Results 121 to 130 of about 286,859 (297)

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Directed evolution of enzyme catalysts

open access: yes, 1997
Directed enzyme evolution has emerged in the past few years as a powerful alternative to rational approaches for engineering biocatalysts. Prerequisites for successful directed evolution are functional expression in a suitable microbial host, a rapid ...
Arnold, Frances H., Kuchner, Olga
core  

Directed Evolution with Fast and Efficient Selection Technologies

open access: yesCHIMIA, 2001
Directed molecular evolution has proven to be a very powerful concept for the generation of proteins with improved properties, such as increased activity, binding affinity, folding efficiency or enhanced chemical and/or thermodynamic stability ...
Ekkehard Mössner, Andreas Plückthun
doaj  

Flavoproteins in Directed Evolution

open access: yes, 2010
In der vorliegenden Arbeit wurden zwei Enzyme, eine Enoatreduktase (YqjM) und eine Monooxigenase (\(P450_{BM3}\)), mittels "Gerichteter Evolution" auf die Akzeptanz neuer Substrate angepasst. Mittel iterativem CASTing (combinatorial active site saturation test) konnten in beiden Fällen hoch regio- und stereoselektive Mutanten erhalten werden ...
openaire   +2 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Directed evolution and structural analysis of an OB-fold domain towards a specifc binding reagent

open access: yes, 2011
Interactions between proteins are a central concept in biology, and understanding and manipulation of these interactions is key to advancing biological science.
Steemson, John Durand
core  

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Directed Evolution of an Artificial Hydroxylase Based on a Thermostable Human Carbonic Anhydrase Protein

open access: yes
The assembly of artificial metalloenzymes provides a second coordination sphere around a metal catalyst. Such a well-defined microenvironment can lead to enhancing the activities and selectivity of the catalyst.
Adriana, Faraone   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy