| | Advertisement | | "Metabolomics...an excellent way of understanding individual uniqueness and..." - Craig Venter A new publication in Nature Genetics reveals how metabolomic profiling coupled with genomics data yields new insight into diseases, potential biomarkers and drug treatments. | | | | | | | Weekly Content Alert
| | 25 June 2014 | | Featured image: | | | | Hong et al. investigate turbulent flow patterns around wind turbines using a snowstorm as a natural laboratory. | | | | | | | Advertisement | | Nature Reviews Neurology Focus on Epilepsy
In this special focus issue, cutting-edge investigators from around the world highlight the important challenges and progress in epilepsy research and clinical practice.
Produced with financial support from UCB | | | | | | | Latest Articles | View all Articles | | | Chronic inflammation induces telomere dysfunction and accelerates ageing in mice OPEN | | Diana Jurk, Caroline Wilson, João F. Passos, Fiona Oakley, Clara Correia-Melo, Laura Greaves, Gabriele Saretzki, Chris Fox, Conor Lawless, Rhys Anderson, Graeme Hewitt, Sylvia LF Pender, Nicola Fullard, Glyn Nelson, Jelena Mann, Bart van de Sluis, Derek A. Mann and Thomas von Zglinicki | | Many age-related diseases are associated with chronic inflammation. Here Jurk et al. use a mouse model of chronic, low-grade inflammation to support a model by which such inflammation promotes a vicious cycle of oxidative stress, telomere dysfunction and cell senescence that accelerates the ageing process. | | 24 June 2014 | doi: 10.1038/ncomms5172 | | Biological Sciences Cell biology Medical research | Supersensitive fingerprinting of explosives by chemically modified nanosensors arrays | | Amir Lichtenstein, Ehud Havivi, Ronen Shacham, Ehud Hahamy, Ronit Leibovich, Alexander Pevzner, Vadim Krivitsky, Guy Davivi, Igor Presman, Roey Elnathan, Yoni Engel, Eli Flaxer and Fernando Patolsky | | Reliable detection and identification of explosives is difficult due to the large numbers of compounds and the trace amount of material with which to work. Here, the authors show a nanosensor array capable of fingerprinting individual explosives and detecting them down to the parts-per-quadrillion concentration range. | | 24 June 2014 | doi: 10.1038/ncomms5195 | | Chemical Sciences Analytical chemistry Materials science
Nanotechnology | A magnetic compass aids monarch butterfly migration OPEN | | Patrick A. Guerra, Robert J. Gegear and Steven M. Reppert | | Monarch butterflies (Danaus plexippus) migrate from North America to central Mexico during the fall. Here, Guerra et al. show that, in addition to a sun compass orientation, monarch butterflies use a magnetic compass to help direct their flight towards the equator. | | 24 June 2014 | doi: 10.1038/ncomms5164 | | Biological Sciences Zoology | π–π interaction of aromatic groups in amphiphilic molecules directing for single-crystalline mesostructured zeolite nanosheets | | Dongdong Xu, Yanhang Ma, Zhifeng Jing, Lu Han, Bhupendra Singh, Ji Feng, Xuefeng Shen, Fenglei Cao, Peter Oleynikov, Huai Sun, Osamu Terasaki and Shunai Che | | The preparation of mesoporous zeolites is important for their incorporation into industrially relevant applications. Here, the authors design a single quaternary ammonium head amphiphilic template, which directs the formation of mesostructured crystalline zeolites due to π-stacking supramolecular interactions. | | 24 June 2014 | doi: 10.1038/ncomms5262 | | Chemical Sciences Materials science Nanotechnology | p38 MAPK-inhibited dendritic cells induce superior antitumour immune responses and overcome regulatory T-cell-mediated immunosuppression | | Yong Lu, Mingjun Zhang, Siqing Wang, Bangxing Hong, Zhiqiang Wang, Haiyan Li, Yuhuan Zheng, Jing Yang, Richard E. Davis, Jianfei Qian, Jian Hou and Qing Yi | | Dendritic cell-based approaches to induce antitumour immunity are promising, but have not shown