Notch and EGFR pathway interaction regulates neural stem cell number and self-renewal

See the paper

Adan Aguirre, Maria E. Rubio & Vittorio Gallo

Specialized cellular microenvironments, or ‘niches’, modulate stem cell properties, including cell number, self-renewal and fate decisions1, 2. In the adult brain, niches that maintain a source of neural stem cells (NSCs) and neural progenitor cells (NPCs) are the subventricular zone (SVZ) of . . . → Read More: Notch and EGFR pathway interaction regulates neural stem cell number and self-renewal

Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(DeltaEFG).

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Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(DeltaEFG).
Nature. 2010 May 13;465(7295):248-51
Authors: Mulder DW, Boyd ES, Sarma R, Lange RK, Endrizzi JA, Broderick JB, Pet… . . . → Read More: Stepwise [FeFe]-hydrogenase H-cluster assembly revealed in the structure of HydA(DeltaEFG).

Oxidation of methane by a biological dicopper centre.

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Oxidation of methane by a biological dicopper centre.
Nature. 2010 May 6;465(7294):115-9
Authors: Balasubramanian R, Smith SM, Rawat S, Yatsunyk LA, Stemmler TL, Rosenzweig AC
Vast world reserves of … . . . → Read More: Oxidation of methane by a biological dicopper centre.

Quiescent haematopoietic stem cells are activated by IFN-gamma in response to chronic infection.

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Quiescent haematopoietic stem cells are activated by IFN-gamma in response to chronic infection.
Nature. 2010 Jun 10;465(7299):793-7
Authors: Baldridge MT, King KY, Boles NC, Weksberg DC, Goodell MA
. . . → Read More: Quiescent haematopoietic stem cells are activated by IFN-gamma in response to chronic infection.

The key nickel enzyme of methanogenesis catalyses the anaerobic oxidation of methane.

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The key nickel enzyme of methanogenesis catalyses the anaerobic oxidation of methane.
Nature. 2010 Jun 3;465(7298):606-8
Authors: Scheller S, Goenrich M, Boecher R, Thauer RK, Jaun B
Large amounts (e… . . . → Read More: The key nickel enzyme of methanogenesis catalyses the anaerobic oxidation of methane.

Staphylococcus epidermidis Esp inhibits Staphylococcus aureus biofilm formation and nasal colonization.

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Staphylococcus epidermidis Esp inhibits Staphylococcus aureus biofilm formation and nasal colonization.
Nature. 2010 May 20;465(7296):346-9
Authors: Iwase T, Uehara Y, Shinji H, Tajima A, Seo H, Takada K, Ag… . . . → Read More: Staphylococcus epidermidis Esp inhibits Staphylococcus aureus biofilm formation and nasal colonization.

Modulation of Shigella virulence in response to available oxygen in vivo.

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Modulation of Shigella virulence in response to available oxygen in vivo.
Nature. 2010 May 20;465(7296):355-8
Authors: Marteyn B, West NP, Browning DF, Cole JA, Shaw JG, Palm F, Mounier J, Prévost MC, San… . . . → Read More: Modulation of Shigella virulence in response to available oxygen in vivo.

Viruses in the faecal microbiota of monozygotic twins and their mothers.

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Viruses in the faecal microbiota of monozygotic twins and their mothers.
Nature. 2010 Jul 15;466(7304):334-8
Authors: Reyes A, Haynes M, Hanson N, Angly FE, Heath AC, Rohwer F, Gordon JI
Viral divers… . . . → Read More: Viruses in the faecal microbiota of monozygotic twins and their mothers.

Spatial organization of the flow of genetic information in bacteria.

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Spatial organization of the flow of genetic information in bacteria.
Nature. 2010 Jul 1;466(7302):77-81
Authors: Montero Llopis P, Jackson AF, Sliusarenko O, Surovtsev I, Heinritz J, Emonet T, Jacobs-Wagner … . . . → Read More: Spatial organization of the flow of genetic information in bacteria.

Type IIA topoisomerase inhibition by a new class of antibacterial agents.

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Type IIA topoisomerase inhibition by a new class of antibacterial agents.
Nature. 2010 Aug 19;466(7309):935-40
Authors: Bax BD, Chan PF, Eggleston DS, Fosberry A, Gentry DR, Gorrec F, Giordano I, Hann MM, He… . . . → Read More: Type IIA topoisomerase inhibition by a new class of antibacterial agents.

Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching.

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Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching.
Nature. 2010 Aug 19;466(7309):996-1000
Authors: Lee LK, Ginsburg MA, Crovace C, Donohoe M, Stock D
. . . → Read More: Structure of the torque ring of the flagellar motor and the molecular basis for rotational switching.

Laurén et al. reply

See the paper

In response to Kessels et al

Juha Laurén1, David A. Gimbel1, Haakon B. Nygaard1, John W. Gilbert1 & Stephen M. Strittmatter1

Amyloid-? oligomers are correlated with Alzheimer’s disease progression and suppress synaptic plasticity1, 2, 3. Through unbiased expression cloning, we identified cellular prion protein (PrPC) as an amyloid-? oligomer binding protein4. PrPC was necessary for acute . . . → Read More: Laurén et al. reply

The prion protein as a receptor for amyloid-beta

See the paper

Reply to Lauren et al 2009

Kessels HW, Nguyen LN, Nabavi S, Malinow R.

