Results 51 to 60 of about 725,272 (355)

Structure of an archaeal PCNA1-PCNA2-FEN1 complex: elucidating PCNA subunit and client enzyme specificity. [PDF]

open access: yes, 2006
The archaeal/eukaryotic proliferating cell nuclear antigen (PCNA) toroidal clamp interacts with a host of DNA modifying enzymes, providing a stable anchorage and enhancing their respective processivities.
Andrew S. Doré   +48 more
core   +4 more sources

A self-replicating peptide nucleic acid [PDF]

open access: yesOrg. Biomol. Chem., 2014
This paper presents evidence for self-replication in a most basic PNA molecular network and provides an explanation for the underlying kinetics.
Plöger, Tobias A.   +1 more
openaire   +3 more sources

Polyanionic Carboxyethyl Peptide Nucleic Acids (ce-PNAs): Synthesis and DNA Binding. [PDF]

open access: yesPLoS ONE, 2015
New polyanionic modifications of polyamide nucleic acid mimics were obtained. Thymine decamers were synthesized from respective chiral α- and γ-monomers, and their enantiomeric purity was assessed. Here, we present the decamer synthesis, purification and
Yuliya Kirillova   +9 more
doaj   +1 more source

Atomic mutagenesis of stop codon nucleotides reveals the chemical prerequisites for release factor-mediated peptide release. [PDF]

open access: yes, 2018
Termination of protein synthesis is triggered by the recognition of a stop codon at the ribosomal A site and is mediated by class I release factors (RFs).
Clementi, Nina   +11 more
core   +3 more sources

Peptides before and during the nucleotide world: an origins story emphasizing cooperation between proteins and nucleic acids

open access: yesJournal of the Royal Society Interface, 2022
Recent developments in Origins of Life research have focused on substantiating the narrative of an abiotic emergence of nucleic acids from organic molecules of low molecular weight, a paradigm that typically sidelines the roles of peptides. Nevertheless,
S. Fried   +4 more
semanticscholar   +1 more source

Features of “All LNA” Duplexes Showing a New Type of Nucleic Acid Geometry

open access: yesJournal of Nucleic Acids, 2012
“Locked nucleic acids” (LNAs) belong to the backbone-modified nucleic acid family. The 2′-O,4′-C-methylene-β-D-ribofuranose nucleotides are used for single or multiple substitutions in RNA molecules and thereby introduce enhanced bio- and thermostability.
Charlotte Förster   +6 more
doaj   +1 more source

Specific recognition of a multiply phosphorylated motif in the DNA repair scaffold XRCC1 by the FHA domain of human PNK. [PDF]

open access: yes, 2009
Short-patch repair of DNA single-strand breaks and gaps (SSB) is coordinated by XRCC1, a scaffold protein that recruits the DNA polymerase and DNA ligase required for filling and sealing the damaged strand.
Ali, Ammar A. E.   +3 more
core   +3 more sources

Peptide nucleic acids in materials science [PDF]

open access: yesArtificial DNA: PNA & XNA, 2012
This review highlights the recent methods to prepare PNA-based materials through a combination of self-assembly and self-organization processes. The use of these methods allows easy and versatile preparation of structured hybrid materials showing specific recognition properties and unique physicochemical properties at the nano- and micro-scale levels ...
D. Bonifazi   +3 more
openaire   +3 more sources

N-terminal proteomics assisted profiling of the unexplored translation initiation landscape in Arabidopsis thaliana [PDF]

open access: yes, 2017
Proteogenomics is an emerging research field yet lacking a uniform method of analysis. Proteogenomic studies in which N-terminal proteomics and ribosome profiling are combined, suggest that a high number of protein start sites are currently missing in ...
Gevaert, Kris   +8 more
core   +1 more source

Conformational dynamics of the Hop1 HORMA domain reveal a common mechanism with the spindle checkpoint protein Mad2. [PDF]

open access: yes, 2017
The HORMA domain is a highly conserved protein-protein interaction module found in eukaryotic signaling proteins including the spindle assembly checkpoint protein Mad2 and the meiotic HORMAD proteins.
Corbett, Kevin D   +2 more
core   +2 more sources

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