encouraging results in clinical trials. Here the authors show that inhibition of p38 MAPK in dendritic cells increases expression of OX40L, boosting antitumour T-cell responses and dampening regulatory T-cell activity. | | 24 June 2014 | doi: 10.1038/ncomms5229 | | Biological Sciences Cancer Immunology | Gains to species diversity in organically farmed fields are not propagated at the farm level | | Manuel K. Schneider, Gisela Lüscher, Philippe Jeanneret, Michaela Arndorfer, Youssef Ammari, Debra Bailey, Katalin Balázs, András Báldi, Jean-Philippe Choisis, Peter Dennis, Sebastian Eiter, Wendy Fjellstad, Mariecia D. Fraser, Thomas Frank, Jürgen K. Friedel, Salah Garchi, Ilse R. Geijzendorffer, Tiziano Gomiero, Guillermo Gonzalez-Bornay, Andy Hector et al. | | Organic farming is proposed to increase the biodiversity of organisms within a field. In this study, Schneider et al. show that while biodiversity is increased in organically farmed fields compared to conventionally farmed land, these effects are not seen at a greater spatial level. | | 24 June 2014 | doi: 10.1038/ncomms5151 | | Biological Sciences Ecology | Implementing a strand of a scalable fault-tolerant quantum computing fabric | | Jerry M. Chow, Jay M. Gambetta, Easwar Magesan, David W. Abraham, Andrew W. Cross, B R Johnson, Nicholas A. Masluk, Colm A. Ryan, John A. Smolin, Srikanth J. Srinivasan and M Steffen | | Quantum error correction protocols aim at protecting quantum information from corruption due to decoherence and imperfect control. Using three superconducting transmon qubits, Chow et al. demonstrate necessary elements for the implementation of the surface error correction code on a two-dimensional lattice. | | 24 June 2014 | doi: 10.1038/ncomms5015 | | Physical Sciences Applied physics Theoretical physics | Electrochemical dynamics of nanoscale metallic inclusions in dielectrics | | Yuchao Yang, Peng Gao, Linze Li, Xiaoqing Pan, Stefan Tappertzhofen, ShinHyun Choi, Rainer Waser, Ilia Valov and Wei D. Lu | | Nanoscale metal inclusions play an important role in solid-state dielectric devices. Here, the authors demonstrate that these inclusions can change their shape, size and position in response to an applied electric field, and that electrochemical processes can lead to metal cluster nucleation and growth. | | 23 June 2014 | doi: 10.1038/ncomms5232 | | Physical Sciences Materials science Nanotechnology | AmiA is a penicillin target enzyme with dual activity in the intracellular pathogen Chlamydia pneumoniae OPEN | | Anna Klöckner, Christian Otten, Adeline Derouaux, Waldemar Vollmer, Henrike Bühl, Stefania De Benedetti, Daniela Münch, Michaele Josten, Katja Mölleken, Hans-Georg Sahl and Beate Henrichfreise | | Penicillin inhibits growth of chlamydial pathogens despite their lack of a conventional peptidoglycan cell wall. Here the authors report that the chlamydial amidase, AmiA, which can rescue cell division defects of an E. coli amiA mutant, has dual activity as a penicillin sensitive, lipid II-targetting carboxypeptidase. | | 23 June 2014 | doi: 10.1038/ncomms5201 | | Biological Sciences Biochemistry Cell biology
Microbiology | Reversible electric-field control of magnetization at oxide interfaces | | F. A. Cuellar, Y. H. Liu, J. Salafranca, N. Nemes, E. Iborra, G. Sanchez-Santolino, M. Varela, M. Garcia Hernandez, J. W. Freeland, M. Zhernenkov, M. R. Fitzsimmons, S. Okamoto, S. J. Pennycook, M. Bibes, A. Barthélémy, S.G.E. te Velthuis, Z. Sefrioui, C. Leon and J. Santamaria | | Control of magnetism by an electric field is of interest for applications such as information storage. Here, the authors achieve this magnetoelectric coupling in a non-superconducting cuprate, sandwiched between two ferromagnetic manganese oxide layers, whose magnetization can be switched with the sole action of an electric field. | | 23 June 2014 | doi: 10.1038/ncomms5215 | | Physical Sciences Applied physics Condensed matter