Increased levels of brain amyloid-beta, a secreted peptide cleavage product of amyloid precursor protein (APP), is believed to be critical in the aetiology of Alzheimer’s disease. Increased amyloid-beta can cause synaptic depression, reduce the number of spine protrusions (that . . . → Read More: The prion protein as a receptor for amyloid-beta

A novel pathway regulates memory and plasticity via SIRT1 and miR-134

See the paper

Jun Gao, Wen-Yuan Wang, Ying-Wei Mao, Johannes Gräff, Ji-Song Guan, Ling Pan, Gloria Mak, Dohoon Kim, Susan C. Su & Li-Huei Tsai

The NAD-dependent deacetylase Sir2 was initially identified as a mediator of replicative lifespan in budding yeast and was subsequently shown to modulate longevity in worms and flies1, 2. Its mammalian . . . → Read More: A novel pathway regulates memory and plasticity via SIRT1 and miR-134

Ataxin-2 intermediate-length polyglutamine expansions are associated with increased risk for ALS

See the paper

Andrew C. Elden, Hyung-Jun Kim, Michael P. Hart, Alice S. Chen-Plotkin, Brian S. Johnson, Xiaodong Fang, Maria Armakola, Felix Geser, Robert Greene, Min Min Lu, Arun Padmanabhan, Dana Clay-Falcone, Leo McCluskey, Lauren Elman, Denise Juhr, Peter J. Gruber, Udo Rüb, Georg Auburger, John Q. Trojanowski, Virginia M.-Y. Lee, Vivianna M. Van Deerlin, Nancy M. . . . → Read More: Ataxin-2 intermediate-length polyglutamine expansions are associated with increased risk for ALS

Amygdalar and hippocampal substrates of anxious temperament differ in their heritability

See the paper

Jonathan A. Oler, Andrew S. Fox, Steven E. Shelton, Jeffrey Rogers, Thomas D. Dyer, Richard J. Davidson, Wendy Shelledy, Terrence R. Oakes, John Blangero & Ned H. Kalin

Anxious temperament (AT) in human and non-human primates is a trait-like phenotype evident early in life that is characterized by increased behavioural and physiological reactivity . . . → Read More: Amygdalar and hippocampal substrates of anxious temperament differ in their heritability

Disruption of the clock components CLOCK and BMAL1 leads to hypoinsulinaemia and diabetes

See the paper

Biliana Marcheva, Kathryn Moynihan Ramsey, Ethan D. Buhr, Yumiko Kobayashi, Hong Su, Caroline H. Ko, Ganka Ivanova, Chiaki Omura, Shelley Mo, Martha H. Vitaterna, James P. Lopez, Louis H. Philipson, Christopher A. Bradfield, Seth D. Crosby, Lellean JeBailey, Xiaozhong Wang, Joseph S. Takahashi & Joseph Bass

The molecular clock maintains energy constancy by producing circadian . . . → Read More: Disruption of the clock components CLOCK and BMAL1 leads to hypoinsulinaemia and diabetes

Regulation of parkinsonian motor behaviours by optogenetic control of basal ganglia circuitry

See the paper

Alexxai V. Kravitz, Benjamin S. Freeze, Philip R. L. Parker, Kenneth Kay, Myo T. Thwin, Karl Deisseroth & Anatol C. Kreitzer

Neural circuits of the basal ganglia are critical for motor planning and action selection1, 2, 3. Two parallel basal ganglia pathways have been described4, and have been proposed to exert opposing influences on motor . . . → Read More: Regulation of parkinsonian motor behaviours by optogenetic control of basal ganglia circuitry

Sparse coding and high-order correlations in fine-scale cortical networks

See the paper

Ifije E. Ohiorhenuan, Ferenc Mechler, Keith P. Purpura, Anita M. Schmid, Qin Hu & Jonathan D. Victor

Connectivity in the cortex is organized at multiple scales1, 2, 3, 4, 5, suggesting that scale-dependent correlated activity is particularly important for understanding the behaviour of sensory cortices and their function in stimulus encoding. We . . . → Read More: Sparse coding and high-order correlations in fine-scale cortical networks

Binary nanocrystal superlattice membranes self-assembled at the liquid–air interface

Binary nanocrystal superlattice membranes self-assembled at the liquid–air interface

Nature 466, 474 (2010). doi:10.1038/nature09188

Authors: Angang Dong, Jun Chen, Patrick M. Vora, James M. Kikkawa & Christopher B. Murray
The spontaneou… . . . → Read More: Binary nanocrystal superlattice membranes self-assembled at the liquid–air interface

Temperature-controlled organic carbon mineralization in lake sediments

Temperature-controlled organic carbon mineralization in lake sediments

Nature 466, 478 (2010). doi:10.1038/nature09186

Authors: Cristian Gudasz, David Bastviken, Kristin Steger, Katrin Premke, Sebastian Sobek & Lars J. Tranvik
Peatlands, soils… . . . → Read More: Temperature-controlled organic carbon mineralization in lake sediments

