Results 61 to 70 of about 65,968 (266)

The Reaction of Formaldehyde with Polynucleotides

open access: yesJournal of Biological Chemistry, 1961
Formaldehyde has been used extensively for chemically modifying proteins and for inactivating toxins and viruses, although the precise mode of its action is little understood. In the case of tobacco mosaic virus, however, Fraenkel-Conrat (1) and Staehelin (2) have shown that inactivation of the virus is due to interaction of formaldehyde with the amino
Robert Haselkorn, Paul Doty
openaire   +3 more sources

Membrane selectivity and pore formation of SprA1 and SprA2 hemolytic peptides from Staphylococcus aureus type I toxin–antitoxin systems

open access: yesThe FEBS Journal, EarlyView.
When overexpressed in Staphylococcus aureus, the type I toxins SprA1 and SprA2 form membrane pores, with SprA1 creating stable pores and SprA2 forming transient ones. Both induce concomitant membrane depolarization, ATP release, and growth arrest, while only SprA1 causes membrane permeabilization due to its stable pore formation.
Laurence Fermon   +10 more
wiley   +1 more source

Human FASTK preferentially binds single‐stranded and G‐rich RNA

open access: yesThe FEBS Journal, EarlyView.
Although FASTK is known to play a role in mRNA biology, the mechanism through which it recognizes RNA has yet to be unraveled. Here, we used purified human FASTK to characterize its RNA‐binding properties in vitro. We found that FASTK prefers ssRNA oligonucleotides containing guanines with the potential to form G‐quadruplexes and binds robustly to any ...
Daria M. Dawidziak   +7 more
wiley   +1 more source

Polynucleotide phosphorylase has an impact on cell biology of Campylobacter jejuni

open access: yesFrontiers in Cellular and Infection Microbiology, 2012
Polynucleotide phosphorylase, encoded by the pnp gene, is known to degrade mRNA, mediating post-transcriptional regulation and may affect cellular functions. The role of PNPase is pleiotropic.
Nabila eHaddad   +12 more
doaj   +1 more source

Blood group O expression in normal tissues and tumors

open access: yesThe FEBS Journal, EarlyView.
The H antigen (O blood group), the precursor to A and B blood groups, is expressed on human erythrocytes. Two novel monoclonal antibodies generated using sea lamprey immunization, Tn4‐31L and OmcFL3‐02, specifically detect the H antigen on glycan microarrays, glycoproteins, and human cells.
Ea Kristine Clarisse Tulin   +11 more
wiley   +1 more source

Derivatization of unprotected polynucleotides

open access: yesNucleic Acids Research, 1983
A simple and efficient method for attaching amines to the terminal 5'-phosphate of unprotected oligonucleotides or nucleic acids in aqueous solution is described. The method is applicable to low molecular-weight amines, polypeptides, or proteins. The terminal 5'-phosphate of an oligonucleotide or nucleic acid reacts with a water-soluble carbodiimide in
Barbara C.F. Chu   +2 more
openaire   +4 more sources

The bZIP3‐AS1 complex promotes CONSTANS‐induced FLOWERING LOCUS T activation in a daylength‐dependent manner

open access: yesJournal of Integrative Plant Biology, EarlyView.
The Arabidopsis bZIP3 protein works in conjunction with ASYMMETRIC LEAVES1 to facilitate the function of the CONSTANS protein in activating FLOWERING LOCUS T expression at the end of the day in a day length‐dependent manner. ABSTRACT Plants monitor daylength to synchronize their flowering time with their surroundings and thus maximize reproductive ...
Wonbok Lee   +10 more
wiley   +1 more source

A Chromosome Inversion Creates a Supergene for Sex and Colour in Lake Malawi Cichlids

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Cichlid fishes have the highest rates of evolutionary turnover of sex chromosomes among vertebrates. Many large structural polymorphisms in the radiation of cichlids in Lake Malawi are associated with sex chromosomes and may also carry adaptive variation.
Kristen A. Behrens   +10 more
wiley   +1 more source

A nanometric DNA-zwitterionic phospholipid unilamellar vesicle formulation compacted for gene delivery: Adiabatic differential scanning microcalorimetric study [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 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 S u˙˙leymano(glu
doaj  

Role of polynucleotide kinase/phosphatase in mitochondrial DNA repair

open access: yesNucleic Acids Research, 2011
Mutations in mitochondrial DNA (mtDNA) are implicated in a broad range of human diseases and in aging. Compared to nuclear DNA, mtDNA is more highly exposed to oxidative damage due to its proximity to the respiratory chain and the lack of protection ...
Nasser Tahbaz, Sudip Subedi, M. Weinfeld
semanticscholar   +1 more source

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