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Dictyostelium chemotaxis: essential Ras activation and accessory signalling pathways for amplification

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dc.creator Van Egmond, Wouter N.
dc.creator Van Haastert, Peter J. M.
dc.creator Khanna, Ankita
dc.creator Keizer-Gunnink, Ineke
dc.creator Kataria, Rama
dc.creator Kortholt, Arjan
dc.date 2011-12-01T01:00:00Z
dc.date.accessioned 2023-01-09T12:09:27Z
dc.date.available 2023-01-09T12:09:27Z
dc.identifier ea390de7-b2ef-4b75-a8d8-80311fec8292
dc.identifier 10.1038/embor.2011.210
dc.identifier https://avesis.sdu.edu.tr/publication/details/ea390de7-b2ef-4b75-a8d8-80311fec8292/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/98499
dc.description Central to chemotaxis is the molecular mechanism by which cells exhibit directed movement in shallow gradients of a chemoattractant. We used Dictyostelium mutants to investigate the minimal requirements for chemotaxis, and identified a basal signalling module providing activation of Ras at the leading edge, which is sufficient for chemotaxis. The signalling enzymes PI3K, TorC2, PLA2 and sGC are not required for Ras activation and chemotaxis to folate or to steep gradients of cAMP, but they provide a memory of direction and improved orientation of the cell, which together increase the sensitivity about 150-fold for chemotaxis in shallow cAMP gradients.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Dictyostelium chemotaxis: essential Ras activation and accessory signalling pathways for amplification
dc.type info:eu-repo/semantics/article


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