Materials science | Ezh2 loss promotes development of myelodysplastic syndrome but attenuates its predisposition to leukaemic transformation | | Goro Sashida, Hironori Harada, Hirotaka Matsui, Motohiko Oshima, Makiko Yui, Yuka Harada, Satomi Tanaka, Makiko Mochizuki-Kashio, Changshan Wang, Atsunori Saraya, Tomoya Muto, Yoshihiro Hayashi, Kotaro Suzuki, Hiroshi Nakajima, Toshiya Inaba, Haruhiko Koseki, Gang Huang, Toshio Kitamura and Atsushi Iwama | | Mutations in the EZH2 gene are found in myelodysplastic syndrome (MDS) and are often accompanied by mutations in RUNX1. Here, the authors develop a mouse model of MDS and show that EZH2 loss enhances the RUNX1-mediated MDS pathology. | | 23 June 2014 | doi: 10.1038/ncomms5177 | | Biological Sciences Cancer Immunology | Two-dimensional superconductivity at the interface of a Bi2Te3/FeTe heterostructure | | Qing Lin He, Hongchao Liu, Mingquan He, Ying Hoi Lai, Hongtao He, Gan Wang, Kam Tuen Law, Rolf Lortz, Jiannong Wang and Iam Keong Sou | | Under normal conditions neither FeTe nor Bi2Te3 are superconductors, the former being a semiconductor and the latter a topological insulator. However, He et al. show that when a Bi2Te3 layer, even down to one-quintuple-layer in thickness, is grown on FeTe, superconductivity develops at the interface. | | 23 June 2014 | doi: 10.1038/ncomms5247 | | Physical Sciences Condensed matter | Ultrafast X-ray Auger probing of photoexcited molecular dynamics | | B. K. McFarland, J. P. Farrell, S. Miyabe, F. Tarantelli, A. Aguilar, N. Berrah, C. Bostedt, J. D. Bozek, P. H. Bucksbaum, J. C. Castagna, R. N. Coffee, J. P. Cryan, L. Fang, R. Feifel, K. J. Gaffney, J. M. Glownia, T. J. Martinez, M. Mucke, B. Murphy, A. Natan et al. | | Photoexciting molecules provides insights into their different degrees of freedom if the ultrafast electron and nuclei motion can be properly analysed. To this end, McFarland et al. use X-ray pump-probe techniques to show that Auger spectra can unveil information on nuclear relaxation in molecules. | | 23 June 2014 | doi: 10.1038/ncomms5235 | | Physical Sciences Atomic and molecular physics
Physical chemistry | Identification of promiscuous ene-reductase activity by mining structural databases using active site constellations OPEN | | Georg Steinkellner, Christian C. Gruber, Tea Pavkov-Keller, Alexandra Binter, Kerstin Steiner, Christoph Winkler, Andrzej Łyskowski, Orsolya Schwamberger, Monika Oberer, Helmut Schwab, Kurt Faber, Peter Macheroux and Karl Gruber | | Enzymes are very efficient reaction catalysts, though taking advantage of this synthetically is hampered by their notorious specificity. Here, the authors identify important arrangements of active site residues and use structural bioinformatics to successfully predict enzyme activity. | | 23 June 2014 | doi: 10.1038/ncomms5150 | | Biological Sciences Bioinformatics Catalysis | Snf2h-mediated chromatin organization and histone H1 dynamics govern cerebellar morphogenesis and neural maturation OPEN | | Matías Alvarez-Saavedra, Yves De Repentigny, Pamela S. Lagali, Edupuganti V. S. Raghu Ram, Keqin Yan, Emile Hashem, Danton Ivanochko, Michael S. Huh, Doo Yang, Alan J. Mears, Matthew A. M. Todd, Chelsea P. Corcoran, Erin A. Bassett, Nicholas J. A. Tokarew, Juraj Kokavec, Romit Majumder, Ilya Ioshikhes, Valerie A. Wallace, Rashmi Kothary, Eran Meshorer et al. | | The chromatin remodelling proteins Snf2h and Snf2l regulate nucleosome spacing. Here, the authors show that Snf2h ablation impairs chromatin organization of neuronal lineages during mouse embryonic and post-natal cerebellar development. | | 20 June 2014 | doi: 10.1038/ncomms5181 | | Biological Sciences Developmental biology
