Results 1 to 10 of about 372,429 (303)

The effector domain of Rab6, plus a highly hydrophobic C terminus, is required for Golgi apparatus localization [PDF]

open access: yes, 1994
C-terminal lipid modifications are essential for the interaction of Ras-related proteins with membranes. While all Ras proteins are farnesylated and some palmitoylated, the majority of other Ras-related proteins are geranylgeranylated.
Beranger, F.   +4 more
core   +1 more source

Quantification of spatiotemporal patterns of Ras isoform expression during development [PDF]

open access: yes, 2017
Ras proteins are important signalling hubs frequently dysregulated in cancer and in a group of developmental disorders called Rasopathies. Three Ras genes encode four proteins that differentially contribute to these phenotypes.
Coulson, JM, Newlaczyl, AU, Prior, IA
core   +2 more sources

Role of PINCH and Its Partner Tumor Suppressor Rsu-1 in Regulating Liver Size and Tumorigenesis [PDF]

open access: yes, 2013
Particularly interesting new cysteine-histidine-rich protein (PINCH) protein is part of the ternary complex known as the IPP (integrin linked kinase (ILK)-PINCH-Parvin-α) complex.
Bhave, Vishakha S.   +8 more
core   +6 more sources

Purification and characterization of human H-RAS proteins expressed in Escherichia coli [PDF]

open access: yes, 1985
The full-length normal and T24 mutant human H-ras proteins and two truncated derivatives of the T24 mutant were expressed efficiently in Escherichia coli. The proteins accumulated to 1 to 5% of total cellular protein, and each was specifically recognized
Gross, M.   +7 more
core   +1 more source

Thematic review series: Lipid Posttranslational Modifications CAAX modification and membrane targeting of Ras

open access: yesJournal of Lipid Research, 2006
Proteins that terminate with a consensus sequence known as CAAX undergo a series of posttranslational modifications that include polyisoprenylation, endoproteolysis, and carboxyl methylation.
Latasha P. Wright, Mark R. Philips
doaj   +1 more source

Regulation of Ras Signaling by S-Nitrosylation

open access: yesAntioxidants, 2023
Ras are a family of small GTPases that function as signal transduction mediators and are involved in cell proliferation, migration, differentiation and survival.
Sónia Simão   +3 more
doaj   +1 more source

Dissecting the different biological effects of oncogenic Ras isoforms in cancer cell lines: could stimulation of oxidative stress be the one more weapon of H-Ras? Regulation of oxidative stress and Ras biological effects [PDF]

open access: yes, 2012
Ras proteins are small GTPase functioning as molecular switches that, in response to particular extracellular signalling, as growth factors, activate a diverse array of intracellular effector cascades regulating cell proliferation, differentiation and ...
BELLAVIA, Maurizio   +6 more
core   +1 more source

Activation of Ras requires the ERM-dependent link of actin to the plasma membrane.

open access: yesPLoS ONE, 2011
BackgroundReceptor tyrosine kinases (RTKs) participate in a multitude of signaling pathways, some of them via the small G-protein Ras. An important component in the activation of Ras is Son of sevenless (SOS), which catalyzes the nucleotide exchange on ...
Tobias Sperka   +6 more
doaj   +1 more source

Dominant yeast and mammalian RAS mutants that interfere with the CDC25-dependent activation of wild-type RAS in Saccharomyces cerevisiae [PDF]

open access: yes, 1989
Two mutant alleles of RAS2 were discovered that dominantly interfere with wild-type RAS function in the yeast Saccharomyces cerevisiae. An amino acid substitution which caused the dominant interference was an alanine for glycine at position 22 or a ...
Powers, S.   +2 more
core   +1 more source

Targeting RAS phosphorylation in cancer therapy: Mechanisms and modulators

open access: yesActa Pharmaceutica Sinica B, 2021
RAS, a member of the small GTPase family, functions as a binary switch by shifting between inactive GDP-loaded and active GTP-loaded state. RAS gain-of-function mutations are one of the leading causes in human oncogenesis, accounting for ∼19% of the ...
Yuran Qiu   +10 more
doaj   +1 more source

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