Results 41 to 50 of about 1,383 (257)

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Supersymmetric grand unification

open access: yes, 2008
After a brief discussion of motivations and prototype models, we review recent studies of model building and of proton decay in supersymmetric grand unification. A new effect is mentioned for ΔB ≠ 0 four-scalar interactions induced by an intermediate scale (1010 ∼ 1012 GeV) supersymmetry breaking.
openaire   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Probing grand unification with quantum sensors

open access: yesPhysics Letters B
We discuss how grand unification can be probed with experiments at low energies using quantum sensors. Specifically, we show that scalar multiplets coupled to the gauge sector of a grand unified theory provide a mechanism for a time-varying unified ...
Xavier Calmet, Nathaniel Sherrill
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Warped supersymmetric grand unification [PDF]

open access: yesPhysical Review D, 2003
41 pages, LaTeX, version to appear in Phys.
Goldberger, Walter D.   +2 more
openaire   +2 more sources

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Seeing higher-dimensional grand unification in primordial non-gaussianities

open access: yesJournal of High Energy Physics, 2019
The observed low-energy values of the SU(3) × SU(2) × U(1) gauge couplings, extrapolated via the minimal Standard Model Renormalization Group evolution, hint at the exciting possibility of a Grand Unified Theory (GUT) at M U ∼ 1014 GeV — a scale, however,
Soubhik Kumar, Raman Sundrum
doaj   +1 more source

Nilpotent symmetries as a mechanism for Grand Unification

open access: yesJournal of High Energy Physics, 2021
In the classic Coleman-Mandula no-go theorem which prohibits the unification of internal and spacetime symmetries, the assumption of the existence of a positive definite invariant scalar product on the Lie algebra of the internal group is essential.
Lars Andersson   +2 more
doaj   +1 more source

Grand unification of the sterile neutrino [PDF]

open access: yesPhysics Letters B, 1998
5 pages, Revtex; Typos in the values of parameters in the table ...
Brahmachari, Biswajoy   +1 more
openaire   +2 more sources

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