Coupled dynamics of body mass and population growth in response to environmental change

Coupled dynamics of body mass and population growth in response to environmental change

Nature 466, 482 (2010). doi:10.1038/nature09210

Authors: Arpat Ozgul, Dylan Z. Childs, Madan K. Oli, Kenneth B. Armitage, Daniel T. Blumstein, Lucretia E. Olso… . . . → Read More: Coupled dynamics of body mass and population growth in response to environmental change

Anti-diabetic drugs inhibit obesity-linked phosphorylation of PPAR? by Cdk5

Anti-diabetic drugs inhibit obesity-linked phosphorylation of PPARγ by Cdk5

Nature 466, 451 (2010). doi:10.1038/nature09291

Authors: Jang Hyun Choi, Alexander S. Banks, Jennifer L. Estall, Shingo Kajimura, Pontus Boström, Dina Laznik, Jo… . . . → Read More: Anti-diabetic drugs inhibit obesity-linked phosphorylation of PPAR? by Cdk5

Start/stop signals emerge in nigrostriatal circuits during sequence learning

Start/stop signals emerge in nigrostriatal circuits during sequence learning

Nature 466, 457 (2010). doi:10.1038/nature09263

Authors: Xin Jin & Rui M. Costa
Learning new action sequences subserves a plethora of different abilities such as esca… . . . → Read More: Start/stop signals emerge in nigrostriatal circuits during sequence learning

An intensity map of hydrogen 21-cm emission at redshift z???0.8

An intensity map of hydrogen 21-cm emission at redshift z ≈ 0.8

Nature 466, 463 (2010). doi:10.1038/nature09187

Authors: Tzu-Ching Chang, Ue-Li Pen, Kevin Bandura & Jeffrey B. Peterson
Observations of 21-cm radio emission by … . . . → Read More: An intensity map of hydrogen 21-cm emission at redshift z???0.8

Lunar apatite with terrestrial volatile abundances

Lunar apatite with terrestrial volatile abundances

Nature 466, 466 (2010). doi:10.1038/nature09274

Authors: Jeremy W. Boyce, Yang Liu, George R. Rossman, Yunbin Guan, John M. Eiler, Edward M. Stolper & Lawrence A. Taylor
The Moon is thought to… . . . → Read More: Lunar apatite with terrestrial volatile abundances

Atomically precise bottom-up fabrication of graphene nanoribbons

Atomically precise bottom-up fabrication of graphene nanoribbons

Nature 466, 470 (2010). doi:10.1038/nature09211

Authors: Jinming Cai, Pascal Ruffieux, Rached Jaafar, Marco Bieri, Thomas Braun, Stephan Blankenburg, Matthias Muoth, Ari P. Seitsonen… . . . → Read More: Atomically precise bottom-up fabrication of graphene nanoribbons

Segregation of yeast nuclear pores

Arising from: Z. Shcheprova, S. Baldi, S. B. Frei, G. Gonnet & Y. Barral Nature454, 728–734 (2008)During mitosis in Saccharomyces cerevisiae, senescence factors such as extrachromosomal ribosomal DNA circles (ERCs) are retained in the mother cell and excluded from the bud/daughter cell. Shcheprova et al. proposed a model suggesting segregation of ERCs through their association with nuclear pore complexes (NPCs) and retention of pre-existing NPCs in the mother cell during mitosis. However, this model is inconsistent with previous data and we demonstrate here that NPCs do efficiently migrate from the mother into the bud. Therefore, binding to NPCs does not seem to explain the retention of ERCs in the mother cell. . . . → Read More: Segregation of yeast nuclear pores

Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel

See the paper

Yunkun Wu, Yi Yang, Sheng Ye & Youxing Jiang

Large-conductance Ca2+-gated K+ (BK) channels are essential for many biological processes such as smooth muscle contraction and neurotransmitter release1, 2, 3, 4. This group of channels can be activated synergistically by both voltage and intracellular Ca2+, with the large carboxy-terminal intracellular portion being responsible for Ca2+ . . . → Read More: Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel

Blindsight depends on the lateral geniculate nucleus

See the paper

Michael C. Schmid, Sylwia W. Mrowka, Janita Turchi, Richard C. Saunders, Melanie Wilke, Andrew J. Peters, Frank Q. Ye & David A. Leopold

Injury to the primary visual cortex (V1) leads to the loss of visual experience. Nonetheless, careful testing shows that certain visually guided behaviours can persist even in the absence of . . . → Read More: Blindsight depends on the lateral geniculate nucleus

Functional impact of global rare copy number variation in autism spectrum disorders

See the paper

Dalila Pinto, Alistair T. Pagnamenta, Lambertus Klei, Richard Anney, Daniele Merico, Regina Regan, Judith Conroy, Tiago R. Magalhaes, Catarina Correia, Brett S. Abrahams, Joana Almeida, Elena Bacchelli, Gary D. Bader, Anthony J. Bailey, Gillian Baird, Agatino Battaglia, Tom Berney, Nadia Bolshakova, Sven Bölte, Patrick F. Bolton, Thomas Bourgeron, Sean Brennan, Jessica Brian, Susan E. . . . → Read More: Functional impact of global rare copy number variation in autism spectrum disorders

LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium

See the paper

Jiusheng Yan & Richard W. Aldrich

Large-conductance, voltage- and calcium-activated potassium (BK, or KCa1.1) channels are ubiquitously expressed in electrically excitable and non-excitable cells1, 2, either as ?-subunit (BK?) tetramers or together with tissue specific auxiliary ?-subunits (?1–?4)3, 4, 5. Activation of BK channels typically requires coincident membrane depolarization and elevation in free cytosolic Ca2+ . . . → Read More: LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium

Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development

See the paper

Hank H. Qi, Madathia Sarkissian, Gang-Qing Hu, Zhibin Wang, Arindam Bhattacharjee, D. Benjamin Gordon, Michelle Gonzales, Fei Lan, Pat P. Ongusaha, Maite Huarte, Nasser K. Yaghi, Huijun Lim, Benjamin A. Garcia, Leonardo Brizuela, Keji Zhao, Thomas M. Roberts & Yang Shi

X-linked mental retardation (XLMR) is a complex human disease that causes intellectual disability1. Causal . . . → Read More: Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development

Start/stop signals emerge in nigrostriatal circuits during sequence learning

See the paper

Xin Jin & Rui M. Costa

Learning new action sequences subserves a plethora of different abilities such as escaping a predator, playing the piano, or producing fluent speech. Proper initiation and termination of each action sequence is critical for the organization of behaviour, and is compromised in nigrostriatal disorders like Parkinson’s . . . → Read More: Start/stop signals emerge in nigrostriatal circuits during sequence learning

NASA under the spotlight

The decade-late, over-budget arrival of SOFIA shows that NASA’s practices need to change. . . . → Read More: NASA under the spotlight

Effective approach

The controversy surrounding diabetes drugs highlights the importance of comparative studies. . . . → Read More: Effective approach

An act of distinction

Researchers and activists alike benefit from dialogue — and a clear line between legal and illegal acts. . . . → Read More: An act of distinction

Sexual selection: Networking for mates

Cited research Am. Nat. doi:10.1086/655216 (2010)Male birds trying to woo females may improve their chances by socializing more, effectively boosting their relative attractiveness.Kevin Oh, currently at Cornell University in Ithaca, New York, and Alexander Badyaev at the University . . . → Read More: Sexual selection: Networking for mates

Cancer biology: Leukaemia lockdown

Cited research Cancer Cell18, 74–87 (2010) 10.1016/j.ccr.2010.04.025The primary therapy for chronic myeloid leukaemia (CML), a blood cancer, is the drug Gleevec (imatinib mesylate), which targets a protein thought to be causative in the disease. But many patients . . . → Read More: Cancer biology: Leukaemia lockdown

Physics: Detection from a distance

Cited research Nature Photonics doi:10.1038/nphoton.2010.165 (2010)Nestled between microwaves and infrared light on the electromagnetic spectrum, terahertz waves can penetrate plastic and fabrics and are used to identify chemicals. But unlike most electromagnetic radiation, they cannot travel far through air . . . → Read More: Physics: Detection from a distance

Virology: HIV spread in 3D

Cited research Proc. Natl Acad. Sci. USA doi:10.1073/pnas.1003040107 (2010)One route HIV takes to infecting the immune system’s T cells is through dendritic cells, which present antigen on their surface. Researchers have captured three-dimensional images of single viral particles being . . . → Read More: Virology: HIV spread in 3D

Neuroscience: Versatile vision

Cited research Neuron67, 49–60 (2010) 10.1016/j.neuron.2010.05.023Perception of patterns in the eye has long been attributed solely to two types of retinal cell — the rods and cones — but a study suggests that they are not alone . . . → Read More: Neuroscience: Versatile vision

Ecology: Hunt for pathogen’s home

Cited research Ecol. Lett. doi:10.1111/j.1461-0248.2010.01513.x (2010)Many pathogens reside in ‘reservoir’ hosts before breaking out and causing infections. Predicting which hosts make good reservoirs could aid disease control. James Cronin and his team at the University of North Carolina at . . . → Read More: Ecology: Hunt for pathogen’s home

Molecular evolution: Sperm-making origins

Cited research PLoS Genet.6, e1001022 (2010) 10.1371/journal.pgen.1001022A gene similar to one in humans linked to sperm production has been found in representative organisms from each of the major animal lineages. This suggests that some components of sperm production have . . . → Read More: Molecular evolution: Sperm-making origins

Physics: Sticky balls

Cited research Phys. Rev. Lett.105, 034501 (2010) 10.1103/PhysRevLett.105.034501The popular desktop toy Newton’s cradle consists of a row of suspended metallic spheres. When the sphere at one end is pulled back and released, it strikes the row, causing the sphere . . . → Read More: Physics: Sticky balls

Neuroscience: Brain breathing

Cited research Science doi:10.1126/science.1190721 (2010)Long thought simply to provide support to neurons, star-shaped brain cells called astrocytes may also be important in regulating breathing.Alexander Gourine at University College London, Sergey Kasparov at the University of Bristol, UK, and . . . → Read More: Neuroscience: Brain breathing

