Results 51 to 60 of about 825,816 (298)

Tuning surface metallicity and ferromagnetism by hydrogen adsorption at the polar ZnO(0001) surface

, 2009
The adsorption of hydrogen on the polar Zn-ended ZnO(0001) surface has been investigated by density functional {\it ab-initio} calculations. An on top H(1x1) ordered overlayer with genuine H-Zn chemical bonds is shown to be energetically favorable. The H
J. Cerdá, K.-H. Hellwege, M. C. Muñoz, N. Sanchez, S. Gallego   +4 more
core   +1 more source

The effect of pressure on the crystal structure of hexagonal L-cystine [PDF]

, 2005
The crystal structure of hexagonal L-cystine has been determined at room temperature at pressures between 0.4 and 3.7 GPa; unit-cell dimensions were measured up to 6.4 GPa. The structure of this phase consists of molecules in their zwitterionic form, and
Allan, D R, Moggach, S A, Parsons, S, Sawyer, L, Warren, J E   +4 more
core   +1 more source

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

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

Percolation model for structural phase transitions in Li$_{1-x}$H$_x$IO$_3$ mixed crystals

, 2004
A percolation model is proposed to explain the structural phase transitions found in Li$_{1-x}$H$_x$IO$_3$ mixed crystals as a function of the concentration parameter $x$.
A.I. Barabash, C. Svensson, E. Coquet, F.E.A. Melo, F.R. Nash, G. Albrecht, J. A. Plascak, J. Le Roy, J. Le Roy, J.-M. Crettez, J.-M. Crettez, J.E. Ricci, J.P. Misset, K.J. Avdienko, M. A. Pimenta, M. Peyrard, M.A. Pimenta, M.B. Newton, M.D. Newton, M.E.J. Newman, M.E.J. Newman, M.T. Rogers, P. H. L. Martins, P.A. Giguère, P.H.L. Martins, S.A. Hamid, S.A. Hamid, S.C. van der Marck, S.K. Kurtz, W.H. Zachariasen   +29 more
core   +1 more source

Three protected tetrapeptides [PDF]

, 1996
The structures of three protected tetrapeptides, containing the Boc-Gly-Gly-Phe-X-OMe chain, tert-butoxycarbonyl-glycy-glycl-phenylalanine-leucine methyl ester dihydrate, Boc-Gly-Gly-L-Phe-D-Leu-OMe, C25H38N4O7·2H2O, tert-butoxycarbonyl-glycy-glycl ...
Casalone, Gianluigi, Fenude, Emma
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

Crystal structures of 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(2,4-dimethylphenyl)acetamide and 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(3-methoxyphenyl)acetamide

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title compounds, C14H17N5OS (I) and C13H15N5O2S (II), the dihedral angle between the pyrimidine and benzene rings is 58.64 (8)° in (I) and 78.33 (9)° in (II).
Manisha Choudhury, Vijayan Viswanathan, Ajay Kumar Timiri, Barij Nayan Sinha, Venkatesan Jayaprakash, Devadasan Velmurugan   +5 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

2,6-Diamino-4-chloropyrimidinium 4-carboxybutanoate

Acta Crystallographica Section E, 2014
In the title molecular salt, C4H6ClN4+·C5H7O4−, the cation is essentially planar, with a maximum deviation of 0.037 (1) Å for all non-H atoms. The anions are self-assembled through O—H...O hydrogen bonds, forming a supramolecular zigzag chain with graph ...
Bellarmin Edison, Kasthuri Balasubramani, Kaliyaperumal Thanigaimani, Nuridayanti Che Khalib, Suhana Arshad, Ibrahim Abdul Razak   +5 more
doaj   +1 more source