Molecular biology Neuroscience | Probing the solar corona with very long baseline interferometry OPEN | | B. Soja, R. Heinkelmann and H. Schuh | | Very long baseline interferometry is an astronomical technique that uses radio telescopes on Earth to observe extragalactic radio sources. Here, the authors show that it can be used to measure the electron density of the Sun's corona and compare their findings to models from spacecraft tracking data. | | 20 June 2014 | doi: 10.1038/ncomms5166 | | Physical Sciences Astronomy | Ciliopathy-associated gene Cc2d2a promotes assembly of subdistal appendages on the mother centriole during cilia biogenesis | | Shobi Veleri, Souparnika H. Manjunath, Robert N. Fariss, Helen May-Simera, Matthew Brooks, Trevor A. Foskett, Chun Gao, Teresa A. Longo, Pinghu Liu, Kunio Nagashima, Rivka A. Rachel, Tiansen Li, Lijin Dong and Anand Swaroop | | Mutations in the centrosome-cilia gene, Cc2d2a, result in Meckel and Joubert syndromes in humans. By creating Cc2d2a-mutant mice, Veleri et al. show that this gene encodes a component of subdistal appendages; ciliary structures thought to be required to anchor cilia to the microtubule network. | | 20 June 2014 | doi: 10.1038/ncomms5207 | | Biological Sciences Cell biology Genetics | Three functionally distinct classes of C-fibre nociceptors in primates | | Matthew Wooten, Hao-Jui Weng, Timothy V. Hartke, Jasenka Borzan, Amanda H. Klein, Brian Turnquist, Xinzhong Dong, Richard A. Meyer and Matthias Ringkamp | | C-fibre polymodal nociceptors in primates have been classified into two groups based on their sensitivity to mechanical stimuli. Here, Wooten et al. describe how the differences in the response speed of the receptors to stimuli suggest that these should be considered as three separate groups. | | 20 June 2014 | doi: 10.1038/ncomms5122 | | Biological Sciences Neuroscience | Correlated defect nanoregions in a metal–organic framework | | Matthew J. Cliffe, Wei Wan, Xiaodong Zou, Philip A. Chater, Annette K. Kleppe, Matthew G. Tucker, Heribert Wilhelm, Nicholas P. Funnell, François-Xavier Coudert and Andrew L Goodwin | | Correlated defects are known to be closely linked to material properties throughout condensed matter research. Here, the authors examine the defects in a canonical metal–organic framework with an array of crystallographic and computational techniques and suggest they are correlated rather than random. | | 20 June 2014 | doi: 10.1038/ncomms5176 | | Chemical Sciences Inorganic chemistry Materials science | Hepatoprotective role of Sestrin2 against chronic ER stress | | Hwan-Woo Park, Haeli Park, Seung-Hyun Ro, Insook Jang, Ian A. Semple, David N. Kim, Myungjin Kim, Myeongjin Nam, Deqiang Zhang, Lei Yin and Jun Hee Lee | | When exposed to chronic endoplasmic reticulum (ER) stress, cells downregulate protein synthesis by inhibiting mTOR signalling. Park et al. identify Sestrin2 as a transcriptional target of the ER stress pathway and an important mediator of this protective response in the liver. | | 20 June 2014 | doi: 10.1038/ncomms5233 | | Biological Sciences Cell biology | Glycosphingolipid-functionalized nanoparticles recapitulate CD169-dependent HIV-1 uptake and trafficking in dendritic cells | | Xinwei Yu, Amin Feizpour, Nora-Guadalupe P. Ramirez, Linxi Wu, Hisashi Akiyama, Fangda Xu, Suryaram Gummuluru and Björn M. Reinhard | | Ganglioside GM3, a cellular lipid included in the envelope of HIV-1 viral particles, interacts with cellular receptor CD169. Here, the authors develop artificial nanoparticles, consisting of a golden core and a GM3-containing synthetic membrane, that recapitulate the CD169-dependent uptake of viral particles. | | 20 June 2014 | doi: 10.1038/ncomms5136 | | Biological Sciences Nanotechnology Virology | Ultrafast fluorescence imaging in vivo with conjugated polymer fluorophores in the second near-infrared window | | Guosong Hong, Yingping Zou, Alexander L. Antaris, Shuo Diao, Di Wu, Kai Cheng, Xiaodong Zhang, Changxin Chen, Bo Liu, Yuehui He, Justin Z. Wu, Jun Yuan, Bo Zhang, Zhimin Tao, Chihiro Fukunaga and Hongjie Dai | | In vivo fluorescence imaging in the second near-infrared window allows high resolution and tissue penetration. Here, using conjugated polymers, the authors achieve imaging with high spatial and time resolutions capable of resolving mouse femoral artery blood-flow variations within a single cardiac cycle. | | 20 June 2014 | doi: 10.1038/ncomms5206 | | Chemical Sciences Materials science Medical research
