Results 101 to 110 of about 6,657,010 (237)

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

open access: yesFEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

An exploration into the environmental identities and sense of place of internationally mobile adolescents

open access: yes, 2016
This study considers how international relocations impact the environmental identities of mobile adolescents, popularly known as "Third Culture Kids", focusing on those residing in Hong Kong. In a mixed methods approach, the Nisbet, Zelenski, and Murphy (
Urquhart, Sarah
core  

Identity and Environmental Perspectives: A Qualitative Study

open access: yes, 2017
This paper is a qualitative study regarding Identity and its effect on peoples relationship with the environment and environmentalism. By using interviews and a qualitative analytical framework, the goal of the study is to illuminate the nuances of the ...
Rakes, Thomas
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS 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

open access: yesFEBS 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

Environmental radiation surveillance in Kansas, 1989-1990

open access: yes, 1990
Prepared by Environmental Radiation and Emergency Preparedness Section, Radiation Control Program, Bureau of Environmental Health ServicesThis publication reports the results of the environmental radiation surveillance programs conducted by the Kansas ...
Kansas Bureau of Environmental Health Services
core   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Adapting Values-Beliefs-Norms (VBN) model and the Value-Identity-Personal norm (VIP) model into ecotourism intention: A case study of Cat Tien National Park, Vietnam

open access: yesInternational Journal of Geoheritage and Parks
This study investigates the adaptation of the Values-Beliefs-Norms (VBN) model and the Value-Identity-Personal norm (VIP) model into the context of ecotourism intention.
The-Bao Luong
doaj   +1 more source

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