Results 21 to 30 of about 129,543 (335)

Novel regulation of mitotic exit by the Cdc42 effectors Gic1 and Gic2 [PDF]

open access: yes, 2004
Copyright @ The Rockefeller University PressThe guanine nucleotide exchange factor Cdc24, the GTPase Cdc42, and the Cdc42 effectors Cla4 and Ste20, two p21-activated kinases, form a signal transduction cascade that promotes mitotic exit in yeast.
Höfken, T, Schiebel, E
core   +2 more sources

Ubiquitination-Dependent Regulation of Small GTPases in Membrane Trafficking: From Cell Biology to Human Diseases

open access: yesFrontiers in Cell and Developmental Biology, 2021
Membrane trafficking is critical for cellular homeostasis, which is mainly carried out by small GTPases, a class of proteins functioning in vesicle budding, transport, tethering and fusion processes. The accurate and organized membrane trafficking relies
Zehui Lei   +5 more
doaj   +1 more source

Regulation of polarised growth in fungi [PDF]

open access: yes, 2008
Polarised growth in fungi occurs through the delivery of secretory vesicles along tracks formed by cytoskeletal elements to specific sites on the cell surface where they dock with a multiprotein structure called the exocyst before fusing with the ...
Adamo   +112 more
core   +1 more source

The Small GTPases in Fungal Signaling Conservation and Function

open access: yesCells, 2021
Monomeric GTPases, which belong to the Ras superfamily, are small proteins involved in many biological processes. They are fine-tuned regulated by guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs).
Mitzuko Dautt-Castro   +2 more
doaj   +1 more source

Molecular architecture of Gαo and the structural basis for RGS16-mediated deactivation [PDF]

open access: yes, 2008
Heterotrimeric G proteins relay extracellular cues from heptahelical transmembrane receptors to downstream effector molecules. Composed of an α subunit with intrinsic GTPase activity and a βγ heterodimer, the trimeric complex dissociates upon receptor ...
Berman   +34 more
core   +4 more sources

GAP activity, but not subcellular targeting, is required for Arabidopsis RanGAP cellular and developmental functions [PDF]

open access: yes, 2015
The Ran GTPase activating protein (RanGAP) is important to Ran signaling involved in nucleocytoplasmic transport, spindle organization, and postmitotic nuclear assembly.
Boruc, Joanna   +6 more
core   +2 more sources

RAP1GAP (RAP1 GTPase activating protein) [PDF]

open access: yesAtlas of Genetics and Cytogenetics in Oncology and Haematology, 2011
Review on RAP1GAP (RAP1 GTPase activating protein), with data on DNA, on the protein encoded, and where the gene is implicated.
Chen, Z, Shao, X
openaire   +2 more sources

Specific Rab GTPase-activating proteins define the Shiga toxin and epidermal growth factor uptake pathways [PDF]

open access: yes, 2007
Rab family guanosine triphosphatases (GTPases) together with their regulators define specific pathways of membrane traffic within eukaryotic cells. In this study, we have investigated which Rab GTPase-activating proteins (GAPs) can interfere with the ...
Barr, Francis A.   +5 more
core   +2 more sources

p190RhoGAPs, the ARHGAP35- and ARHGAP5-Encoded Proteins, in Health and Disease

open access: yesCells, 2019
Small guanosine triphosphatases (GTPases) gathered in the Rat sarcoma (Ras) superfamily represent a large family of proteins involved in several key cellular mechanisms.
Capucine Héraud   +3 more
doaj   +1 more source

Computational model explains high activity and rapid cycling of Rho GTPases within protein complexes. [PDF]

open access: yesPLoS Computational Biology, 2006
Formation of multiprotein complexes on cellular membranes is critically dependent on the cyclic activation of small GTPases. FRAP-based analyses demonstrate that within protein complexes, some small GTPases cycle nearly three orders of magnitude faster ...
Andrew B Goryachev, Alexandra V Pokhilko
doaj   +1 more source

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