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    Kuriyama et al. reveal that the phospholipid lysophosphatidic acid promotes the collective migration of Xenopus neural crest cells by downregulating the surface expression of N-cadherin, granting the cells fluid-like properties that enhance their movement through embryonic tissues. Neural crest cell membranes are labeled yellow, protrusions are labeled red, and nuclei are labeled blue.
    Image © 2014 Kuriyama et al.
    See page 113.

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ISSN 0021-9525
EISSN 1540-8140
In this Issue

In This Issue

In Focus

Quantitative analyses and computer modeling reveal how a “molecular lawn” fine-tunes the interactions between kinetochores and microtubules.

People & Ideas

Kornbluth’s laboratory studies cell cycle and apoptosis in cancer cells and Xenopus egg extracts.

Review

Report

Biphasic activation of Cdc42 by Bud3 and then Cdc24 during G1 of the yeast cell cycle is necessary for assembly of a proper bud site.

Article

DNA double-strand breaks and chromosomal aberrations after treatment with N-alkylating agents likely arise as a result of replication fork collision with single-strand breaks generated during base excision repair.

Accurate regulation of kinetochore–microtubule affinity is driven by incremental phosphorylation of an NDC80 molecular “lawn,” in which NDC80–microtubule bonds reorganize dynamically in response to the number and stability of microtubule attachments.

Pom1 regulation of Cdr2 membrane association and interaction with Mid1 prevents Cdr2 assembly into stable nodes in the cell tip region, which ensures proper positioning of cytokinetic ring precursors and accurate division plane positioning in fission yeast.

Cytosolic phosphatidic acid phospholipase A1 interacts with COPII protein family members and is required for the anterograde trafficking of GPCRs.

A Rac1–Aurora A–MCAK signaling pathway mediates endothelial cell polarization and directional migration by promoting regional differences in microtubule dynamics in the leading and trailing cell edges.

Neural crest epithelial–mesenchymal transition (EMT) and collective cell migration rely on a solid-to-liquid-like transition triggered by internalization of N-cadherin downstream of lysophosphatidic acid receptor 2.

The scaffold protein ANI-2 promotes germ cell syncytial organization and compensates for the mechanical stress associated with oogenesis by conferring stability and elasticity to germ cell intercellular bridges.

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