Results 21 to 30 of about 6,323 (205)

Ukraine: Sleepwalking into the Unknown

open access: yesCadmus, 2022
The article raises some fundamental questions concerning the Ukraine-Russia war: why is the UN not intervening to bring peace? What does the West want? These are all questions that we should be asking urgently, but don’t.
Renzo Cianfanelli
doaj  

Isolation and characterization of monoacetyldiglycerides from bovine udder

open access: yesJournal of Lipid Research, 1999
Monoacetyldiglycerides (MADGs) were isolated from an animal tissue, bovine udder, by solvent extraction and silica gel column chromatography. Monoacetyldiglyceride structures were identified using a variety of 1-D and 2-D NMR techniques and collision ...
Jin-Kyung Limb   +3 more
doaj   +1 more source

Switching to Rac and Rho [PDF]

open access: yesStructure, 1995
Could the recent elucidation of the structure of the Rap-Raf complex have been the first glimpse of a universal arrangement between GTPase switches and kinase cascades, as a number of recent reports show that Ras is not unique in its ability to start a signalling 'chain reaction'?
Block, Christoph, Wittinghofer, Alfred
openaire   +2 more sources

Cytotoxic Alkylynols of the Sponge Cribrochalina vasculum: Structure, Synthetic Analogs and SAR Studies

open access: yesMarine Drugs, 2022
A series of twenty-three linear and branched chain mono acetylene lipids were isolated from the Caribbean Sea sponge Cribrochalina vasculum. Seventeen of the compounds, 1–17, are new, while six, 18–23, were previously characterized from the same sponge ...
Dimitry Kovalerchik   +7 more
doaj   +1 more source

Structural engineering applications of recycled aggregate concrete: Seismic performance, guidelines, projects and demonstrations

open access: yesCase Studies in Construction Materials, 2022
In this paper, the most-concerned questions of recycled aggregate concrete (RAC) application, i.e., the structural safety performance, the availability of design code and project experience, and ecological and economic costs, are overviewed, aiming to ...
Jianzhuang Xiao   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

The Rac-FRET Mouse Reveals Tight Spatiotemporal Control of Rac Activity in Primary Cells and Tissues

open access: yesCell Reports, 2014
The small G protein family Rac has numerous regulators that integrate extracellular signals into tight spatiotemporal maps of its activity to promote specific cell morphologies and responses.
Anna-Karin E. Johnsson   +15 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

open access: yesFEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt   +8 more
wiley   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

open access: yesMolecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi   +6 more
wiley   +1 more source

Rac in the Act of Forgetting [PDF]

open access: yesCell, 2010
Forgetting has been thought to occur as a result of the natural decay of the neuronal changes induced by learning or because of interference from other cognitive functions. In this issue, Shuai et al. (2010) find that the small G protein Rac may function as a switch for remembering versus forgetting.
openaire   +2 more sources

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