Rac GTPases play multiple roles in erythropoiesis

The four members of the Rac family of GTPases –Rac1, Rac2, Rac3 and RhoG – are members of the Rho superfamily that regulates the organization, dynamics, and function of the actin cytoskeleton. Rac GTPases play significant roles in many cellular processes including migration, cytokinesis, lamellipodi...

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Bibliographic Details
Main Authors: Ji, Peng, Lodish, Harvey F
Other Authors: Massachusetts Institute of Technology. Department of Biology
Format: Article
Language:en_US
Published: Ferrata Storti Foundation 2012
Online Access:http://hdl.handle.net/1721.1/74162
https://orcid.org/0000-0002-7029-7415
Description
Summary:The four members of the Rac family of GTPases –Rac1, Rac2, Rac3 and RhoG – are members of the Rho superfamily that regulates the organization, dynamics, and function of the actin cytoskeleton. Rac GTPases play significant roles in many cellular processes including migration, cytokinesis, lamellipodia formation, and cell polarity.1 Genetically modified mice deficient in each of the Racs are available;2–6 deficiency of Rac1 causes intrauterine death, whereas mice defective in Rac2, Rac3 or RhoG develop fairly normally. Rac proteins may have redundant functions in certain types of cells and unique functions in others.