Results 131 to 140 of about 38,862,466 (240)

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

Avaliação do Solo Submetido a Adubação com Lixo Orgânico e Torta de Mamona com a Fenologia da Mamoneira

, 2011
Objetivou-se com este trabalho avaliar a fertilidade do solo submetido a adubação orgânica, após o plantio e desenvolvimento da mamoneira. O experimento iniciou-se em outubro de 2005 com término em março de 2006, em casa-de-vegetação, na sede da
Esberard Macedo Beltrão, Napoleão Beltrão; Embrapa Algodão;, Xavier Costa, Fabiana Fabiana; Universidade Estadual da Paraíba; fabyxavierster@gmail.com   +1 more
core  

Cyclophosphazene Intrinsically Derived Heteroatom (S, N, P, O)-Doped Carbon Nanoplates for Ultrasensitive Monitoring of Dopamine from Chicken Samples. [PDF]

Biosensors (Basel), 2022
Abbas Y, Akhtar N, Ghaffar S, Al-Sulami AI, Asad M, Mazhar ME, Zafar F, Hayat A, Wu Z.   +8 more
europepmc   +1 more source

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

Jeden svět na školách 2012

Společnost Člověk v tísni, o. p. s. zopakovala v lednu 2012 dotazníkové šetření mezi studenty českých středních škol. Šetření probíhalo ve spolupráci s agenturou pro výzkum trhu Millward Brown.
Člověk v tísni, o. p. s.
core   +1 more source

One-Pot Synthesis of Al-P-O Catalysts and Their Catalytic Properties for O-Methylation of Catechol and Methanol. [PDF]

Materials (Basel), 2021
Xu D, Ren J, Yue S, Zou X, Shang X, Wang X.   +5 more
europepmc   +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

Palladium-catalyzed phosphorylation of arylsulfonium salts with P(O)H compounds via C-S bond cleavage. [PDF]

RSC Adv, 2022
Liu H, Sun K, Li X, Zhang J, Lu W, Luo X, Luo H.   +6 more
europepmc   +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

P=O Functionalized Black Phosphorus/1T-WS₂ Nanocomposite High Efficiency Hybrid Photocatalyst for Air/Water Pollutant Degradation. [PDF]

Int J Mol Sci, 2022
Jeong RH, Lee JW, Kim DI, Park S, Yang JW, Boo JH.   +5 more
europepmc   +1 more source