Results 81 to 90 of about 255,270 (305)

Deuterium Fractionation: the Ariadne's Thread from the Pre-collapse Phase to Meteorites and Comets today

, 2014
The Solar System formed about 4.6 billion years ago from a condensation of matter inside a molecular cloud. Trying to reconstruct what happened is the goal of this chapter.
Bockelee-Morvan, Dominique, Caselli, Paola, Ceccarelli, Cecilia, Mousis, Olivier, Pizzarello, Sandra, Robert, Francois, Semenov, Dmitry   +6 more
core   +3 more sources

Resolving the chemistry in the disk of TW Hydrae I. Deuterated species [PDF]

, 2008
We present Submillimeter Array (SMA) observations of several deuterated species in the disk around the classical T Tauri star TW Hydrae at arcsecond scales, including detections of the DCN J=3-2 and DCO+ J=3-2 lines, and upper limits to the HDO 3(1,2)-2 ...
Chunhua Qi, David J. Wilner, Geoffrey A. Blake, Hogerheijde M. R., Michiel R. Hogerheijde, Yuri Aikawa   +5 more
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Pasture Recovery Period Affects Humic Substances and Oxidations of Organic Matter in Eastern Amazon

Agronomy
Land management practices that overlook soil limitations and potential have led to varying degrees of degradation. This study evaluates the carbon content in chemical and oxidisable soil fractions across different pasture recovery periods, comparing them
Carlos Augusto Rocha de Moraes Rego, Juan López de Herrera, Paulo Sérgio Rabello de Oliveira, Luciano Cavalcante Muniz, Jean Sérgio Rosset, Eloisa Mattei, Lucas da Silveira, Marinez Carpiski Sampaio, Marcos Gervasio Pereira, Karolline Rosa Cutrim Silva, Ismênia Ribeiro de Oliveira   +10 more
doaj   +1 more source

Chemical analysis of soluble fractions from normal and autolysed rabbit liver by column chromatography [PDF]

, 1966
Chromatography on Sephadex G-200 was performed with the soluble fraction of homogenated rabbit liver, which was extracted with 0.1 M phosphate buffer containing 0.1 M NaCl.
Aizawa, Tadashi, Matsuura, Yasushi, Yamamoto, Saburo, Yamamoto, Yasuhisa, Yoshikawa, Satoshi   +4 more
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Chlorine and Bromine Isotope Fractionation of Halogenated Organic Pollutants on Gas Chromatography Columns

, 2017
Compound-specific chlorine/bromine isotope analysis (CSIA-Cl/Br) has become a useful approach for degradation pathway investigation and source appointment of halogenated organic pollutants (HOPs).
Fan, Yujuan, Liu, Jun, Peng, Xianzhi, Tan, Jianhua, Tang, Caiming, Xiong, Songsong   +5 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

CH2D+, the Search for the Holy Grail

, 2013
CH2D+, the singly deuterated counterpart of CH3+, offers an alternative way to mediate formation of deuterated species at temperatures of several tens of K, as compared to the release of deuterated species from grains.
cernicharo, J., Gerin, M., Lis, D. C., Marcelino, N., Roueff, E., Tercero, B., Wootten, A.   +6 more
core   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source