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    On the cover
    A cancer cell (red) extends a long invadopodium through a matrigel basement membrane (green). Schoumacher et al. reveal how the actin, microtubule, and vimentin cytoskeletons cooperate to drive this initial step of tumor metastasis.
    See page 541.

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ISSN 0021-9525
EISSN 1540-8140
In this Issue

In This Issue

In Focus

Protein that controls maturation of bone-building cells might be disease culprit.

People & Ideas

Jacobs-Wagner has been at the forefront of a revolution in bacterial cell biology.

Editorial

Universal public access mandates will reveal the value of biomedical research journals.

Review

Report

Functional diversity of histone H1 variants may be caused by differences in phosphorylation during interphase.

Defects in lymphangiogenesis are added to the broad clinical manifestations of DiGeorge syndrome, caused by deletion of the T box transcription factor Tbx1.

Article

Mutant huntingtin prevents interaction of the DNA damage repair complex component Ku70 with damaged DNA, blocking repair of double-strand breaks.

Computational modeling and quantitative analysis show that although accumulation of repair complexes can take hours, the individual components rapidly exchange between the nucleoplasm and DNA damage sites.

Interpolar microtubules are sorted by the directional instability resulting from antagonistic molecular motors, not a stable balance of force.

GPR-1/2 (regulators of Gα signaling necessary for asymmetric cell division) receives a positional cue from Let-99, resulting in its appropriate distribution around the posterior cortex.

A conserved patch of amino acids in the globular tail of type V myosin binds She3p to localize ASH1 mRNA to the bud of dividing yeast cells.

A component of the rough ER, SUN domain protein osteopotentia, regulates expansion of this organelle in osteoblasts during skeletal development and regeneration.

Apo2 proteins interact with chaperone Unc45b (but not Hsp90) and are required for correct zebrafish skeletal musculature and heart function.

Microtubules and intermediate filaments cooperate with actin and other components of filopodia during invadopodia maturation.

The EGFR kinase inhibitor RALT/MIG6 also functions as an endocytic adaptor to promote receptor internalization by scaffolding AP-2 and intersectins.

β-Arrestin functions as a scaffold for CaMKII and the Rap guanine nucleotide exchange factor Epac to regulate signaling from β1-ARs.

Synaptic persistence is enhanced by N-cadherin, which clusters together in response to neural activity and long-term potentiation induction in dendritic spines.

A complex that localizes to the C1d central pair projection of cilia controls flagellar waveform and beat frequency in response to calcium.

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