote ...

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

authors： Dolcetti R,Giagulli C,He W,Selleri M,Caccuri F,Eyzaguirre LM,Mazzuca P,Corbellini S,Campilongo F,Marsico S,Giombini E,Muraro E,Rozera G,De Paoli P,Carbone A,Capobianchi MR,Ippolito G,Fiorentini S,Blattner WA,Lu W,

更新日期：2015-11-17 00:00:00

abstract：:The mammary gland consists of an adipose tissue that, in a process called branching morphogenesis, is invaded by a ductal epithelial network comprising basal and luminal epithelial cells. Stem and progenitor cells drive mammary growth, and their proliferation is regulated by multiple extracellular cues. One of the key...

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

authors： Kessenbrock K,Smith P,Steenbeek SC,Pervolarakis N,Kumar R,Minami Y,Goga A,Hinck L,Werb Z

更新日期：2017-03-21 00:00:00