Particle physics: Arctic antimatter

Cited research Phys. Rev. Lett.105, 013003 (2010) 10.1103/PhysRevLett.105.013003A cloud of antiprotons has been cooled to the coldest temperature yet, paving the way for a fundamental test of the symmetry of matter and antimatter, say Jeffrey Hangst of Aarhus University . . . → Read More: Particle physics: Arctic antimatter

Journal club

A cancer biologist marvels at how key gene regulators are still revealing hidden talents.What a difference time makes! It does not seem long since I learned, as a university student and as if it was a closed topic, that the regulation of fruitflies’ ‘homeotic’ . . . → Read More: Journal club

Diabetes drugs offered fresh start

As FDA advisers vote for restrictions on Avandia, researchers reveal a way to make such drugs safer. . . . → Read More: Diabetes drugs offered fresh start

Audit picks a bone with US relics office

Congressional watchdog unearths shortcomings at agency in charge of repatriating ancient tribal remains. . . . → Read More: Audit picks a bone with US relics office

Astronomy: Ready for boarding — finally

NASA and Germany have spent 15 years and billions of dollars on SOFIA, an airborne telescope that is about to produce its first results. Eric Hand asks whether the science will justify the cost. . . . → Read More: Astronomy: Ready for boarding — finally

Ecology: A world without mosquitoes

Eradicating any organism would have serious consequences for ecosystems — wouldn’t it? Not when it comes to mosquitoes, finds Janet Fang. . . . → Read More: Ecology: A world without mosquitoes

They come for the fiction and stay for the science

As one of the earliest participants in the Science and Entertainment Exchange Program of the US National Academy of Sciences, I would like to counter Daniel Sarewitz’s criticisms (Nature466, 27; 2010) by highlighting its success in promoting science to the public. . . . → Read More: They come for the fiction and stay for the science

Businesses and biodiversity: they would say that

Ricardo Bayon and Michael Jenkins’s Opinion article oversimplifies the role of business in addressing environmental issues (Nature466, 184–185; 2010).Biodiversity interacts with essential and interdependent planetary processes, such as climate change and nitrogen cycles, which are already approaching . . . → Read More: Businesses and biodiversity: they would say that

An independent thinker, willing to say what he thought

We object to the inaccurate and misleading characterization of William Nierenberg by Naomi Oreskes and Erik Conway (Nature465, 686–687; 2010). Their claim that the peer-review panel chaired by Nierenberg “played down the severity of acid rain” is a . . . → Read More: An independent thinker, willing to say what he thought

Tie funding to research integrity

A change in institutional culture is needed to promote responsible scientific behaviour and prevent misconduct. That’s unlikely to happen unless money is involved, say Sandra Titus and Xavier Bosch. . . . → Read More: Tie funding to research integrity

Peers nip misconduct in the bud

A new survey shows that informal intervention can often avert much irresponsible scientific behaviour, and is not as risky as people might fear, say Gerald Koocher and Patricia Keith-Spiegel. . . . → Read More: Peers nip misconduct in the bud

When doubt becomes a weapon

Brian Wynne wishes that a book on the vulnerability of scientific evidence to attack by ideologists had grappled more with the larger question of why science is such an easy target. . . . → Read More: When doubt becomes a weapon

Behind the periodic table

Aesthetically speaking, there is little to venerate in the periodic table. It is a messy family tree whose charm stems more from its quirks than its orderliness. No one doubts its mnemonic utility, but it is perverse that we regard the table both as an . . . → Read More: Behind the periodic table

Obesity: New life for antidiabetic drugs

Antidiabetic drugs that activate the protein PPAR? had a bright start but soon lost their appeal because of undesirable side effects. Subtle modifications may once again make them suitable for treating diabetes. . . . → Read More: Obesity: New life for antidiabetic drugs

Astrophysics: Broad-brush cosmos

An innovative way of mapping the large-scale structure in the Universe sidesteps the need to observe millions of galaxies individually. The approach holds promise for both astrophysical and cosmological studies. . . . → Read More: Astrophysics: Broad-brush cosmos

Climate change: Fatter marmots on the rise

Demonstrations of coupled phenotypic and demographic responses to climate change are rare. But they are much needed in formulating predictions of the effects of climate change on natural populations. . . . → Read More: Climate change: Fatter marmots on the rise

Catalysis: Fluorination made easier

By putting the pieces of a chemical puzzle into the right order, a thorny problem in catalysis has been solved. This opens the door to syntheses of molecules that contain the useful trifluoromethyl group. . . . → Read More: Catalysis: Fluorination made easier

Conservation science: Hunting the cause of a population crash

Conservation science: Hunting the cause of a population crash

Nature 466, 448 (2010). doi:10.1038/466448a

Authors: Tamás Székely & William J. Sutherland

. . . → Read More: Conservation science: Hunting the cause of a population crash

Neuroscience: Brain’s traffic lights

The organization of behaviour as sequences of actions requires proper initiation and termination of each action sequence. The neural circuit that signals instructions to start and stop is now revealed. . . . → Read More: Neuroscience: Brain’s traffic lights

