Results 71 to 80 of about 354,238 (282)

Site-directed mutagenesis of the proposed catalytic amino acids of the Sindbis virus capsid protein autoprotease [PDF]

open access: yes, 1990
The structural proteins of Sindbis virus are translated as a polyprotein precursor that is cleaved upon translation. The capsid protein is postulated to be a serine protease that releases itself from the N terminus of the nascent polyprotein by ...
Hahn, Chang S., Strauss, James H.
core  

Probing the Electrostatic and Steric Requirements for Substrate Binding in Human Platelet-Type 12-Lipoxygenase. [PDF]

open access: yes, 2019
Human platelet ALOX12 (hALOX12 or h12-LOX) has been implicated in a variety of human diseases. The present study investigates the active site of hALOX12 to more thoroughly understand how it positions the substrate and achieves nearly perfect regio- and ...
Aleem, Ansari Mukhtar   +7 more
core   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Selection Strategy for Site-Directed Mutagenesis Based on Altered β-Lactamase Specificity

open access: yesBioTechniques, 1998
Conventional approaches to oligonucleotide-directed mutagenesis rely upon the application of a selection strategy to maximize mutagenesis efficiencies.
Christine A. Andrews, Scott A. Lesley
doaj   +1 more source

Converting CooA from a Carbon Monoxide to an Oxygen-Sensing Heme Protein Transcription Factor: Investigations into the Structure and Mechanism of Gas Binding [PDF]

open access: yes, 2011
CooA is a carbon monoxide-sensing (CO-sensing) heme protein transcription factor that regulates gene activation in several bacteria and, importantly, is a convenient model for studying analogous proteins in the human body.
Sedoris, Amanda, Wagoner, Josh
core   +2 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

Analysis of Treacher Collins syndrome 4‐associated mutations in Schizosaccharomyces pombe

open access: yesFEBS Open Bio, EarlyView.
Fission yeast models carrying Treacher Collins syndrome type 4‐associated mutations reveal that impaired processivity of RNA polymerase I leads to defective rRNA transcription. This study highlights the essential role of a conserved arginine residue in Pol I elongation and provides mechanistic insight into the pathogenesis of ribosomopathies.
Kei Kawakami, Hiroaki Kato
wiley   +1 more source

Study on increase of nicotinamide mononucleotide yield by site-directed mutagenesis of nicotinamide phosphoribosyltransferase [PDF]

open access: yesZhongguo niangzao
Nicotinamide phosphoribosyltransferase (NAMPT) was a key rate-limiting enzyme in the biosynthetic pathway of nicotinamide mononucleotide (NMN). In this study, the NAMPT gene derived from Comamonadaceae bacterium was heterologous expressed in Escherichia ...
DONG Ping, XU Yifan, HOU Ying, LUO Xuegang, ZHANG Lin, QIAO Changsheng
doaj   +1 more source

Multiple site-directed mutagenesis via simple cloning by prolonged overlap extension

open access: yesBioTechniques, 2020
We describe the application of simple cloning by prolonged overlap extension for multiple site-directed mutagenesis in the same plasmid. We show that it is possible to use this technique with very short PCR templates.
Rasmus Hejlesen   +1 more
doaj   +1 more source

Catalysts on Demand: Selective Oxidations by Laboratory-Evolved Cytochrome P450 BM3 [PDF]

open access: yes, 2009
Efficient catalysts for selective oxidation of C-H bonds using atmospheric oxygen are highly desirable to decrease the economic and environmental costs associated with conventional oxidation processes.
Arnold, Frances H., Lewis, Jared C.
core   +2 more sources

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