Results 41 to 50 of about 542,620 (267)
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS 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
A GEOMETRICAL PARTICLE MODEL FOR ANYONS [PDF]
Modern Physics Letters A, 1999 We consider the simplest geometrical particle model associated with light-like curves in (2+1) dimensions. The action is proportional to the pseudo-arc length of the particle's path. We show that under quantization, it yields the (2+1)-dimensional anyonic field equation supplemented with a Majorana-like relation on mass and spin, i.e. mass × spin =α2,
Nersessian, A., Ramos, E.
openaire +2 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
A particle-core model for inhomogeneous and mismatched charged particle beams
AIP Advances, 2017 This work presents a particle-core model for an inhomogeneous and mismatched nonneutral charged particle beam. The beam is azimuthally symmetric, initially cold, and is confined by an external constant magnetic field inside a cylindrical conducting pipe.
R. P. Nunes
doaj +1 more source
A particle model of the Stefan problem [PDF]
Computer Methods in Applied Mechanics and Engineering, 1978 Abstract The melting of triangular and rectangular solids is analyzed by means of new particle-type models. Heating is defined in terms of the increase of a particle's velocity, while temperature is defined in terms of a particle's kinetic energy. Computer examples are given of slow heating, fast heating, heating from above and heating from below. In
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FEBS 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
Modeling and experimental analysis of particle damping phononic crystal plate
AIP Advances, 2021 A phononic crystal with particle assembly dampers was constructed. A high-speed camera was used to record and observe the vibration phenomenon of the particle assembly under external excitation.
Yuanchao Zhang +5 more
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A stringy model of pointlike particles
Nuclear Physics B, 2022 A previous supersymmetric preon scenario for visible matter particles is extended to the dark sector. In addition, the scenario is reformulated as a Double Field Theory (DFT) with four extra dimensions, to avoid a singular Big Bang in cosmology. T-duality and doubled local Lorentz symmetry of the model are genuine stringy properties.
openaire +4 more sources
Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
The thermal-statistical model for particle production
EPJ Web of Conferences, 2010 We introduce the thermal statistical model for particle production and its applications to heavy-ion collision experiments. We focus on the aspects related to chemical equilibrium, in particular on particle yields.
Cleymans J.
doaj +1 more source