Optical physics | Co-option of Sox3 as the male-determining factor on the Y chromosome in the fish Oryzias dancena | | Yusuke Takehana, Masaru Matsuda, Taijun Myosho, Maximiliano L. Suster, Koichi Kawakami, Tadasu Shin-I, Yuji Kohara, Yoko Kuroki, Atsushi Toyoda, Asao Fujiyama, Satoshi Hamaguchi, Mitsuru Sakaizumi and Kiyoshi Naruse | | Sex chromosomes harbour specific sequences that determine the sexual development of the organism; yet these sequences remain unknown for many species. Here, Takehana et al. show that, similarly to mammals, Sox3 on the Y chromosome is the male-determining factor in the medaka-related fish Oryzias dancena. | | 20 June 2014 | doi: 10.1038/ncomms5157 | | Biological Sciences Evolution Genetics | Nitrogen stress response and stringent response are coupled in Escherichia coli OPEN | | Daniel R. Brown, Geraint Barton, Zhensheng Pan, Martin Buck and Sivaramesh Wigneshweraraj | | The nitrogen regulation stress response and the stringent response are two major regulatory pathways in bacteria, but their mutual coordination is unclear. Here, the authors show that NtrC, the main regulatory protein from the first pathway, activates expression of relA, a key gene from the second pathway. | | 20 June 2014 | doi: 10.1038/ncomms5115 | | Biological Sciences Microbiology | Relative motions between left flipper and dorsal fin domains favour P2X4 receptor activation | | Wen-Shan Zhao, Jin Wang, Xiao-Juan Ma, Yang Yang, Yan Liu, Li-Dong Huang, Ying-Zhe Fan, Xiao-Yang Cheng, Hong-Zhuan Chen, Rui Wang and Ye Yu | | P2X receptors are ion channels that are controlled by the level of extracellular ATP. Here, Zhao et al. describe the coordinated allosteric changes in two protein domains that couple extracellular ATP-binding to channel gating and show that these changes are essential for the function of the proteins. | | 19 June 2014 | doi: 10.1038/ncomms5189 | | Biological Sciences Biochemistry Biophysics | Experimental simulation of closed timelike curves | | Martin Ringbauer, Matthew A. Broome, Casey R. Myers, Andrew G. White and Timothy C. Ralph | | Closed timelike curves are solutions to the equations of general relativity that permit the possibility of time travel. Ringbauer et al. experimentally emulate the quantum equivalent of these solutions to explore the nature of such phenomena, their implications and relationship to quantum mechanics. | | 19 June 2014 | doi: 10.1038/ncomms5145 | | Physical Sciences Theoretical physics | Shared VH1-46 gene usage by pemphigus vulgaris autoantibodies indicates common humoral immune responses among patients | | Michael Jeffrey Cho, Agnes S.Y. Lo, Xuming Mao, Arielle R. Nagler, Christoph T. Ellebrecht, Eric M. Mukherjee, Christoph M. Hammers, Eun-Jung Choi, Preety M. Sharma, Mohamed Uduman, Hong Li, Ann H. Rux, Sara A. Farber, Courtney B. Rubin, Steven H. Kleinstein, Bruce S. Sachais, Marshall R. Posner, Lisa A. Cavacini and Aimee S. Payne | | Pemphingus vulgaris is known to be caused by anti-desmoglein 3 autoantibodies, but how these antibodies arise is not clear. Here, the authors show that VH gene usage is shared among patients and that few or no somatic mutations are required for these autoantibodies to acquire autoreactivity. | | 19 June 2014 | doi: 10.1038/ncomms5167 | | Biological Sciences Immunology | Vanillin formation from ferulic acid in Vanilla planifolia is catalysed by a single enzyme OPEN | | Nethaji J. Gallage, Esben H. Hansen, Rubini Kannangara, Carl Erik Olsen, Mohammed Saddik Motawia, Kirsten