Little Dutch boy

A delicate balancing act. . . . → Read More: Little Dutch boy

UK government warned over ‘catastrophic’ cuts

Royal Society predicts ‘game over’ for British science. . . . → Read More: UK government warned over ‘catastrophic’ cuts

Amazon drought raises research doubts

Studies highlight uncertainties over effects of climate change. . . . → Read More: Amazon drought raises research doubts

Animal rights ‘terror’ law challenged

Targeted researchers support the legislation, despite free-speech concerns. . . . → Read More: Animal rights ‘terror’ law challenged

Collider gets yet more exotic ‘to-do’ list

The Large Hadron Collider could throw up evidence of new physics earlier than expected. . . . → Read More: Collider gets yet more exotic ‘to-do’ list

Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development

Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development

Nature 466, 503 (2010). doi:10.1038/nature09261

Authors: Hank H. Qi, Madathia Sarkissian, Gang-Qing Hu, Zhibin Wang, Arindam Bhattacharjee, D. Benjamin Gord… . . . → Read More: Histone H4K20/H3K9 demethylase PHF8 regulates zebrafish brain and craniofacial development

PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression

PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression

Nature 466, 508 (2010). doi:10.1038/nature09272

Authors: Wen Liu, Bogdan Tanasa, Oksana V. Tyurina, Tian Yuan Zhou, Reto Gassmann, Wei Ting Liu, Kenneth A. … . . . → Read More: PHF8 mediates histone H4 lysine 20 demethylation events involved in cell cycle progression

Structural basis for the coupling between activation and inactivation gates in K+ channels

See the paper

Luis G. Cuello, Vishwanath Jogini, D. Marien Cortes, Albert C. Pan, Dominique G. Gagnon, Olivier Dalmas, Julio F. Cordero-Morales, Sudha Chakrapani, Benoît Roux & Eduardo Perozo

The coupled interplay between activation and inactivation gating is a functional hallmark of K+ channels1, 2. This coupling has been experimentally demonstrated through ion interaction effects3, 4 . . . → Read More: Structural basis for the coupling between activation and inactivation gates in K+ channels

Structural mechanism of C-type inactivation in K+ channels

See the paper

Luis G. Cuello, Vishwanath Jogini, D. Marien Cortes & Eduardo Perozo

Interconversion between conductive and non-conductive forms of the K+ channel selectivity filter underlies a variety of gating events, from flicker transitions (at the microsecond timescale) to C-type inactivation (millisecond to second timescale). Here we report the crystal structure of the Streptomyces . . . → Read More: Structural mechanism of C-type inactivation in K+ channels

Striatal microRNA controls cocaine intake through CREB signalling

See the paper

Jonathan A. Hollander, Heh-In Im, Antonio L. Amelio, Jannet Kocerha, Purva Bali, Qun Lu, David Willoughby, Claes Wahlestedt, Michael D. Conkright & Paul J. Kenny

Cocaine addiction is characterized by a gradual loss of control over drug use, but the molecular mechanisms regulating vulnerability to this process remain unclear. Here we report that . . . → Read More: Striatal microRNA controls cocaine intake through CREB signalling

A new DAF-16 isoform regulates longevity

A new DAF-16 isoform regulates longevity

Nature 466, 498 (2010). doi:10.1038/nature09184

Authors: Eun-Soo Kwon, Sri Devi Narasimhan, Kelvin Yen & Heidi A. Tissenbaum
The insulin/IGF-1 signalling (IIS) pathway has diverse roles from metabolism … . . . → Read More: A new DAF-16 isoform regulates longevity

LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium

LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium

Nature 466, 513 (2010). doi:10.1038/nature09162

Authors: Jiusheng Yan & Richard W. Aldrich
Large-conductance, voltage- and calcium-activated potassium (BK… . . . → Read More: LRRC26 auxiliary protein allows BK channel activation at resting voltage without calcium

Sensitivity to perturbations in vivo implies high noise and suggests rate coding in cortex

See the paper

Michael London, Arnd Roth, Lisa Beeren, Michael Häusser & Peter E. Latham

It is well known that neural activity exhibits variability, in the sense that identical sensory stimuli produce different responses1, 2, 3, but it has been difficult to determine what this variability means. Is it noise, or does it carry important . . . → Read More: Sensitivity to perturbations in vivo implies high noise and suggests rate coding in cortex

The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptor

See the paper

Sachiko Haga, Tatsuya Hattori, Toru Sato, Koji Sato, Soichiro Matsuda, Reiko Kobayakawa, Hitoshi Sakano, Yoshihiro Yoshihara, Takefumi Kikusui & Kazushige Touhara

Various social behaviours in mice are regulated by chemical signals called pheromones that act through the vomeronasal system1, 2, 3. Exocrine gland-secreting peptide 1 (ESP1) is a 7-kDa peptide that is . . . → Read More: The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptor

Replacing underperforming protected areas achieves better conservation outcomes

Replacing underperforming protected areas achieves better conservation outcomes

Nature 466, 365 (2010). doi:10.1038/nature09180

Authors: Richard A. Fuller, Eve McDonald-Madden, Kerrie A. Wilson, Josie Carwardine, Hedley S. Grantham, James E. M. Wa… . . . → Read More: Replacing underperforming protected areas achieves better conservation outcomes

