Results 21 to 30 of about 60,825 (304)

Enzymatic cleavage of type II restriction endonucleases on the 2'-O-methyl nucleotide and phosphorothioate substituted DNA. [PDF]

open access: yesPLoS ONE, 2013
The effects of nucleotide analogue substitution on the cleavage efficiencies of type II restriction endonucleases have been investigated. Six restriction endonucleases (EcoRV, SpeI, XbaI, XhoI, PstI and SphI) were investigated respectively regarding ...
Guojie Zhao   +5 more
doaj   +1 more source

New Insights Into DNA Repair Revealed by NucS Endonucleases From Hyperthermophilic Archaea

open access: yesFrontiers in Microbiology, 2020
Hyperthermophilic Archaea (HA) thrive in high temperature environments and their genome is facing severe stability challenge due to the increased DNA damage levels caused by high temperature.
Likui Zhang   +5 more
doaj   +1 more source

Viral Nucleases

open access: yesViruses, 2023
Nucleases are ubiquitous hydrolytic enzymes that cleave phosphodiester bond of DNA (DNases), RNA (RNases), or protein-RNA/DNA (phosphodiesterases), within the strand (endonucleases) or from the end (exonucleases) [...]
Zhengqiang Wang, Robert J. Geraghty
doaj   +1 more source

Flap Endonuclease 1 [PDF]

open access: yesAnnual Review of Biochemistry, 2013
First discovered as a structure-specific endonuclease that evolved to cut at the base of single-stranded flaps, flap endonuclease (FEN1) is now recognized as a central component of cellular DNA metabolism. Substrate specificity allows FEN1 to process intermediates of Okazaki fragment maturation, long-patch base excision repair, telomere maintenance ...
Lata, Balakrishnan, Robert A, Bambara
openaire   +2 more sources

Mobile DNA elements in T4 and related phages

open access: yesVirology Journal, 2010
Mobile genetic elements are common inhabitants of virtually every genome where they can exert profound influences on genome structure and function in addition to promoting their own spread within and between genomes.
Belfort Marlene   +2 more
doaj   +1 more source

Engineering Infrequent DNA Nicking Endonuclease by Fusion of a BamHI Cleavage-Deficient Mutant and a DNA Nicking Domain

open access: yesFrontiers in Microbiology, 2022
Strand-specific DNA nicking endonucleases (NEases) typically nick 3–7 bp sites. Our goal is to engineer infrequent NEase with a >8 bp recognition sequence.
Shuang-yong Xu
doaj   +1 more source

CiAPEX2 and CiP0, candidates of AP endonucleases in Ciona intestinalis, have 3′-5′ exonuclease activity and contribute to protection against oxidative stress

open access: yesGenes and Environment, 2017
Apurinic/apyrimidinic (AP) sites are one of the most frequent DNA lesions. AP sites inhibit transcription and DNA replication, and induce cell death. AP endonucleases are key enzymes in AP site repair. Several types of AP endonucleases have been reported,
Masafumi Funakoshi   +3 more
doaj   +1 more source

Sequence-specific DNA nicking endonucleases

open access: yesBiomolecular Concepts, 2015
A group of small HNH nicking endonucleases (NEases) was discovered recently from phage or prophage genomes that nick double-stranded DNA sites ranging from 3 to 5 bp in the presence of Mg2+ or Mn2+.
Xu Shuang-yong
doaj   +1 more source

Structure-Specific Endonucleases in DNA Repair

open access: yesCHIMIA, 2009
Nucleotide excision repair (NER) is an essential DNA repair pathway that addresses a variety of DNA lesions formed by UV light, environmental mutagens and agents used in cancer chemotherapy.
Orlando D. Schärer
doaj   +1 more source

F-CphI represents a new homing endonuclease family using the Endo VII catalytic motif

open access: yesMobile DNA, 2018
Background There are six known families of homing endonucleases, LAGLIDADG, GIY-YIG, HNH, His-Cys box, PD-(D/E)-XK, and EDxHD, which are characterized by their conserved residues.
Xiaoting Fang   +3 more
doaj   +1 more source

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