Results 71 to 80 of about 1,012,378 (302)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights

open access: yesActa Scientiarum: Animal Sciences, 2019
Carcass and meat characteristics of 48 Nellore heifers at 24 to 30 months of age, with an initial weight of 263.4 ± 13.9 kg, were evaluated. The experiment was set up as a completely randomized design with four treatments, which consisted of four ...
Pedro Leonardo de Paula Rezende   +5 more
doaj   +1 more source

Conformal Covariantes

open access: yesPublications of the Research Institute for Mathematical Sciences, 1986
(From the author's introduction) ''By a conformal covariant we mean a holomorphic differential operator which intertwines two holomorphic representations of the conformal group SU(2,2). In this article we determine all such. [...] The determination of the set of covariant differential operators is equivalent to the determination of the set of ...
openaire   +2 more sources

Conformal Automorphisms and Conformally Flat Manifolds [PDF]

open access: yesTransactions of the American Mathematical Society, 1991
A geometric structure on a smooth n n -manifold M M is a maximal collection of distinguished charts modeled on a 1 1 -connected n n -dimensional homogeneous space X X of a Lie group G G where coordinate changes are restrictions of transformations ...
Goldman, William M.   +1 more
openaire   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

p97 Disease Mutations Modulate Nucleotide-Induced Conformation to Alter Protein-Protein Interactions. [PDF]

open access: yes, 2016
The AAA+ ATPase p97/VCP adopts at least three conformations that depend on the binding of ADP and ATP and alter the orientation of the N-terminal protein-protein interaction (PPI) domain into up and down conformations.
Arkin, Michelle   +2 more
core  

Designability of lattice model heteropolymers

open access: yes, 2001
Protein folds are highly designable, in the sense that many sequences fold to the same conformation. In the present work we derive an expression for the designability in a 20 letter lattice model of proteins which, relying only on the Central Limit ...
A. Sali   +28 more
core   +1 more source

6d Conformal matter [PDF]

open access: yesJournal of High Energy Physics, 2015
A single M5-brane probing G, an ADE-type singularity, leads to a system which has G x G global symmetry and can be viewed as "bifundamental" (G,G) matter. For the A_N series, this leads to the usual notion of bifundamental matter. For the other cases it corresponds to a strongly interacting (1,0) superconformal system in six dimensions.
Del Zotto, M   +3 more
openaire   +7 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

The C–F bond as a conformational tool in organic and biological chemistry

open access: yesBeilstein Journal of Organic Chemistry, 2010
Organofluorine compounds are widely used in many different applications, ranging from pharmaceuticals and agrochemicals to advanced materials and polymers.
Luke Hunter
doaj   +1 more source

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