Doming modes and dynamics of model heme compounds.

abstract：:Using a comprehensive transcriptome analysis, a Z chromosome-linked chicken homolog of hemogen (cHEMGN) was identified and shown to be specifically involved in testis differentiation in early chicken embryos. Hemogen [Hemgn in mice, EDAG (erythroid differentiation-associated gene protein) in humans] was recently chara...

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

authors： Nakata T,Ishiguro M,Aduma N,Izumi H,Kuroiwa A

更新日期：2013-02-26 00:00:00

abstract：:Summertime Arctic shipboard observations of oxygenated volatile organic compounds (OVOCs) such as organic acids, key precursors of climatically active secondary organic aerosol (SOA), are consistent with a novel source of OVOCs to the marine boundary layer via chemistry at the sea surface microlayer. Although this sou...

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

authors： Mungall EL,Abbatt JPD,Wentzell JJB,Lee AKY,Thomas JL,Blais M,Gosselin M,Miller LA,Papakyriakou T,Willis MD,Liggio J

更新日期：2017-06-13 00:00:00

abstract：:Spectrin (betaISigma*) and ankyrin (AnkG119) associate with Golgi membranes and the dynactin complex, but their role in vesicle trafficking remains uncertain. We find that the actin-binding domain and membrane-association domain 1 (MAD1) of betaI spectrin together form a constitutive Golgi targeting signal in transfec...

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

authors： Devarajan P,Stabach PR,De Matteis MA,Morrow JS

更新日期：1997-09-30 00:00:00

abstract：:Sulfur assimilation is an evolutionarily conserved pathway that plays an essential role in cellular and metabolic processes, including sulfation, amino acid biosynthesis, and organismal development. We report that loss of a key enzymatic component of the pathway, bisphosphate 3'-nucleotidase (Bpnt1), in mice, both who...

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

authors： Hudson BH,Hale AT,Irving RP,Li S,York JD

更新日期：2018-03-20 00:00:00

abstract：:Chronic pancreatitis (CP) is a progressive inflammatory disease of the pancreas, leading to its fibrotic destruction. There are currently no drugs that can stop or slow the progression of the disease. The etiology of the disease is multifactorial, whereas recurrent attacks of acute pancreatitis are thought to precede ...

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

authors： Hao W,Komar HM,Hart PA,Conwell DL,Lesinski GB,Friedman A

更新日期：2017-05-09 00:00:00

abstract：:cGMP is a second messenger that mediates numerous metabolic events; in the present work a role in myeloid cell differentiation was demonstrated. Nitroprusside and NaNO2, which activate cytosolic guanylate cyclase and increase the intracellular cGMP concentration, induced granulocytic differentiation of the human promy...

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

authors： Boss GR

更新日期：1989-09-01 00:00:00

abstract：:The molecular mechanisms by which transcription is selectively activated and precisely controlled by signal transducer and activator of transcription (Stat) factors represent a central issue in cytokine-mediated cellular responses. Stat6 mediates responses to IL-4 and antagonizes Stat1 activated by IFN-gamma. We have ...

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

authors： Goenka S,Boothby M

更新日期：2006-03-14 00:00:00

abstract：:The unique specificity of monoclonal antibodies (Ab) was combined with the cell-killing function of the cytolytic alternative pathway of complement. The functionally C3b-like glycoprotein of cobra venom was linked to a murine monoclonal Ab directed to a human melanoma-associated antigen by a disulfide bond, by using a...

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

authors： Vogel CW,Müller-Eberhard HJ

更新日期：1981-12-01 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：:In response to insect attack, many plants exhibit dynamic biochemical changes, resulting in the induced production of direct and indirect defenses. Elicitors present in herbivore oral secretions are believed to positively regulate many inducible plant defenses; however, little is known about the specificity of elicito...

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

authors： Schmelz EA,Engelberth J,Alborn HT,Tumlinson JH 3rd,Teal PE

更新日期：2009-01-13 00:00:00

abstract：:Previous reconstructions of marine fishing fleets have aggregated data without regard to the artisanal and industrial sectors. Engine power has often been estimated from subsets of the developed world, leading to inflated results. We disaggregated data into three sectors, artisanal (unpowered/powered) and industrial, ...