Jørgensen, Inger Holme, Kim Hebelstrup, Michel Grisoni and Birger Lindberg Møller | | Vanilla is derived from vanillin isolated from a vanillin-producing orchid, but the process is laborious, costly and results in a small yield. Here, the authors identified an enzyme from the orchid, Vanilla planifolia, that is able to catalyse the formation of vanillin and vanillin glucoside from ferulic acid and its glucoside in vitro, respectively. | | 19 June 2014 | doi: 10.1038/ncomms5037 | | Biological Sciences Biotechnology Plant sciences | Pyrimidine-2,4,6-triones are a new class of voltage-gated L-type Ca2+ channel activators OPEN | | Nadine J. Ortner, Gabriella Bock, David H.F. Vandael, Robert Mauersberger, Henning J. Draheim, Ronald Gust, Emilio Carbone, Petronel Tuluc and Jörg Striessnig | | Selective inhibitors of the L-type Ca2+ channel Cav1.3 are being developed as neuroprotective drugs. Here, Ortner et al. assess the pharmacological properties of a recently reported, selective Cav1.3 blocker and show that this agent is a Ca2+ channel activator. | | 19 June 2014 | doi: 10.1038/ncomms4897 | | Biological Sciences Biochemistry | X-ray structure of a CDP-alcohol phosphatidyltransferase membrane enzyme and insights into its catalytic mechanism | | Przemyslaw Nogly, Ivan Gushchin, Alina Remeeva, Ana M. Esteves, Nuno Borges, Pikyee Ma, Andrii Ishchenko, Sergei Grudinin, Ekaterina Round, Isabel Moraes, Valentin Borshchevskiy, Helena Santos, Valentin Gordeliy and Margarida Archer | | The CDP-alcohol phosphatidyltransferase family is involved in phospholipid biosynthesis. Here, Nogly et al. report the crystal structure of a bifunctional enzyme from this family, show that magnesium is required for enzymatic activity, and propose a structure-based catalytic mechanism. | | 19 June 2014 | doi: 10.1038/ncomms5169 | | Biological Sciences Biochemistry | Rydberg atoms in hollow-core photonic crystal fibres OPEN | | G. Epple, K. S. Kleinbach, T. G. Euser, N. Y. Joly, T. Pfau, P. St. J. Russell and R. Löw | | Rydberg atoms are appealing for sensing, atomic and quantum information studies, if they can be suitably integrated with optical devices. Towards this end, Epple et al. show that caesium-filled kagome-lattice hollow-core photonic crystal fibres provide a platform for fibre-based spectroscopy of Rydberg states. | | 19 June 2014 | doi: 10.1038/ncomms5132 | | Physical Sciences Atomic and molecular physics
Optical physics | Direct observation of lattice symmetry breaking at the hidden-order transition in URu2Si2 | | S. Tonegawa, S. Kasahara, T. Fukuda, K. Sugimoto, N. Yasuda, Y. Tsuruhara, D. Watanabe, Y. Mizukami, Y. Haga, T. D. Matsuda, E. Yamamoto, Y. Onuki, H. Ikeda, Y. Matsuda and T. Shibauchi | | In the heavy-fermion metal URu2Si2, direct evidence of symmetry change in the crystal structure at the hidden-order transition has been missing. Using synchrotron X-ray diffraction measurements, Tonegawa et al. observe lattice symmetry breaking from the fourfold tetragonal to twofold orthorhombic structure. | | 19 June 2014 | doi: 10.1038/ncomms5188 | | Physical Sciences Condensed matter Materials science | HOP2-MND1 modulates RAD51 binding to nucleotides and DNA | | Dmitry V. Bugreev, Fei Huang, Olga M. Mazina, Roberto J. Pezza, Oleg N. Voloshin, R. Daniel Camerini-Otero and Alexander V. Mazin | | The HOP2-MND1 heterodimer is essential for homologous recombination. Here, Bugreev et al. analyse its mechanism of action in vitro and show that HOP2-MND1 stabilizes an active conformation of Rad51, thus triggering DNA strand exchange. | | 19 June 2014 | doi: 10.1038/ncomms5198 | | Biological Sciences Molecular biology | Source identification of the Arctic sea ice proxy IP25 | | T. A. Brown, S. T. Belt, A. Tatarek and C. J. Mundy | | The organic geochemical biomarker IP25 has been widely applied in the reconstruction of Arctic sea ice, yet its source remains undetermined. Here, the