Results 41 to 50 of about 707 (168)

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

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

Exhaustive Extraction of Bioactive Components from Sargassum cristaefolium Brown Seaweed: Antioxidant Potential and Bioactivity

Hayati Journal of Biosciences
Bioactive components are essential ingredients of functional foods, supplements, pharmaceuticals, etc. Sargassum cristaefolium brown seaweed, as an Indonesian marine resource, provides promising bioactive components. The present study was to extract the
Abd. Rohim, Maylina Ilhami Khurniyati, Daning Kinanti Sutama, Safira Rahmadina, Nabilla Dwi Putri   +4 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

SELECTION AND ROLE OF A MIX ROSEMARY (Rosmarinus officinalis) - PALMITATE ASCORBYL AS ANTIOXIDANT IN A FRYING PROCESS

Vitae
Background: Several investigations report to rosemary as a plant rich in bioactive components with antioxidant potential, in this work, a rosemary extract was obtained that combined with ascorbyl palmitate provides a synergistic protection to a high fat ...
Jeanine Kathleen PEÑALOZA, Benjamin Alberto ROJANO, Ana Maria PIEDRAHITA   +2 more
doaj   +1 more source

Studying the Phytochemical Compounds of Ethanol and Ethyl Acetate Extracts of Three Ecotypes of Artemisia aucheri [PDF]

Majallah-i ̒Ulum-i Bāghbānī
IntroductionTaking into account Iran's unique meteorological and biological characteristics due to its geographic position. This has contributed to the variety and abundance of plant species cultivated there. The Artemisia species, which are among Iran's
S. Houshmand, S. Alizadeh- Salteh, S. Bolandnazar, E. Aryakia   +3 more
doaj   +1 more source

Systematic Evaluation of Different Coating Chemistries Used in Thin-Film Microextraction

Molecules, 2020
A systematic evaluation of eight different coatings made of solid phase extraction (SPE) and carbon-based sorbents immobilized with polyacrylonitrile in the thin-film microextraction (TFME) format using LC-MS/MS was described.
Jia-Wei Liu, Khaled Murtada, Nathaly Reyes-Garcés, Janusz Pawliszyn   +3 more
doaj   +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

Comparison of Measurements of Antioxidant Activity in the Selected Leafy Vegetables Depending on Extraction Solvent

Journal of Horticultural Research, 2017
Four leafy vegetable species, spinach (Spinacia oleracea), amaranthus (Amaranthus viridis), fenu-greek (Trigonella foenum-graecum) and bathua (Chenopodium album), were extracted with three different solvents (80% ethanol, 80% acetone and water) for ...
Jaiswal Swapnil Ganesh, Patel Madhumita, Saxena Devesh K., Naik Satyanarayan   +3 more
doaj   +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