Results 1 to 10 of about 6,691,628 (330)

Structural constraints and dynamics of bacterial cell wall architecture [PDF]

open access: yesFrontiers in Microbiology, 2015
The peptidoglycan wall (PG) is a unique structure which confers physical strength and defined shape to bacteria. It consists of a net-like macromolecule of peptide interlinked glycan chains overlying the cell membrane.
Miguel Angel De Pedro, Felipe eCava
doaj   +3 more sources

Immediate sensitivity to structural constraints in pronoun resolution [PDF]

open access: yesFrontiers in Psychology, 2014
Real-time interpretation of pronouns is sometimes sensitive to the presence of grammatically-illicit antecedents, and sometimes not. This occasional sensitivity has been taken as evidence that structural constraints do not immediately impact the initial ...
Wing Yee eChow   +5 more
doaj   +3 more sources

Structural Constraints Determine the Glycosylation of HIV-1 Envelope Trimers [PDF]

open access: yesCell Reports, 2015
A highly glycosylated, trimeric envelope glycoprotein (Env) mediates HIV-1 cell entry. The high density and heterogeneity of the glycans shield Env from recognition by the immune system, but paradoxically, many potent broadly neutralizing antibodies ...
Laura K. Pritchard   +13 more
doaj   +3 more sources

Improving object detection quality with structural constraints. [PDF]

open access: yesPLoS ONE, 2022
Recent researches revealed object detection networks using the simple "classification loss + localization loss" training objective are not effectively optimized in many cases, while providing additional constraints on network features could effectively ...
Zihao Rong   +3 more
doaj   +2 more sources

Deep learning extends de novo protein modelling coverage of genomes using iteratively predicted structural constraints. [PDF]

open access: yesNat Commun, 2019
The inapplicability of amino acid covariation methods to small protein families has limited their use for structural annotation of whole genomes. Recently, deep learning has shown promise in allowing accurate residue-residue contact prediction even for ...
Greener JG, Kandathil SM, Jones DT.
europepmc   +3 more sources

The potential for structural errors in emergent constraints [PDF]

open access: yesEarth System Dynamics, 2021
Studies of emergent constraints have frequently proposed that a single metric can constrain future responses of the Earth system to anthropogenic emissions.
B. M. Sanderson   +9 more
doaj   +2 more sources

Subtype-specific structural constraints in the evolution of influenza A virus hemagglutinin genes. [PDF]

open access: yesSci Rep, 2016
The influenza A virus genome consists of eight RNA segments. RNA structures within these segments and complementary (cRNA) and protein-coding mRNAs may play a role in virus replication.
Gultyaev AP   +5 more
europepmc   +2 more sources

Structural Constraints on Human Norovirus Binding to Histo-Blood Group Antigens. [PDF]

open access: yesmSphere, 2016
Human norovirus interacts with the polymorphic human histo-blood group antigens (HBGAs), and this interaction is thought to be important for infection. The genogroup II genotype 4 (GII.4) noroviruses are the dominant cluster, evolve every other year, and
Singh BK, Leuthold MM, Hansman GS.
europepmc   +2 more sources

Parallel computation of genome-scale RNA secondary structure to detect structural constraints on human genome. [PDF]

open access: yesBMC Bioinformatics, 2016
RNA secondary structure around splice sites is known to assist normal splicing by promoting spliceosome recognition. However, analyzing the structural properties of entire intronic regions or pre-mRNA sequences has been difficult hitherto, owing to ...
Kawaguchi R, Kiryu H.
europepmc   +2 more sources

Reconstruction of ancestral RNA sequences under multiple structural constraints [PDF]

open access: yesBMC Genomics, 2016
Background Secondary structures form the scaffold of multiple sequence alignment of non-coding RNA (ncRNA) families. An accurate reconstruction of ancestral ncRNAs must use this structural signal.
Olivier Tremblay-Savard   +2 more
doaj   +2 more sources

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