authors report the identification of IP25 in common pan-Arctic sea ice diatoms, thus establishing its applicability as a palaeo Arctic sea ice proxy. | | 18 June 2014 | doi: 10.1038/ncomms5197 | | Earth Sciences Biogeochemistry Climate science | Cell cycle transition from S-phase to G1 in Caulobacter is mediated by ancestral virulence regulators OPEN | | Coralie Fumeaux, Sunish Kumar Radhakrishnan, Silvia Ardissone, Laurence Théraulaz, Antonio Frandi, Daniel Martins, Jutta Nesper, Sören Abel, Urs Jenal and Patrick H. Viollier | | The bacterium Caulobacter crescentus divides asymmetrically to generate a replicative stalk cell and a quiescent swarmer cell. Fumeaux et al. show that MucR zinc-finger transcription factors, which regulate virulence in other species, also control re-entry into quiescence in Caulobacter. | | 18 June 2014 | doi: 10.1038/ncomms5081 | | Biological Sciences Cell biology Microbiology
Molecular biology | Laser light triggers increased Raman amplification in the regime of nonlinear Landau damping | | S. Depierreux, V. Yahia, C. Goyon, G. Loisel, P. -E. Masson-Laborde, N. Borisenko, A. Orekhov, O. Rosmej, T. Rienecker and C. Labaune | | Stimulated Raman scattering is one of the methods being explored to generate ultrahigh intensity short laser pulses. Depierreux et al. explore a new regime, also relevant to inertial confinement thermonuclear fusion, in which nonlinear kinetic response of a hot plasma enhances Raman amplification. | | 18 June 2014 | doi: 10.1038/ncomms5158 | | Physical Sciences Fluids and plasma physics
Optical physics | Functional links between stability and reactivity of strontium ruthenate single crystals during oxygen evolution | | Seo Hyoung Chang, Nemanja Danilovic, Kee-Chul Chang, Ram Subbaraman, Arvydas P. Paulikas, Dillon D. Fong, Matthew J. Highland, Peter M. Baldo, Vojislav R. Stamenkovic, John W. Freeland, Jeffrey A. Eastman and Nenad M. Markovic | | Understanding structure–function relationships at oxide-solution interfaces is highly desirable. Here, Chang et al. study the oxygen evolution reaction on strontium ruthenate single-crystal films in alkaline environments, and establish relationships between conductivity, stability and activity of the catalysts. | | 18 June 2014 | doi: 10.1038/ncomms5191 | | Chemical Sciences Catalysis Materials science | Enhanced carrier multiplication in engineered quasi-type-II quantum dots OPEN | | Claudiu M. Cirloganu, Lazaro A. Padilha, Qianglu Lin, Nikolay S. Makarov, Kirill A. Velizhanin, Hongmei Luo, Istvan Robel, Jeffrey M. Pietryga and Victor I. Klimov | | Carrier multiplication can improve the performance of solar cells, but its efficiency is still not high enough to considerably increase the power output of practical devices. Cirloganu et al. show that appropriately designed core-shell quantum dots can enhance the carrier multiplication yield four-fold. | | 18 June 2014 | doi: 10.1038/ncomms5148 | | Physical Sciences Nanotechnology Optical physics | | | | | | | | | Latest Corrigendum | | | | Corrigendum: The seco-iridoid pathway from Catharanthus roseus | | Karel Miettinen, Lemeng Dong, Nicolas Navrot, Thomas Schneider, Vincent Burlat, Jacob Pollier, Lotte Woittiez, Sander van der Krol, Raphaël Lugan, Tina Ilc, Robert Verpoorte, Kirsi-Marja Oksman-Caldentey, Enrico Martinoia, Harro Bouwmeester, Alain Goossens, Johan Memelink and Danièle Werck-Reichhart | | 24 June 2014 | doi: 10.1038/ncomms5175 | | Biological Sciences Bioengineering Plant sciences | | | | | Advertisement | | Nature Structural & Molecular Biology FOCUS ON UBIQUITIN
Ubiquitin and ubiquitin-like proteins have central roles in regulating cellular processes and homeostasis. This Focus examines our understanding of the ubiquitination reaction and the mechanisms by which ubiquitin and related modifications affect key cellular functions.
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