Results 91 to 100 of about 3,641,455 (278)

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

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS 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

Effect of Thermal Modification and Picture Varnish Application on Color Change of Scots Pine (Pinus sylvestris L.) Wood

open access: yesDrewno
Scots pine wood represents one of the important tree species used by the wood processing industry in many countries for both interior and exterior applications. It is well known that thermal treatment alters the color of wood.
Hüseyin Peker   +2 more
doaj   +1 more source

OPTICAL WHITENING OF 50/50% PES/WOOL FABRICS [PDF]

open access: yesAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2017
If a high level of whiteness is required for wool and wool blends, it is normal to carry out a combined oxidative/reductive bleaching treatments. A higher whiteness can be achieved by the use of optical whitening agents. The aim of this experimental work
ÖNER Erhan, ATAK Onur, DURNA Melis
doaj  

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

Pinned Like a Butterfly: Whiteness and Racial Hatred Laws

open access: yes, 2008
This article explores ideas of whiteness and racial harm by focusing on an area of law in which these themes are pivotal: the regulation of racial hatred.
O'Connell, K
core  

Effects of Different Color Measurement Methods on the Translucency and Whiteness of Resin Composites

open access: yesMedžiagotyra
This study evaluated the reliability of relative translucency parameter (RTP00) and whiteness index (WID) measurements of single-shade and multi-shade resin composites (RCs) with different thicknesses using a spectrophotometer and a mobile colorimeter ...
Özhan YAĞCI   +2 more
doaj   +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

Discussion on Avoidance of Staining Problem in Cotton/CDPET Dyeing

open access: yesMATEC Web of Conferences, 2017
In this research, a novel approach has been proposed to remove stain problem from blended fabrics as an alternative option with traditional reduction clearing process.
Pervez Md. Nahid   +7 more
doaj   +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

Home - About - Disclaimer - Privacy