Results 81 to 90 of about 13,881,946 (357)

Computationally designed variants of Escherichia coli chorismate mutase show altered catalytic activity [PDF]

, 2005
Computational protein design methods were used to predict five variants of monofunctional Escherichia coli chorismate mutase expected to maintain catalytic activity.
Keeffe, Jennifer R., Lassila, Jonathan Kyle, Mayo, Stephen L., Oelschlaeger, Peter   +3 more
core   +2 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Nerve Agent Hydrolysis Activity Designed into a Human Drug Metabolism Enzyme [PDF]

, 2010
Organophosphorus (OP) nerve agents are potent suicide inhibitors of the essential neurotransmitter-regulating enzyme acetylcholinesterase. Due to their acute toxicity, there is significant interest in developing effective countermeasures to OP ...
Andrew C. Hemmert, C. Linn Cadieux, Carol C. Edwards, Douglas M. Cerasoli, Fernando Rodrigues-Lima, John R. Cashman, Jonathan S. Edwards, Lyudmila Tsurkan, Matthew R. Redinbo, Monika Wierdl, Philip M. Potter, Roberto A. Chica, Shane A. Kasten, Stephen L. Mayo, Steven M. Lewis, Tamara C. Otto   +15 more
core   +6 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

In Vitro Stability of Phytase from Recombinant Bacteria E. Coli BL21 (DE3) EAS1-AMP [PDF]

, 2011
The objective of the research was to inquire the Km, Vm, activity, intracellular phytase stability exposed to pH variation, temperature variation and protease (pepsin and pancreas) in vitro.
Bachruddin, Z., Nuhriawangsa, A. M. P., SAJIDAN,, Wibowo, A.   +3 more
core  

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Immobilisation of enzymes to Perloza cellulose resin : this thesis was presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University / [PDF]

, 1998
The studies reported in this thesis describe the use of Perloza™ beaded cellulose resin as a solid support for enzyme immobilisation via covalent binding.
Cross, Jennifer Anne
core  

Genome-scale architecture of small molecule regulatory networks and the fundamental trade-off between regulation and enzymatic activity [PDF]

, 2017
Metabolic flux is in part regulated by endogenous small molecules that modulate the catalytic activity of an enzyme, e.g., allosteric inhibition. In contrast to transcriptional regulation of enzymes, technical limitations have hindered the production of ...
Briars, Emma, Christodoulou, Dimitris, Goldford, Joshua E., Noor, Elad, Reznik, Ed, Sauer, Uwe, Segrè, Daniel   +6 more
core   +2 more sources

Lipid-induced NOX2 activation inhibits autophagic flux by impairing lysosomal enzyme activity[S]

Journal of Lipid Research, 2015
Autophagy is a catabolic process involved in maintaining energy and organelle homeostasis. The relationship between obesity and the regulation of autophagy is cell type specific.
Bharat P. Jaishy, Quanjiang Zhang, H. S. Chung, C. Riehle, Jamie E Soto, Stephen Jenkins, Patrick Abel, L. Cowart, J. V. Van Eyk, E. Abel   +9 more
semanticscholar   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source