Results 21 to 30 of about 1,032,448 (308)

Plant DNA polymerases [PDF]

open access: yes, 2019
Maintenance of genome integrity is a key process in all organisms. DNA polymerases (Pols) are central players in this process as they are in charge of the faithful reproduction of the genetic information, as well as of DNA repair.
De Veylder, Lieven   +2 more
core   +3 more sources

Reconstitution of a eukaryotic replisome reveals suppression mechanisms that define leading/lagging strand operation

open access: yeseLife, 2015
We have reconstituted a eukaryotic leading/lagging strand replisome comprising 31 distinct polypeptides. This study identifies a process unprecedented in bacterial replisomes.
Roxana E Georgescu   +7 more
doaj   +1 more source

Dna2 Helicase/Nuclease Causes Replicative Fork Stalling and Double-strand Breaks in the Ribosomal DNA of Saccharomyces cerevisiae [PDF]

open access: yes, 2003
We have proposed that faulty processing of arrested replication forks leads to increases in recombination and chromosome instability in Saccharomyces cerevisiae and contributes to the shortened lifespan of dna2 mutants. Now we use the ribosomal DNA locus,
Budd, Martin   +3 more
core   +2 more sources

Molecular choreography of primer synthesis by the eukaryotic Pol α-primase

open access: yesNature Communications, 2023
The eukaryotic polymerase α (Pol α) synthesizes an RNA-DNA hybrid primer of 20–30 nucleotides. Pol α is composed of Pol1, Pol12, Primase 1 (Pri1), and Pri2. Pol1 and Pri1 contain the DNA polymerase and RNA primase activities, respectively.
Zuanning Yuan   +3 more
doaj   +1 more source

The dynamics of replication licensing in live Caenorhabditis elegans embryos [PDF]

open access: yes, 2012
Accurate DNA replication requires proper regulation of replication licensing, which entails loading MCM-2-7 onto replication origins. In this paper, we provide the first comprehensive view of replication licensing in vivo, using video microscopy of ...
Anton Gartner   +56 more
core   +4 more sources

Robust Replication Control Is Generated by Temporal Gaps between Licensing and Firing Phases and Depends on Degradation of Firing Factor Sld2

open access: yesCell Reports, 2016
Temporal separation of DNA replication initiation into licensing and firing phases ensures the precise duplication of the genome during each cell cycle.
Karl-Uwe Reusswig   +3 more
doaj   +1 more source

Implementing fluorescence enhancement, quenching, and FRET for investigating flap endonuclease 1 enzymatic reaction at the single-molecule level

open access: yesComputational and Structural Biotechnology Journal, 2021
Flap endonuclease 1 (FEN1) is an important component of the intricate molecular machinery for DNA replication and repair. FEN1 is a structure-specific 5′ nuclease that cleaves nascent single-stranded 5′ flaps during the maturation of Okazaki fragments ...
Mohamed A. Sobhy   +5 more
doaj   +1 more source

Reversal of terminal differentiation and control of DNA replication [PDF]

open access: yes, 1993
DNA replication in mammalian cells occurs in discrete nuclear foci. Here we show that terminally differentiated myotubes can be induced to reenter S phase and show the same pattern of replication foci as cycling cells.
Cardoso, M. Cristina   +2 more
core   +1 more source

Fork rotation and DNA precatenation are restricted during DNA replication to prevent chromosomal instability [PDF]

open access: yes, 2015
Faithful genome duplication and inheritance require the complete resolution of all intertwines within the parental DNA duplex. This is achieved by topoisomerase action ahead of the replication fork or by fork rotation and subsequent resolution of the DNA
Anna L. Chambers   +5 more
core   +3 more sources

Proteomic data on the nuclear interactome of human MCM9

open access: yesData in Brief, 2016
We present data relating to the interactome of MCM9 from the nuclei of human cells. MCM9 belongs to the AAA+ superfamily, and contains an MCM domain and motifs that may confer DNA helicase activity.
James R.A. Hutchins   +6 more
doaj   +1 more source

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