Rho family GTPases.

@article{Hall2012RhoFG,
  title={Rho family GTPases.},
  author={Alan Hall},
  journal={Biochemical Society transactions},
  year={2012},
  volume={40 6},
  pages={
          1378-82
        }
}
  • A. Hall
  • Published 1 December 2012
  • Biology
  • Biochemical Society transactions
Rho GTPases comprise a family of molecular switches that control signal transduction pathways in eukaryotic cells. A conformational change induced upon binding GTP promotes an interaction with target (effector) proteins to generate a cellular response. A highly conserved function of Rho GTPases from yeast to humans is to control the actin cytoskeleton, although, in addition, they promote a wide range of other cellular activities. Changes in the actin cytoskeleton drive many dynamic aspects of… 

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References

SHOWING 1-10 OF 44 REFERENCES
Rho GTPases and their effector proteins.
TLDR
The main focus of this review will be Rho, Rac and Cdc42, the three best characterized mammalian Rho GTPases, though the genetic analysis of RhoGTPases in lower eukaryotes is making increasingly important contributions to this field.
Rho GTPases and the actin cytoskeleton.
TLDR
Members of the Rho family of small guanosine triphosphatases have emerged as key regulators of the actin cytoskeleton, and through their interaction with multiple target proteins, they ensure coordinated control of other cellular activities such as gene transcription and adhesion.
CZH proteins: a new family of Rho-GEFs
TLDR
The Rho family of small GTPases are important regulators of multiple cellular activities and, most notably, reorganization of the actin cytoskeleton, and members of a newly discovered family can also act as Rho-GEFs.
Rac GTPases in Human Diseases
TLDR
A new understanding of the unique and overlapping roles of Rac2 in blood cells that has developed since the generation of mice deficient in Rac1, Rac2 and Rac3 proteins is discussed and it is proposed that Rac2 mutations leading to disease be termed LAD type IV.
Activity of Rho-family GTPases during cell division as visualized with FRET-based probes
TLDR
Two types of probes are added to monitor the activity balance between guanine nucleotide exchange factors and GTPase-activating proteins to visualize the complex spatio-temporal regulation of Rho-family GTPases during cell division.
p140mDia, a mammalian homolog of Drosophila diaphanous,is a target protein for Rho small GTPase and is a ligand for profilin
TLDR
Results suggest that Rho regulates actin polymerization by targeting profilin via p140mDia beneath the specific plasma membranes.
Interaction of Rac with p67phox and regulation of phagocytic NADPH oxidase activity.
TLDR
P67phox appears to be the Rac effector protein in the NADPH oxidase complex, which enhances the activity of the enzyme nicotinamide adenine dinucleotide phosphate (reduced) (NADPH) oxidase, resulting in the production of superoxide radicals.
...
1
2
3
4
5
...