Results 71 to 80 of about 233,556 (243)
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Image Impedance Improvement in T and π-Networks
Journal of Engineering and Sustainable Development, 2013 T and π networks find applications in the transmission line representations and in the simple filter design. These networks have the problem of a nonconstant image impedance over all the passband response .
Siba Mohammed Sharef +3 more
doaj
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Back stepping-Based-PID-Controller Designed for an Artificial Pancreas model
Al-Khawarizmi Engineering Journal, 2011 Artificial pancreas is simulated to handle Type I diabetic patients under intensive care by automatically controlling the insulin infusion rate. A Backstepping technique is used to apply the effect of PID controller to blood glucose level since there is ...
Taghreed M. Mohammad Ridha +2 more
doaj
MSCADMpox: A novel multi-stage classification model for effective monkeypox classification
Complex & Intelligent SystemsMonkeypox (Mpox) is a skin disease that appeared after the COVID-19 pandemic and spread to 127 countries. Early diagnosis of Mpox according to symptoms is difficult because it is closer to measles and chickenpox symptoms, while both lesions are ...
Doaa Ahmed Arafa +2 more
doaj +1 more source
Prospecting the protein design landscape
FEBS Letters, EarlyView.This review outlines the current state of various protein design approaches. We discuss the current possibilities enabled by recently released tools, highlight future avenues to pursue in protein design, and underscore the crucial role of key databases and resources for successful protein design workflows.
Jakob R. Riccabona +4 more
wiley +1 more source
Scientific ReportsStress inherent in the modern world is considered one of the main causes of Mental Health Disorders (MHDs) that spread in every country around the world.
Hend S. Saad +2 more
doaj +1 more source
SICE Journal of Control, Measurement, and System Integration, 2018 In this paper, a distributed 3-D pose synchronization law is proposed for a group of networked quadrotors. The quadrotor network consisting of multiple quadrotors with dynamics and interconnection topology between them is first defined, and then, the ...
Tatsuya Ibuki +3 more
doaj +1 more source