Results 61 to 70 of about 227,260 (265)

Site-specific DNA transesterification catalyzed by a restriction enzyme [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
Most restriction endonucleases use Mg 2+ to hydrolyze phosphodiester bonds at specific DNA sites. We show here that BfiI, a metal-independent restriction enzyme from the phospholipase D superfamily, catalyzes both DNA hydrolysis and transesterification reactions at its recognition site.
Sasnauskas, G   +3 more
openaire   +3 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Genetic Analysis Using Partial Sequencing of Melanocortin 4 Receptor (MC4R) Gene in Bligon Goat

open access: yesMedia Peternakan, 2017
Melanocortin 4 Receptor gene is involved in sympathetic nerve activity, adrenal and thyroid functions, and media for leptin in regulating energy balance and homeostasis. The aim of this research was to perform genetic analysis of MC4R gene sequences from
Latifah Latifah   +4 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Restriction enzymes use a 24 dimensional coding space to recognize 6 base long DNA sequences.

open access: yesPLoS ONE, 2019
Restriction enzymes recognize and bind to specific sequences on invading bacteriophage DNA. Like a key in a lock, these proteins require many contacts to specify the correct DNA sequence.
Thomas D Schneider, Vishnu Jejjala
doaj   +1 more source

The Epigenomic Landscape of Prokaryotes. [PDF]

open access: yesPLoS Genetics, 2016
DNA methylation acts in concert with restriction enzymes to protect the integrity of prokaryotic genomes. Studies in a limited number of organisms suggest that methylation also contributes to prokaryotic genome regulation, but the prevalence and ...
Matthew J Blow   +18 more
doaj   +1 more source

Inhibition of restriction enzyme's DNA sequence recognition by PUVA treatment [PDF]

open access: yesNucleic Acids Symposium Series, 2001
Applying various restriction enzymes on a specially designed 1.5 kb DNA fragment revealed that the inhibitory effects of PUVA treatment on restriction endonuclease activities are caused by recognition inhibition. In this study, Restriction enzymes which have a 5'-TpA sequence at the cleaving site (Kpn I, Xba I, Pme I, and Dra I), and non-cleaving site (
Hanawa, F., Okamoto, M., Towers, G.
openaire   +4 more sources

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Restriction modification systems in archaea: A panoramic outlook

open access: yesHeliyon
Restriction modification (RM) systems are one of the ubiquitous yet primitive defense responses employed by bacteria and archaea with the primary role of safeguarding themselves against invading bacteriophages.
Pallavi Gulati   +4 more
doaj   +1 more source

Restriction and modification of deoxyarchaeosine (dG+)-containing phage 9 g DNA

open access: yesScientific Reports, 2017
E. coli phage 9 g contains the modified base deoxyarchaeosine (dG+) in its genome. The phage encodes its own primase, DNA ligase, DNA polymerase, and enzymes necessary to synthesize and incorporate dG+.
Rebecca Tsai   +3 more
doaj   +1 more source

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