Results 1 to 10 of about 106 (103)

On the Stability of Barrelled Topologies II [PDF]

open access: yesGlasgow Mathematical Journal, 1980
If E is a Hausdorff barrelled space, which does not already have its finest locally convex topology, then the continuous dual E′ may be enlarged within the algebraic dual E*. Robertson and Yeomans [10] have recently investigated whether E can retain the barrelled property under such enlargements.
Tweddle, I., Yeomans, F. E.
openaire   +1 more source

On the stability of barrelled topologies, I [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1979
This note investigates, for locally convex topological vector spaces, the question of how far the property of being barrelled is stable under small increase in the size of the dual space. If the dual F of a barrelled space E is enlarged by a finite dimensional vector space M, then E remains barrelled under the new Mackey topology τ(E, F+M).
Robertson, W. J., Yeomans, F. E.
openaire   +1 more source

On the stability of barrelled topologies, III [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1980
Let E be a barrelled space with dual F ≠ E*. It is shown that F has uncountable codimension in E*. If M is a vector subspace of E* of countable dimension with M ∩ F = {o}, the topology τ(E, F+M) is called a countable enlargement of τ(E, F). The results of the two previous papers are extended: it is proved that a non-barrelled countable enlargement ...
Robertson, W. J.   +2 more
openaire   +1 more source

β-Barrel Topology of Alzheimer's β-Amyloid Ion Channels [PDF]

open access: yesJournal of Molecular Biology, 2010
Emerging evidence supports the ion channel mechanism for Alzheimer's disease pathophysiology wherein small β-amyloid (Aβ) oligomers insert into the cell membrane, forming toxic ion channels and destabilizing the cellular ionic homeostasis. Solid-state NMR-based data of amyloid oligomers in solution indicate that they consist of a double-layered β ...
Jang, Hyunbum   +5 more
openaire   +5 more sources

Cascading classifier application for topology prediction of transmembrane beta-barrel proteins [PDF]

open access: yesJournal of Bioinformatics and Computational Biology, 2020
Membrane proteins are a major focus for new drug discovery. Transmembrane beta-barrel (TMB) proteins play key roles in the translocation machinery, pore formation, membrane anchoring and ion exchange. Given their key roles and the difficulty in membrane protein structure determination, the use of computational modeling is essential. This paper focuses
Hassan B. Kazemian   +1 more
openaire   +4 more sources

BOCTOPUS: improved topology prediction of transmembrane β barrel proteins [PDF]

open access: yesBioinformatics, 2012
Abstract Motivation: Transmembrane β barrel proteins (TMBs) are found in the outer membrane of Gram-negative bacteria, chloroplast and mitochondria. They play a major role in the translocation machinery, pore formation, membrane anchoring and ion exchange. TMBs are also promising targets for antimicrobial drugs and vaccines.
Sikander Hayat, Arne Elofsson
openaire   +3 more sources

Denaturation of proteins with beta-barrel topology induced by guanidine hydrochloride [PDF]

open access: yesSpectroscopy, 2010
The stability of the representatives of two protein classes withβ-barrel topology: porcine odorant-binding protein (OBP) and a number of fluorescent proteins (FPs), was studied. It was shown that both of them are significantly more stable than globular α-helical andα/βproteins.
Stepanenko OV   +5 more
openaire   +3 more sources

Topological precision in the thalamic projection to neonatal mouse barrel cortex [PDF]

open access: yesThe Journal of Neuroscience, 1995
Somatosensory thalamus and cortex in rodents contain topological representations of the facial whisker pad. The thalamic representation of a single whisker (“barreloid”) is presumed to project exclusively to the cortical representation (“barrel”) of the same whisker; however, it was not known when this correspondence is established during early ...
Agmon, Ariel   +3 more
openaire   +5 more sources

On barrelled topological modules [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
Some of the main theorems concerning ultrabarrelled topological vector spaces are extended to the context of topological modules.
openaire   +3 more sources

Examining the Flexibility of Tim Barrel Proteins Based on their Structural Topology [PDF]

open access: yesBiophysical Journal, 2013
The eight-fold beta/alpha barrel-like fold, first seen in triose-phosphate isomerase (TIM), is a common and versatile fold for proteins. Proteins in this classification have diverse enzymatic functions spanning five of six Enzyme Commission classes.
Tiwari, Sandhya, Reuter, Nathalie
openaire   +1 more source

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