Results 71 to 80 of about 3,008,870 (301)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Olfactory facilitation of dual-task performance

Neuroscience Letters, 2005
We investigated the differential effects of olfactory stimulation on dual-task performance under conditions of varying task difficulty. Participants detected visually presented target digits from amongst a stream of visually presented distractor letters in a rapid serial visual presentation (RSVP) task.
Ho, C, Spence, C
openaire   +5 more sources

Dual-Task Processing With Identical Stimulus and Response Sets: Assessing the Importance of Task Representation in Dual-Task Interference

Frontiers in Psychology, 2018
Limitations in our ability to produce two responses at the same time – that is, dual-task interference – are typically measured by comparing performance when two stimuli are presented and two responses are made in close temporal proximity to when a ...
Eric H. Schumacher, Savannah L. Cookson, Derek M. Smith, Tiffany V. N. Nguyen, Zain Sultan, Katherine E. Reuben, Eliot Hazeltine   +6 more
doaj   +1 more source

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, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

The effects of different types of dual-task gait training on lower-limb coordination during dual-task gait in patients with stroke: a single-blind randomized controlled trial

BMC Sports Science, Medicine and Rehabilitation
Background Declined lower-limb coordination is one of the main factors to the increased risk of falls in patients with stroke. Dual-task gait training has been shown to be effective in improving lower-limb coordination during single-task walking. However,
Huimeng Chen, Qiujie Li, Ying Chen, Hui Liu, Xianglin Wan   +4 more
doaj   +1 more source

Relationship between executive function and dual-task walking in people with Parkinson's disease

Frontiers in Aging Neuroscience
BackgroundCognitive impairment may present early in people with Parkinson's disease (PwPD), with deficits in executive function potentially impacting gait performance.
Jun-Hong Zhou, Ray-Yau Wang, Yo-Tsen Liu, Yo-Tsen Liu, Yo-Tsen Liu, Yo-Tsen Liu, Shih-Jung Cheng, Shih-Jung Cheng, Hsin-Hsuan Liu, Hsin-Hsuan Liu, Yea-Ru Yang   +10 more
doaj   +1 more source

Separation of Tasks Into Distinct Domains, Not Set-Level Compatibility, Minimizes Dual-Task Interference

Frontiers in Psychology, 2019
Dual-task costs are often significantly reduced or eliminated when both tasks use compatible stimulus-response (S-R) pairs. Either by design or unintentionally, S-R pairs used in dual-task experiments that produce small dual-task costs typically have two
Kimberly M. Halvorson, Eliot Hazeltine
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source