Results 91 to 100 of about 97,106 (244)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Integrated real-time precise point positioning system with B2b/B2a/B1C services

open access: yesSatellite Navigation
Real-Time Precise Point Positioning (RTPPP) technology is one of the most important means of positioning and navigation, whereas this type of service requires Internet access.
Zhetao Zhang, Hao Wang, Yuanxi Yang
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Investigation of the effects of specific solar storming events on GNSS navigation systems / Charakteringų saulės audrų poveikio globalinei navigacinei palydovinei sistemai tyrimas

open access: yesAviation, 2011
Global positioning system (GPS) satellites operate at 1.2 and 1.5 GHz. The GPS signals travel through the atmosphere and are affected by space weather in the same way as other technological systems in space and on the ground.
Vilma Zubinaitė, George Preiss
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Ambiguity Resolution with Precise Point Positioning

open access: yes, 2014
Ambiguity resolution with PPP aims at effectively reducing the long convergence time. The research in this dissertation explores its potential for both dual-frequency signals and triple-frequency signals. One of the most popular PPP ambiguity resolution strategies with dual-frequency GNSS signals is to first fix the L1/L2 wide-lane ambiguities in the ...
openaire   +2 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

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