Results 131 to 140 of about 35,813,844 (294)

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

Optimization of Selenized Bletilla striata Polysaccharides Preparation by Response Surface Methodology and Determination of the Antioxidant Activity in Vitro

Shipin gongye ke-ji
In this study, the preparation process of selenized Bletilla striata polysaccharides (BSP-Se) was optimized, to explore whether higher antioxidant activity preparation could be obtained.
Lingfei TU, Yan LI, Zhen ZHANG
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

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

Study on the preparation process of quinoa anti-hypertensive peptide and its stability. [PDF]

Front Nutr, 2022
Fan X, Ma X, Maimaitiyiming R, Aihaiti A, Yang J, Li X, Wang X, Pang G, Liu X, Qiu C, Abra R, Wang L.   +11 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

Preparation of Anhydrous Magnesium Chloride from Magnesium Chloride Hexahydrate

, 2013
A method was proposed for the preparation of high-purity anhydrous magnesium chloride by using magnesium chloride hexahydrate and ammonium chloride as raw materials, and alumina as covering agent. X-ray diffraction was employed to investigate the process.
Lu, Xuchen, Pan, Feng, Zhang, Zhimin, Wang, Yun, Yang, Suping   +4 more
core  

Research progress in preparation technology of SiCf/SiC ceramic matrix composites

Cailiao gongcheng
Continuous silicon carbide fiber reinforced silicon carbide （SiCf/SiC） ceramic matrix composites are considered as the most promising advanced materials in the fields of hot end components of aviation turbine engines and thermal protection structures of ...
WANG Yanfei, LIU Rongjun, ZHANG Jin, DU Jinping, LI Duan   +4 more
doaj   +1 more source

Preparation process optimization and evaluation of bioactive peptides from Carya cathayensis Sarg meal. [PDF]

Curr Res Food Sci, 2023
Yan F, Wang Q, Teng J, Wu F, He Z.
europepmc   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS 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, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source