Recruitment of cortexillin into the cleavage furrow is controlled by Rac1 and IQGAP-related proteins.

Abstract excerpt

Cytokinesis in eukaryotic organisms is under the control of small GTP-binding proteins, although the underlying molecular mechanisms are not fully understood. Cortexillins are actin-binding proteins whose activity is crucial for cytokinesis in Dictyostelium. Here we show that the IQGAP-related and Rac1-binding protein DGAP1 specifically interacts with the C-terminal, actin-bundling domain of cortexillin I. Like...

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