Allelic variation in a fatty-acyl reductase gene causes divergence in moth sex pheromones

Allelic variation in a fatty-acyl reductase gene causes divergence in moth sex pheromones

Nature 466, 486 (2010). doi:10.1038/nature09058

Authors: Jean-Marc Lassance, Astrid T. Groot, Marjorie A. Liénard, Binu Antony, Christin Borgwardt, Fred… . . . → Read More: Allelic variation in a fatty-acyl reductase gene causes divergence in moth sex pheromones

Co-option of the hormone-signalling module dafachronic acid–DAF-12 in nematode evolution

Co-option of the hormone-signalling module dafachronic acid–DAF-12 in nematode evolution

Nature 466, 494 (2010). doi:10.1038/nature09164

Authors: Gilberto Bento, Akira Ogawa & Ralf J. Sommer
Morphological novelties are lineage-specific t… . . . → Read More: Co-option of the hormone-signalling module dafachronic acid–DAF-12 in nematode evolution

Presynaptic activity regulates Na+ channel distribution at the axon initial segment

See the paper

See also related paper by Grubb and Burrone

Hiroshi Kuba, Yuki Oichi & Harunori Ohmori

Deprivation of afferent inputs in neural circuits leads to diverse plastic changes in both pre- and postsynaptic elements that restore neural activity1. The axon initial segment (AIS) is the site at which neural signals arise2, 3, and should . . . → Read More: Presynaptic activity regulates Na+ channel distribution at the axon initial segment

Activity-dependent relocation of the axon initial segment fine-tunes neuronal excitability

See the paper

See also related paper by Kuba et al.

Matthew S. Grubb & Juan Burrone

In neurons, the axon initial segment (AIS) is a specialized region near the start of the axon that is the site of action potential initiation1, 2, 3, 4, 5, 6. The precise location of the AIS varies across and . . . → Read More: Activity-dependent relocation of the axon initial segment fine-tunes neuronal excitability

Blindsight depends on the lateral geniculate nucleus

Blindsight depends on the lateral geniculate nucleus

Nature 466, 373 (2010). doi:10.1038/nature09179

Authors: Michael C. Schmid, Sylwia W. Mrowka, Janita Turchi, Richard C. Saunders, Melanie Wilke, Andrew J. Peters, Frank Q. Ye & David A. Leop… . . . → Read More: Blindsight depends on the lateral geniculate nucleus

Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel

Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel

Nature 466, 393 (2010). doi:10.1038/nature09252

Authors: Yunkun Wu, Yi Yang, Sheng Ye & Youxing Jiang
Large-conductance Ca2+-gated K+ (BK) channels are essenti… . . . → Read More: Structure of the gating ring from the human large-conductance Ca2+-gated K+ channel

Planar cell polarity breaks bilateral symmetry by controlling ciliary positioning

Planar cell polarity breaks bilateral symmetry by controlling ciliary positioning

Nature 466, 378 (2010). doi:10.1038/nature09129

Authors: Hai Song, Jianxin Hu, Wen Chen, Gene Elliott, Philipp Andre, Bo Gao & Yingzi Yang
Defining the three bod… . . . → Read More: Planar cell polarity breaks bilateral symmetry by controlling ciliary positioning

Fine-tuning of pre-balanced excitation and inhibition during auditory cortical development

Yujiao J. Sun, Guangying K. Wu, Bao-hua Liu, Pingyang Li, Mu Zhou, Zhongju Xiao, Huizhong W. Tao & Li I. Zhang

Abstract

See also Dorrn et al from same issue . . . → Read More: Fine-tuning of pre-balanced excitation and inhibition during auditory cortical development

Developmental sensory experience balances cortical excitation and inhibition

Anja L. Dorrn, Kexin Yuan, Alison J. Barker, Christoph E. Schreiner & Robert C. Froemke

Abstract

See also Sun et al. from same issue . . . → Read More: Developmental sensory experience balances cortical excitation and inhibition

Members of the H3K4 trimethylation complex regulate lifespan in a germline-dependent manner in C. elegans

Members of the H3K4 trimethylation complex regulate lifespan in a germline-dependent manner in C. elegans

Nature 466, 383 (2010). doi:10.1038/nature09195

Authors: Eric L. Greer, Travis J. Maures, Anna G. Hauswirth, Erin M. Green, Dena S. Leeman, G… . . . → Read More: Members of the H3K4 trimethylation complex regulate lifespan in a germline-dependent manner in C. elegans

Global and local fMRI signals driven by neurons defined optogenetically by type and wiring

Jin Hyung Lee, Remy Durand, Viviana Gradinaru, Feng Zhang, Inbal Goshen, Dae-Shik Kim, Lief E. Fenno, Charu Ramakrishnan & Karl Deisseroth

Despite a rapidly-growing scientific and clinical brain imaging literature based on functional magnetic resonance imaging (fMRI) using blood oxygenation level-dependent (BOLD)1 signals, it remains controversial whether BOLD signals in a particular region can . . . → Read More: Global and local fMRI signals driven by neurons defined optogenetically by type and wiring