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

authors： Rousseau Y,Watson RA,Blanchard JL,Fulton EA

更新日期：2019-06-18 00:00:00

abstract：:The receptor 2B4 belongs to the Ig superfamily and is found on the surface of all murine natural killer (NK) cells as well as T cells displaying non-MHC-restricted cytotoxicity. Previous studies have suggested that 2B4 is an activating molecule because cross-linking of this receptor results in increased cytotoxicity a...

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

authors： Schatzle JD,Sheu S,Stepp SE,Mathew PA,Bennett M,Kumar V

更新日期：1999-03-30 00:00:00

abstract：:We have measured the angle-resolved transverse resistivity (ARTR), a sensitive indicator of electronic anisotropy, in high-quality thin films of the unconventional superconductor Sr2RuO4 grown on various substrates. The ARTR signal, heralding the electronic nematicity or a large nematic susceptibility, is present and ...

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

authors： Wu J,Nair HP,Bollinger AT,He X,Robinson I,Schreiber NJ,Shen KM,Schlom DG,Božović I

更新日期：2020-05-19 00:00:00

abstract：:The redox siblings nitroxyl (HNO) and nitric oxide (NO) have often been assumed to undergo casual redox reactions in biological systems. However, several recent studies have demonstrated distinct pharmacological effects for donors of these two species. Here, infusion of the HNO donor Angeli's salt into normal dogs res...

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

authors： Miranda KM,Paolocci N,Katori T,Thomas DD,Ford E,Bartberger MD,Espey MG,Kass DA,Feelisch M,Fukuto JM,Wink DA

更新日期：2003-08-05 00:00:00

abstract：:Microtubules (MTs) are polymers assembled from αβ-tubulin heterodimers that display the hallmark behavior of dynamic instability. MT dynamics are driven by GTP hydrolysis within the MT lattice, and are highly regulated by a number of MT-associated proteins (MAPs). How MAPs affect MTs is still not fully understood, par...

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

authors： Zhang R,LaFrance B,Nogales E

更新日期：2018-07-03 00:00:00

abstract：:The deduced amino acid sequence of two members of the signal transducers and activators of transcription (STAT) family from the mouse are described. Comparison with the deduced protein sequence of the two previously described genes (Stat91 and Stat113), discovered because of their activation as transcription factors a...

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

authors： Zhong Z,Wen Z,Darnell JE Jr

更新日期：1994-05-24 00:00:00

abstract：:Hearing loss is the main limitation of radiation therapy for vestibular schwannoma (VS), and identifying treatment options that minimize hearing loss are urgently needed. Treatment with bevacizumab is associated with tumor control and hearing improvement in neurofibromatosis type 2 (NF2) patients; however, its effect ...

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

authors： Gao X,Zhao Y,Stemmer-Rachamimov AO,Liu H,Huang P,Chin S,Selig MK,Plotkin SR,Jain RK,Xu L

更新日期：2015-11-24 00:00:00

abstract：:Two features make the tooth an excellent model in the study of evolutionary innovations: the relative simplicity of its structure and the fact that the major tooth-forming genes have been identified in eutherian mammals. To understand the nature of the innovation at the molecular level, it is necessary to identify the...

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

authors： Toyosawa S,O'hUigin C,Figueroa F,Tichy H,Klein J

更新日期：1998-10-27 00:00:00

abstract：:In animals and in man, diverse immunologic functions are mediated by specialized T-cell (thymus-derived lymphocyte) subsets that are distinguishable from one another on the basis of differences in cell surface determinants. Unfortunately, in humans, subset-specific antibodies have been difficult to generate. In this s...

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

authors： Engleman EG,Benike C,Osborne B,Goldsby R

更新日期：1980-03-01 00:00:00

abstract：:We report on a fundamental technological advance for multilayer polydimethylsiloxane (PDMS) microfluidics. Vertical passages (vias), connecting channels located in different layers, are fabricated monolithically, in parallel, by simple and easy means. The resulting 3D connectivity greatly expands the potential complex...

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

authors： Kartalov EP,Walker C,Taylor CR,Anderson WF,Scherer A

更新日期：2006-08-15 00:00:00

abstract：:The neural pathway that governs an escape response of Drosophila to sudden changes in light intensity can be artificially induced by electrical stimulation of the brain and monitored by electrical recording from the effector muscles. We have refined previous work in this system to permit reliable ascertainment of two ...

