Results 61 to 70 of about 982,599 (302)

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

FEBS 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, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Characterizing DNA condensation and conformational changes in organic solvents. [PDF]

PLoS ONE, 2010
Organic solvents offer a new approach to formulate DNA into novel structures suitable for gene delivery. In this study, we examined the in situ behavior of DNA in N, N-dimethylformamide (DMF) at low concentration via laser light scattering (LLS), TEM, UV
Fuyou Ke, Yen Kim Luu, Michael Hadjiargyrou, Dehai Liang   +3 more
doaj   +1 more source

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

FEBS 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, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Correlation of Antibiotic Resistance and Restriction Mapping of Plasmid DNA Isolated from E. coli Causing Urinary Tract Infection

Journal of Pure and Applied Microbiology, 2019
Pathogenic bacteria are constantly adapted against antimicrobial drugs by arising new traits of drug resistance. The genes of such resistance are mostly possessed by pathogens due to the random use of antibiotics and commonly held on plasmid DNA ...
Mohammed Jasim Al-Shamart, Muslim Idan Mohsin   +1 more
doaj   +1 more source

Influence of DNA characteristics on cell membrane damage stimulated by electrical short-circuiting via a low-conductive aqueous droplet in dielectric oil.

PLoS ONE, 2023
We investigated gene electrotransfer using electrical short-circuiting via a cell suspension droplet in dielectric oil. An aqueous droplet of a few microliters placed between a pair of electrodes can be deformed by an intense DC electric field depending ...
Yoshino Tsurusaki, Yuki Watanabe, Rika Numano, Takayuki Shibata, Hirofumi Kurita   +4 more
doaj   +1 more source

Native Plasmid-Encoded Mercury Resistance Genes Are Functional and Demonstrate Natural Transformation in Environmental Bacterial Isolates. [PDF]

, 2019
Plasmid-mediated horizontal gene transfer (HGT) is a major driver of genetic diversity in bacteria. We experimentally validated the function of a putative mercury resistance operon present on an abundant 8-kbp native plasmid found in groundwater samples ...
Carlson, Hans K, Deutschbauer, Adam M, Kothari, Ankita, Mukhopadhyay, Aindrila, Soneja, Drishti, Tang, Albert   +5 more
core   +1 more source

Potent CRISPR-Cas9 inhibitors from Staphylococcus genomes. [PDF]

, 2020
Anti-CRISPRs (Acrs) are small proteins that inhibit the RNA-guided DNA targeting activity of CRISPR-Cas enzymes. Encoded by bacteriophage and phage-derived bacterial genes, Acrs prevent CRISPR-mediated inhibition of phage infection and can also block ...
Doudna, Jennifer A, Fellmann, Christof, Lew, Rachel J, McMahon, Blake, Shivram, Haridha, Watters, Kyle E   +5 more
core   +3 more sources

Plasma extrachromosomal circular DNA as a biomarker in EGFR‐targeted therapy of non‐small cell lung cancer

Molecular Oncology, EarlyView.
Detection of extrachromosomal circular DNA (eccDNA) in plasma samples from EGFR‐mutated non‐small cell lung cancer patients. Plasma was collected before and during treatment with the EGFR‐tyrosine kinase inhibitor osimertinib. Plasma eccDNA was detected in all cancer samples, and the presence of the EGFR gene on eccDNA serves as a potential biomarker ...
Simone Stensgaard, Sarmad Mehmood, Eva Boysen Fynboe Ebert, Peter Meldgaard, Anindya Dutta, Boe S. Sorensen   +5 more
wiley   +1 more source

Tissue-specific Calibration of Real-time PCR Facilitates Absolute Quantification of Plasmid DNA in Biodistribution Studies

Molecular Therapy: Nucleic Acids, 2016
Analysis of the tissue distribution of plasmid DNA after administration of nonviral gene delivery systems is best accomplished using quantitative real-time polymerase chain reaction (qPCR), although published strategies do not allow determination of the ...
Joan K Ho, Paul J White, Colin W Pouton
doaj   +1 more source

PREPARASI DAN ISOLASI DNA PLASMID BAKTERI E.coli SEBAGAI NANOPARTIKEL DENGAN VARIASI JARI-JARI SENTRIFUGASI PADA MESIN SENTRIFUS [PDF]

, 2013
Abstrak Penelitian ini bertujuan untuk membuktikan bahwa DNA plasmid dari bakteri E.coli merupakan nanopartikel, mengetahui pengaruh perbedaan jari-jari sentrifugasi terhadap hasil isolasi DNA plasmid bakteri E.coli, dan mengetahui pengaruh isolasi DNA ...
Pabayita, Pekik
core