Table of contents


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Editorial

Good review p371

doi:10.1038/ncb0408-371

Much has been said about alternatives and enhancements to 'single-blind' peer review; but what actually constitutes a good referee report?


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News and Views

Neurogenesis directed by Sirt1 pp373 - 374

Sergiy Libert, Dena Cohen & Leonard Guarente

doi:10.1038/ncb0408-373

Differentiation of neuronal stem cells into astrocytes or neurons is important in maintaining brain function. Oxidative stress and inflammation are now shown to bias differentiation toward astrocytes by modulating activity of the anti-ageing gene Sirt1. These findings link a longevity gene to the activity of neuronal stem cells and their response to stress.


Sophistications of cell sorting pp375 - 377

Jeremy B.A. Green

doi:10.1038/ncb0408-375

The self-sorting of early embryonic cells is mediated not only by pure differential adhesion but also involves other processes. Direct force measurements reveal the role of cell-cortical tension, whereas epithelial-wrapping dominates the sorting of enclosed mesenchymal cells.


BRCA1 and stem cells: tumour typecasting pp377 - 379

Matthew J. Smalley, Jorge S. Reis-Filho & Alan Ashworth

doi:10.1038/ncb0408-377

Phenotypic variation between tumour types is likely to reflect the nature of the cell of origin and the genes involved in pathogenesis. Compared with most sporadic breast cancers, those arising in carriers of BRCA1 mutations usually have distinctive pathological characteristics. A new study suggests that a role for BRCA1 in the determination of stem-cell fate may explain this phenomenon.


Dam1 complexes go it alone on disassembling microtubules pp379 - 381

Melissa K. Gardner & David J. Odde

doi:10.1038/ncb0408-379

Kinetochores maintain a mechanical grip on disassembling microtubule plus ends, possibly through a 16-member Dam1 ring that acts as a sliding clamp. It turns out, however, that a ring is not required for maintaining grip: individual Dam1 complexes in vitro can diffuse on the microtubule lattice and track shortening microtubule tips.


Securin' M-phase entry pp381 - 383

Mark J. Solomon & Janet L. Burton

doi:10.1038/ncb0408-381

The anaphase-promoting complex (APC) mediates the ubiquitination and degradation of key M-phase regulators, including cyclins and the anaphase inhibitor securin. Intriguingly, securin can also inhibit the degradation of cyclin B. This competition between substrates permits the accumulation of enough cyclin to drive entry into M phase.


STIM1 tracks growing microtubule ends p384

Andrew Jermy

doi:10.1038/ncb0408-384


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Articles

Sirt1 contributes critically to the redox-dependent fate of neural progenitors pp385 - 394

Timour Prozorovski, Ulf Schulze-Topphoff, Robert Glumm, Jan Baumgart, Friederike Schröter, Olaf Ninnemann, Elise Siegert, Ivo Bendix, Oliver Brüstle, Robert Nitsch, Frauke Zipp & Orhan Aktas

doi:10.1038/ncb1700

See also: News and Views by Libert et al.


Inn1 couples contraction of the actomyosin ring to membrane ingression during cytokinesis in budding yeast pp395 - 406

Alberto Sanchez-Diaz, Vanessa Marchesi, Stephen Murray, Richard Jones, Gislene Pereira, Ricky Edmondson, Terry Allen & Karim Labib

doi:10.1038/ncb1701


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Letters

Phosphoregulation and depolymerization-driven movement of the Dam1 complex do not require ring formation pp407 - 414

Daniel R. Gestaut, Beth Graczyk, Jeremy Cooper, Per O. Widlund, Alex Zelter, Linda Wordeman, Charles L. Asbury & Trisha N. Davis

doi:10.1038/ncb1702

See also: News and Views by Gardner & Odde


EB1 regulates microtubule dynamics and tubulin sheet closure in vitro pp415 - 421

Benjamin Vitre, Frédéric M. Coquelle, Claire Heichette, Cyrille Garnier, Denis Chrétien & Isabelle Arnal

doi:10.1038/ncb1703


The NHL-domain protein Wech is crucial for the integrin–cytoskeleton link pp422 - 428

Birgit Löer, Reinhard Bauer, Roland Bornheim, Jessica Grell, Elisabeth Kremmer, Waldemar Kolanus & Michael Hoch

doi:10.1038/ncb1704


Tensile forces govern germ-layer organization in zebrafish pp429 - 436

M. Krieg, Y. Arboleda-Estudillo, P.-H. Puech, J. Käfer, F. Graner, D. J. Müller & C.-P. Heisenberg

doi:10.1038/ncb1705

See also: News and Views by Green


elipsa is an early determinant of ciliogenesis that links the IFT particle to membrane-associated small GTPase Rab8 pp437 - 444

Yoshihiro Omori, Chengtian Zhao, Arunesh Saras, Saikat Mukhopadhyay, Woong Kim, Takahisa Furukawa, Piali Sengupta, Alexey Veraksa & Jarema Malicki

doi:10.1038/ncb1706





Drosophila short neuropeptide F signalling regulates growth by ERK-mediated insulin signalling pp468 - 475

Kyu-Sun Lee, O-Yu Kwon, Joon H. Lee, Kisang Kwon, Kyung-Jin Min, Sun-Ah Jung, Ae-Kyeong Kim, Kwan-Hee You, Marc Tatar & Kweon Yu

doi:10.1038/ncb1710


A bistable Rb–E2F switch underlies the restriction point pp476 - 482

Guang Yao, Tae Jun Lee, Seiichi Mori, Joseph R. Nevins & Lingchong You

doi:10.1038/ncb1711




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Erratum

Erratum p497

doi:10.1038/ncb0408-497a


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Corrigendum

Corrigendum p497

doi:10.1038/ncb0408-497b


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