Table of contents


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Editorial

NCB demography – democracy? p937

doi:10.1038/ncb1103-937


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Perspective

The case for morphogens in plants pp939 - 943

Rishikesh P. Bhalerao & Malcolm J. Bennett

doi:10.1038/ncb1103-939


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Book Review

What is lost in translation? p944

Henry R. Bourne reviews Signal Transduction and Human Disease by Toren Finkel & J. Silvio Gutkind

doi:10.1038/ncb1103-944


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News and Views

The kinetochore NUPtials pp945 - 947

P. Todd Stukenberg & Ian G. Macara

doi:10.1038/ncb1103-945

The most interesting discoveries are often those that couple distinct fields of science in unexpected ways. The marriage of the nuclear pore complex to the kinetochore and spindle checkpoint regulation is a recent example, raising the question of why such divergent processes as mitosis and nuclear transport use common proteins.


Architects of the chromosome p947

Donald McDonald

doi:10.1038/ncb1103-947


Stuck without Traffic Jam pp948 - 949

Helen McNeill

doi:10.1038/ncb1103-948

During organogenesis different cells must recognize and adhere to each other in a complicated orchestration of cell movements that requires intricate regulation of cell adhesions. A Maf transcription factor, Traffic jam, has been found to regulate a panel of cell adhesion molecules, and the interactions between germ cells and somatic cells to shape the mature gonad.


BTB proteins as henchmen of Cul3-based ubiquitin ligases pp950 - 951

Wilhelm Krek

doi:10.1038/ncb1103-950

The choice of ubiquitination substrates of Cul1- and Cul2-based E3 ubiquitin protein ligase complexes is dictated by the identity of their substrate-specific adaptors, known as F-box and BC-box proteins, respectively. Recent work suggests that members of the large family of BTB-domain proteins define a new class of substrate-specific adaptors of Cul3-based E3 complexes. This finding places many signalling pathways in which BTB-domain proteins participate under direct control of the ubiquitination pathway.


Stem cell fusion in the brain pp952 - 954

Yevgenia Kozorovitskiy & Elizabeth Gould

doi:10.1038/ncb1103-952

Bone-marrow-derived stem cells have been shown to contribute to Purkinje neurons in the cerebellum of adult humans and mice. A new study identifies cell fusion as the mechanism underlying this phenomenon, and shows that the bone marrow cell portion of the resulting binucleate heterokaryons acquires the morphological and molecular characteristics of Purkinje neurons over time.


Plant microtubule nucleation sites: moving right along p954

Sue Wick

doi:10.1038/ncb1103-954


Three Yips for Rab recruitment pp955 - 956

Jemima Barrowman & Peter Novick

doi:10.1038/ncb1103-955

Rab GTPases function at all stages of the endocytic and exocytic pathways. Although it is clear that each Rab is required for specific transport events, the process by which they are recruited to distinct compartments along the membrane trafficking pathway has remained obscure. Recent data suggests that a member of the Yip family is important for the membrane recruitment of endosomal Rabs.


Cell of the month: An insect blood cell engulfing bacteria p957

Paul Dean

doi:10.1038/ncb1103-957


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Article

Stable reprogrammed heterokaryons form spontaneously in Purkinje neurons after bone marrow transplant pp959 - 966

James M. Weimann, Clas B. Johansson, Angelica Trejo & Helen M. Blau

doi:10.1038/ncb1053

See also: News and Views by Kozorovitskiy & Gould


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Letters

EB1 reveals mobile microtubule nucleation sites in Arabidopsis pp967 - 971

Jordi Chan, Grant M. Calder, John H. Doonan & Clive W. Lloyd

doi:10.1038/ncb1057

See also: News and Views by Wick



Load-dependent kinetics of force production by smooth muscle myosin measured with optical tweezers pp980 - 986

Claudia Veigel, Justin E. Molloy, Stephan Schmitz & John Kendrick-Jones

doi:10.1038/ncb1060


Discs-Large and Strabismus are functionally linked to plasma membrane formation pp987 - 993

Ok-Kyung Lee, Kristopher K. Frese, Jennifer S. James, Darshana Chadda, Zhi-Hong Chen, Ronald T. Javier & Kyung-Ok Cho

doi:10.1038/ncb1055


The large Maf factor Traffic Jam controls gonad morphogenesis in Drosophila pp994 - 1000

Michelle A. Li, Jeffrey D. Alls, Rita M. Avancini, Karen Koo & Dorothea Godt

doi:10.1038/ncb1058

See also: News and Views by McNeill


Targeting of protein ubiquitination by BTB–Cullin 3–Roc1 ubiquitin ligases pp1001 - 1007

Manabu Furukawa, Yizhou Joseph He, Christoph Borchers & Yue Xiong

doi:10.1038/ncb1056

See also: News and Views by Krek


Radiation-mediated proteolysis of CDT1 by CUL4–ROC1 and CSN complexes constitutes a new checkpoint pp1008 - 1015

Leigh Ann A. Higa, Ivailo S. Mihaylov, Damon P. Banks, Jianyu Zheng & Hui Zhang

doi:10.1038/ncb1061


Production of PtdInsP3 at endomembranes is triggered by receptor endocytosis pp1016 - 1022

Moritoshi Sato, Yoshibumi Ueda, Tokio Takagi & Yoshio Umezawa

doi:10.1038/ncb1054


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Brief Communication

Homologue disjunction in mouse oocytes requires proteolysis of securin and cyclin B1 pp1023 - 1025

Mary Herbert, Mark Levasseur, Hayden Homer, Katie Yallop, Alison Murdoch & Alex McDougall

doi:10.1038/ncb1062


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