Results 71 to 80 of about 105,827 (294)

The GEF Trio controls endothelial cell size and arterial remodeling downstream of Vegf signaling in both zebrafish and cell models

Nature Communications, 2020
Arterial flow regulates artery diameter but other mechanisms may also affect this. Here, the authors show that the guanine nucleotide exchange factor Trio and GTPases Rac1 and RhoG, triggers F-actin remodeling in arterial endothelial cells, independent ...
Alina Klems, Jos van Rijssel, Anne S. Ramms, Raphael Wild, Julia Hammer, Melanie Merkel, Laura Derenbach, Laetitia Préau, Rabea Hinkel, Irina Suarez-Martinez, Stefan Schulte-Merker, Ramon Vidal, Sascha Sauer, Riikka Kivelä, Kari Alitalo, Christian Kupatt, Jaap D. van Buul, Ferdinand le Noble   +17 more
doaj   +1 more source

Membrane and Protein Interactions of the Pleckstrin Homology Domain Superfamily. [PDF]

, 2015
The human genome encodes about 285 proteins that contain at least one annotated pleckstrin homology (PH) domain. As the first phosphoinositide binding module domain to be discovered, the PH domain recruits diverse protein architectures to cellular ...
Abagyan, Ruben, Kufareva, Irina, Lenoir, Marc, Overduin, Michael   +3 more
core   +3 more sources

Sonoepigenetic Modification Mechanoprimes Early Osteogenic Commitment in Mesenchymal Stem Cells

Advanced Science, EarlyView.
Brief 10 min bursts of high frequency (10 MHz) vibrational mechanostimulation to stem cells are shown to activate their epigenetic machinery to condition their differentiation down an osteogenic lineage within just 3 days, which is much earlier than that with other forms of mechanostimuli, and without requiring any biochemical additives. Abstract Cells
Lizebona A. Ambattu, Blanca del Rosal, Carmelo Ferrai, Leslie Y. Yeo   +3 more
wiley   +1 more source

eIF2B is a decameric guanine nucleotide exchange factor with a γ2ε2 tetrameric core

Nature Communications, 2014
eIF2B facilitates and controls protein synthesis in eukaryotes by mediating guanine nucleotide exchange on its partner eIF2. We combined mass spectrometry (MS) with chemical cross-linking, surface accessibility measurements and homology modelling to ...
Y. Gordiyenko, Carla Schmidt, Martin D. Jennings, D. Matak-Vinkovic, G. Pavitt, C. Robinson   +5 more
semanticscholar   +1 more source

Solving the Structure of eIF2 Bound to eIF2B Using Cryogenic Electron Microscopy [PDF]

, 2019
Translation begins when initiation factor-2 (eIF2) delivers methionyl initiator tRNA (Met-tRNAi) to the ribosome. The exchange of GDP bound to eIF2 for GTP is a prerequisite to binding Met-tRNAi and is mediated by a second initiation factor, eIF2B ...
Kenner, Lillian
core  

Identification of Naegleria fowleri proteins linked to primary amoebic meningoencephalitis [PDF]

, 2017
Naegleria fowleri (N. fowleri) causes primary amoebic meningoencephalitis, a rapidly fatal disease of the central nervous system. N. fowleri can exist in cyst, flagellate or amoebic forms, depending on environmental conditions.
Cabral, Guy A, Jamerson, Melissa, Marciano-Cabral, Francine, Park, Jay, Schmoyer, Jacqueline A   +4 more
core   +2 more sources

Disrupting Lipid Raft Microdomains to Block Polyploid Giant Cancer Cell Budding and Enhance Radiotherapy Response

Advanced Science, EarlyView.
Radiation induces polyploid giant cancer cells (PGCCs) that regenerate tumors through virus‐like budding. This process depends on a SNCG–FLOT2–CHMP4B signaling axis functioning in lipid raft microdomains. Disrupting these domains using statins or anti‐PCSK9 antibodies blocks PGCC budding, suppresses tumor repopulation, and enhances radiotherapy ...
Zheng Deng, Haoran Sun, Jin Cheng, Ruyi Zhao, Jianzhu Xie, Yanwei Song, Yucui Zhao, Chenwei Lin, Binjie Hu, Yanping Gong, Jun Lin, Sijia He, Yuntao Luo, Minghui Zhao, Yiwei Wang, Ming Jiao, Yuqin Yang, Jikun Li, Shujie Xia, Chuanyuan Li, Qian Huang   +20 more
wiley   +1 more source

Haploinsufficiency of the Sec7 guanine nucleotide exchange factor gea1 impairs septation in fission yeast. [PDF]

PLoS ONE, 2013
Membrane trafficking is essential to eukaryotic life and is controlled by a complex network of proteins that regulate movement of proteins and lipids between organelles.
Alan M Eckler, Caroline Wilder, Antonio Castanon, Veronica M Ferris, Rachael A Lamere, Benjamin A Perrin, Ross Pearlman, Blaise White, Clifton Byrd, Nicholas Ludvik, Nona Nichols, Kristen Poole-Sumrall, Elizabeth Sztul, Melanie L Styers   +13 more
doaj   +1 more source

Myelination: all about Rac n roll. [PDF]

, 2007
During the development of the peripheral nervous system, Schwann cells select individual axons from a nerve bundle and establish a one-to-one relationship through a process termed radial sorting. Recent findings identify the Rho family GTPase Rac1 as the
Chan, Jonah
core   +2 more sources

Buried Treasure? Overlooked and Newly Discovered Evolutionary Contributions to Human Brain Diseases

Annals of Neurology, EarlyView.
Recapitulative schema of different exploratory levels of the evolutionary impact on human neurological diseases. Clinical neuroscience focuses on the mechanisms of brain function, but this approach falls short of insights into how the central nervous system (CNS) evolved, both in health and disease.
Nico J. Diederich, Martin Brüne, John S. Allen, Nicole Bender, Emiliano Bruner, Jean‐Pierre Changeux, Corrado Cali, Olga Dolgova, Anne Grünewald, Geneviève Konopka, Peng Jin, Roger Lemon, Gilberto Levy, Pierre Magistretti, Markus J. Rantala, Kathleen S. Rockland, Roger Sullivan, Annie Swanepoel, Toshiki Uchihara, Katrin Amunts, Christopher G. Goetz   +20 more
wiley   +1 more source