Results 71 to 80 of about 1,040,966 (256)

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

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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

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

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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Stress patterns of complex German cardinal numbers [PDF]

, 2006
Wagner P, Paulson M. Stress patterns of complex German cardinal numbers. In: Proceedings of Speech Prosody 2006. 2006.German cardinal numbers show variable stress patterns on the phonetic surface.
Wagner, Petra ; https://orcid.org/, Paulson, Meike   +1 more
core  

Yellow fever outbreak, Imatong, southern Sudan. [PDF]

, 2004
In May 2003, the World Health Organization received reports about a possible outbreak of a hemorrhagic disease of unknown cause in the Imatong Mountains of southern Sudan.
Sang, Rosemary C, Victor O. Ofula, Onyango, Clayton O, Ofula, Victor O, Rodney L. Coldren, Robert Swanepoel, Coldren, Rodney L, Burt, Felicity J, Kevin M. De Cock, Rosemary C. Sang, Okoth, Fredrick A, Tukei, Peter M, Samson L. Konongoi, Abdourahmane Sow, Peter M. Tukei, De Cock, Kenin M, Waters, Norman C, Felicity J. Burt, Sow, Abourahmane, Norman C. Waters, Clayton O. Onyango, Fredrick A. Okoth, Konongoi, Sanson L, Clayton O. Onyango, Swanepoel, Robert   +24 more
core   +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

Abundance and distribution of thrips (Thysanoptera: Thripidae) in mangosteen (Garcinia mangostana L.) grown in single- and mixed-cropping systems [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2011
We investigated the abundance and distribution of thrips in a farmer’s mangosteen orchard by comparing single- andmixed-cropping systems at Nakhon Sri Thammarat province, the main planting area in southern Thailand, between April2005 and January 2006.
Kanitta Pankeaw, Aran Ngampongsai, Surakrai Permkam, Onkamol Rukadee   +3 more
doaj  

Difference in the Abundance of Scale Insect Parasitoids Among Four Cardinal Directions

Florida Entomologist, 2016
Summary We conducted a study to assess the potential differences in the abundances of hymenopteran parasitoids among cardinal directions. Experiments were conducted on scale insect-infested willow oak trees in the urban landscapes of South Carolina and ...
Ernesto Robayo Camacho, J. Chong, P. Schultz   +2 more
semanticscholar   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Stereo chromatic contrast sensitivity model to blue-yellow gratings.

Optics Express, 2016
As a fundamental metric of human visual system (HVS), contrast sensitivity function (CSF) is typically measured by sinusoidal gratings at the detection of thresholds for psychophysically defined cardinal channels: luminance, red-green, and blue-yellow ...
Jiachen Yang, Yancong Lin, Yun Liu
semanticscholar   +1 more source