Distinct FGFs promote differentiation of excitatory and inhibitory synapses

Akiko Terauchi, Erin M. Johnson-Venkatesh, Anna B. Toth, Danish Javed, Michael A. Sutton & Hisashi Umemori

The differential formation of excitatory (glutamate-mediated) and inhibitory (GABA-mediated) synapses is a critical step for the proper functioning of the brain. An imbalance in these synapses may lead to various neurological disorders such as autism, schizophrenia, Tourette’s . . . → Read More: Distinct FGFs promote differentiation of excitatory and inhibitory synapses

Functional impact of global rare copy number variation in autism spectrum disorders

Functional impact of global rare copy number variation in autism spectrum disorders

Nature 466, 368 (2010). doi:10.1038/nature09146

Authors: Dalila Pinto, Alistair T. Pagnamenta, Lambertus Klei, Richard Anney, Daniele Merico, Regina Regan, Judith … . . . → Read More: Functional impact of global rare copy number variation in autism spectrum disorders

Control of cortical GABA circuitry development by Nrg1 and ErbB4 signalling

Pietro Fazzari, Ana V. Paternain, Manuel Valiente, Ramón Pla, Rafael Luján, Kent Lloyd, Juan Lerma, Oscar Marín & Beatriz Rico

Schizophrenia is a complex disorder that interferes with the function of several brain systems required for cognition and normal social behaviour. Although the most notable clinical aspects of the disease only become apparent during . . . → Read More: Control of cortical GABA circuitry development by Nrg1 and ErbB4 signalling

Dendritic organization of sensory input to cortical neurons in vivo

Hongbo Jia, Nathalie L. Rochefort, Xiaowei Chen & Arthur Konnerth

In sensory cortex regions, neurons are tuned to specific stimulus features. For example, in the visual cortex, many neurons fire predominantly in response to moving objects of a preferred orientation. However, the characteristics of the synaptic input that cortical neurons receive to generate . . . → Read More: Dendritic organization of sensory input to cortical neurons in vivo

The molecular basis for water taste in Drosophila

Peter Cameron, Makoto Hiroi, John Ngai & Kristin Scott

The detection of water and the regulation of water intake are essential for animals to maintain proper osmotic homeostasis1. Drosophila and other insects have gustatory sensory neurons that mediate the recognition of external water sources2, 3, 4, but little is known about the underlying . . . → Read More: The molecular basis for water taste in Drosophila

Olfactory pattern classification by discrete neuronal network states

Jörn Niessing & Rainer W. Friedrich

The categorial nature of sensory, cognitive and behavioural acts indicates that the brain classifies neuronal activity patterns into discrete representations. Pattern classification may be achieved by abrupt switching between discrete activity states of neuronal circuits, but few experimental studies have directly tested this. We gradually varied . . . → Read More: Olfactory pattern classification by discrete neuronal network states

Native GABAB receptors are heteromultimers with a family of auxiliary subunits

Jochen Schwenk, Michaela Metz, Gerd Zolles, Rostislav Turecek, Thorsten Fritzius, Wolfgang Bildl, Etsuko Tarusawa, Akos Kulik, Andreas Unger, Klara Ivankova, Riad Seddik, Jim Y. Tiao, Mathieu Rajalu, Johana Trojanova, Volker Rohde, Martin Gassmann, Uwe Schulte, Bernd Fakler & Bernhard Bettler

GABAB receptors are the G-protein-coupled receptors for ?-aminobutyric acid (GABA), the main inhibitory neurotransmitter in the . . . → Read More: Native GABAB receptors are heteromultimers with a family of auxiliary subunits

Single-molecule dynamics of gating in a neurotransmitter transporter homologue

Yongfang Zhao, Daniel Terry, Lei Shi, Harel Weinstein, Scott C. Blanchard & Jonathan A. Javitch

Neurotransmitter:Na+ symporters (NSS) remove neurotransmitters from the synapse in a reuptake process that is driven by the Na+ gradient. Drugs that interfere with this reuptake mechanism, such as cocaine and antidepressants, profoundly influence behaviour and mood. To probe . . . → Read More: Single-molecule dynamics of gating in a neurotransmitter transporter homologue

The PtdIns(3,4)P2 phosphatase INPP4A is a suppressor of excitotoxic neuronal death

Junko Sasaki, Satoshi Kofuji, Reietsu Itoh, Toshihiko Momiyama, Kiyohiko Takayama, Haruka Murakami, Shinsuke Chida, Yuko Tsuya, Shunsuke Takasuga, Satoshi Eguchi, Ken Asanuma, Yasuo Horie, Kouichi Miura, Elizabeth Michele Davies, Christina Mitchell, Masakazu Yamazaki, Hirokazu Hirai, Tadaomi Takenawa, Akira Suzuki & Takehiko Sasaki

Phosphorylated derivatives of phosphatidylinositol, collectively referred to as phosphoinositides, occur in the cytoplasmic leaflet . . . → Read More: The PtdIns(3,4)P2 phosphatase INPP4A is a suppressor of excitotoxic neuronal death