Results 81 to 90 of about 79,106 (244)

Decoding pH‐Driven Phase Transition of Lipid Nanoparticles

open access: yesSmall, EarlyView.
Ionizable aminolipids govern lipid nanoparticle (LNP) function through environment‐dependent protonation. Constant‐pH molecular dynamics reveal intrinsic, apparent, and surface pKa${\rm pK}_{\text{a}}$ values within LNP‐mimetic membranes, demonstrating that the LNP lipid environment induces a pronounced downward pKa${\rm pK}_{\text{a}}$ shift exceeding
Marius F.W. Trollmann   +1 more
wiley   +1 more source

Defects in Polynucleotide phosphorylase impairs virulence in Escherichia coli O157:H7

open access: yesFrontiers in Microbiology, 2015
Polynucleotide phosphorylase (PNPase) is reported to regulate virulence in Salmonella, Yersinia spp. and Campylobacter jejuni, yet its role in Escherichia coli O157:H7 has not been investigated. To gain insights into its roles in E.
Jia eHu, Jia eHu, Meijun eZhu
doaj   +1 more source

Nanostructured luminescently labeled nucleic acids [PDF]

open access: yes, 2017
Important and emerging trends at the interface of luminescence, nucleic acids and nanotechnology are: (i) the conventional luminescence labeling of nucleic acid nanostructures (e.g. DNA tetrahedron); (ii) the labeling of bulk nucleic acids (e.g. single‐
Adleman   +105 more
core   +1 more source

Beyond nocardioform: Transcriptionally active microbes and host responses in equine mucoid placentitis

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Nocardioform placentitis (NP) is an understudied form of equine placentitis historically attributed to nocardioform bacteria, yet it remains uncertain whether these organisms are the sole pathogens involved. Objectives To elucidate the pathophysiology of NP and the host–pathogen interaction. Study Design In vivo clinical multi‐omics
Machteld van Heule   +10 more
wiley   +1 more source

Kinetics of the template-directed oligomerization of guanosine 5'-phosphate-2-methylimidazolide: Effect of temperature on individual steps of reactionion [PDF]

open access: yes
Non-enzymatic, template-directed reactions have been proposed as models for prebiological polynucleotide synthesis. Chemically activated mononucleotides react in the presence of a polynucleotide, acting as the template in a Watson-Crick base-pairing ...
Alberas, D. J.   +2 more
core   +1 more source

Role of the particle's stepping cycle in an asymmetric exclusion process: A model of mRNA translation [PDF]

open access: yes, 2010
Messenger RNA translation is often studied by means of statistical-mechanical models based on the Asymmetric Simple Exclusion Process (ASEP), which considers hopping particles (the ribosomes) on a lattice (the polynucleotide chain).
Ciandrini, L.   +2 more
core   +3 more sources

Redox environment modulates aggregation of ataxin‐3 in vitro — Implications for drug screening of cysteine‐rich proteins

open access: yesThe FEBS Journal, EarlyView.
Redox environment modulates in vitro aggregation of Ataxin‐3, the protein implicated in spinocerebellar ataxia type 3. Reducing conditions stabilize native monomers and prevent aggregation, whereas oxidative conditions promote the formation of non‐native conformers and disulfide‐linked oligomers within the Josephin domain (JD).
Martyna Podlasiak   +10 more
wiley   +1 more source

Adiabatic differential scanning calorimetric study of divalent cation induced DNA - DPPC liposome formulation compacted for gene delivery

open access: yesBrazilian Archives of Biology and Technology, 2004
Complexes between nucleic acids and phospholipid vesicles have been developed as stable non-viral gene delivery vehicles. Currently employed approach uses positively charged lipid species and a helper zwitterionic lipid, the latter being applied for the ...
Erhan Süleymanoglu
doaj   +1 more source

Linker region is required for efficient nuclear localization of polynucleotide kinase phosphatase.

open access: yesPLoS ONE, 2020
Polynucleotide kinase phosphatase (PNKP) is a DNA repair factor with dual enzymatic functions, i.e., phosphorylation of 5'-end and dephosphorylation of 3'-end, which are prerequisites for DNA ligation and, thus, is involved in multiple DNA repair ...
Kaima Tsukada   +2 more
doaj   +1 more source

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