Results 131 to 140 of about 5,576,143 (310)
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Physics Letters B, 2014 We generalize noncommutative gauge theory using Nambu-Poisson structures to obtain a new type of gauge theory with higher brackets and gauge fields. The approach is based on covariant coordinates and higher versions of the Seiberg-Witten map. We construct a covariant Nambu-Poisson gauge theory action, give its first order expansion in the Nambu-Poisson
Jurčo, Branislav +2 more
openaire +3 more sources
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Geometrical aspects of local gauge symmetry [PDF]
, 2004 This paper is an analysis of the geometrical interpretation of local gauge symmetry for theories of the Yang-Mills ...
Guay, Alexandre +1 more
core
Gauge Theory and Nematic Order – Data from the PhD dissertation
, 2016 Monte Carlo data of the phase diagrams in the thesis "Gauge Theory and Nematic ...
Liu, K. (Ke)
core +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Are gauge symmetry transformations observable? [PDF]
, 2003 In a recent paper in the British Journal for the Philosophy of Science, Kosso discussed the observational status of continuous symmetries of physics. While we are in broad agreement with his approach, we disagree with his analysis.
Brading, Katherine +3 more
core
Topological Quantum Field Theory and the Geometric Langlands Correspondence [PDF]
, 2013 In the pioneering work of A. Kapustin and E. Witten, the geometric Langlands program of number theory was shown to be intimately related to duality of GL-twisted N=4 super Yang-Mills theory compactified on a Riemann surface. In this thesis, we generalize
Setter, Kevin Luke
core +1 more source
Journal of High Energy PhysicsWe report a novel BPS jumping phenomenon of 5d N $$ \mathcal{N} $$ = 1 supersymmetric gauge theories whose brane configuration is equipped with an O7-plane.
Sung-Soo Kim +3 more
doaj +1 more source
Iterative calculus on tangent floors
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016 Tangent fibrations generate a “multi-floored tower”, while raising from one of its floors to the next one, one practically reiterates the previously performed actions. In this way, the "tower" admits a ladder-shaped structure. Raising to the first floors
Balan Vladimir +2 more
doaj +1 more source