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

authors： Lin M,Nash HA

更新日期：1996-09-17 00:00:00

abstract：:Vaccinia virus is the prototypic orthopoxvirus and was the vaccine used to eradicate smallpox, yet the expression profiles of many of its genes remain unknown. Using a genome tiling array approach, we simultaneously measured the expression levels of all 223 annotated vaccinia virus genes during infection and determine...

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

authors： Assarsson E,Greenbaum JA,Sundström M,Schaffer L,Hammond JA,Pasquetto V,Oseroff C,Hendrickson RC,Lefkowitz EJ,Tscharke DC,Sidney J,Grey HM,Head SR,Peters B,Sette A

更新日期：2008-02-12 00:00:00

abstract：:Molecular junctions are essentially modified electrodes familiar to electrochemists where the electrolyte is replaced by a conducting "contact." It is generally hypothesized that changing molecular structure will alter system energy levels leading to a change in the transport barrier. Here, we show the conductance of ...

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

authors： Sayed SY,Fereiro JA,Yan H,McCreery RL,Bergren AJ

更新日期：2012-07-17 00:00:00

abstract：:Nonribosomal peptides and polyketides are a diverse group of natural products with complex chemical structures and enormous pharmaceutical potential. They are synthesized on modular nonribosomal peptide synthetase (NRPS) and polyketide synthase (PKS) enzyme complexes by a conserved thiotemplate mechanism. Here, we rep...

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

authors： Wang H,Fewer DP,Holm L,Rouhiainen L,Sivonen K

更新日期：2014-06-24 00:00:00

abstract：:KcsA is a prokaryotic pH-dependent potassium (K) channel. Its activation, by a decrease in the intracellular pH, is coupled with its subsequent inactivation, but the underlying mechanisms remain elusive. Here, we have investigated the conformational changes and equilibrium of KcsA by using solution NMR spectroscopy. C...

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

authors： Imai S,Osawa M,Takeuchi K,Shimada I

更新日期：2010-04-06 00:00:00

abstract：:The use of molecular methods is altering our understanding of the microbial biosphere and the complexity of the tree of life. Here, we report a newly discovered uncultured plastid-bearing eukaryotic lineage named the rappemonads. Phylogenies using near-complete plastid ribosomal DNA (rDNA) operons demonstrate that thi...

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

authors： Kim E,Harrison JW,Sudek S,Jones MD,Wilcox HM,Richards TA,Worden AZ,Archibald JM

更新日期：2011-01-25 00:00:00

abstract：:After exposure of segments of rabbit taenia coli to the nonionic detergent Triton X-100, tension could be induced by increasing the [Ca2+] in the micromolar range. In the presence of a saturating [Ca2+], this preparation developed nearly 100% of the control tetanus tension recorded from the intact muscle prior to the ...

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

authors： Gordon AR

更新日期：1978-07-01 00:00:00

abstract：:Optical waveguides simultaneously transport light at different colors, forming the basis of fiber-optic telecommunication networks that shuttle data in dozens of spectrally separated channels. Here, we reimagine this wavelength division multiplexing (WDM) paradigm in a novel context--the differentiated detection and i...

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

authors： Ozcelik D,Parks JW,Wall TA,Stott MA,Cai H,Parks JW,Hawkins AR,Schmidt H

更新日期：2015-10-20 00:00:00

abstract：:Optogenetic methods have been highly effective for suppressing neural activity and modulating behavior in rodents, but effects have been much smaller in primates, which have much larger brains. Here, we present a suite of technologies to use optogenetics effectively in primates and apply these tools to a classic quest...

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

authors： Acker L,Pino EN,Boyden ES,Desimone R

更新日期：2016-11-15 00:00:00

abstract：:Bacterial proteins often localize to distinct sites within the cell, but the primary cues that dictate localization are largely unknown. Recent evidence has shown that positive membrane curvature can serve as a cue for localization of a peripheral membrane protein. Here we report that localization of the peripheral me...

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

authors： Ramamurthi KS,Losick R

更新日期：2009-08-11 00:00:00