Results 21 to 30 of about 64,056 (293)

Divalent metal ion differentially regulates the sequential nicking reactions of the GIY-YIG homing endonuclease I-BmoI. [PDF]

open access: yesPLoS ONE, 2011
Homing endonucleases are site-specific DNA endonucleases that function as mobile genetic elements by introducing double-strand breaks or nicks at defined locations.
Benjamin P Kleinstiver   +3 more
doaj   +1 more source

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

Selfish DNA: Homing Endonucleases Find a Home [PDF]

open access: yes, 2009
SummarySelf-splicing group I introns come in two flavours — those with a homing endonuclease to promote mobility of the intron, and those without an endonuclease.
Edgell, David R.
core   +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

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

Molecular cloning and physical mapping of murine cytomegalovirus DNA [PDF]

open access: yes, 1983
Murine cytomegalovirus (MCMV) Smith strain DNA is cleaved by restriction endonuclease HindIII into 16 fragments, ranging in size from 0.64 to 22.25 megadaltons.
Ebeling, Angelika   +3 more
core   +1 more source

Endonuclease activity in lipocalins [PDF]

open access: yesBiochemical Journal, 2000
Several lipocalins contain conserved amino acid sequences similar to the phosphodiester bond cleavage domain of sugar non-specific magnesium-dependent nucleases of the Serratia marcescens type. His-89 and Glu-127 of the S. marcescens endonuclease are believed to have a role in the active catalytic site by the attack of a water molecule at the ...
T N, Yusifov   +3 more
openaire   +2 more sources

Restriction endonucleases from Bifidobacterium bifidum [PDF]

open access: yes, 1984
Three restriction endonucleases, BbiI, BbiII and BbiIII, have been isolated from Bifidobacterium bifidum. The recognition and cleavage specificity of BbiII was determined to be 5'-GR↓CGYC-3', identical to that of AcyI isolated from a cyanobacterium ...
Kiwaki, Mayumi   +3 more
core   +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

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