Results 51 to 60 of about 636,871 (343)

Chlorido(4-methylpyridin-2-amine-κN1)(2-{[(4-methylpyridin-2-yl)imino-κN]methyl}phenolato-κO)copper(II)

Acta Crystallographica Section E, 2012
In the title complex, [Cu(C13H11N2O)Cl(C6H8N2)], the CuII atom adopts a distorted tetrahedral geometry being coordinated by the phenolic O atom and the azomethine N atom of the Schiff base ligand N-salicylidene 2-aminopyridine, and by the 2-aminopyridine
Bussa Bhagyaraju, P. Sambasiva Rao, Toka Swu   +2 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

6-[(5-tert-Butyl-2-hydroxyanilino)methylene]cyclohexa-2,4-dienone

Acta Crystallographica Section E, 2008
In the title compound, C17H19NO2, the dihedral angle between the two aromatic rings is 26.02 (5)°. One phenol O atom is deprotonated and the N atom of the azomethine unit carries the H atom, forming an intramolecular hydrogen bond. The packing
Uwe Böhme, Sabine Fels
doaj   +1 more source

Coherent states for the hydrogen atom: discrete and continuous spectra [PDF]

, 2001
We construct the systems of generalised coherent states for the discrete and continuous spectra of the hydrogen atom. These systems are expressed in elementary functions and are invariant under the $SO(3, 2)$ (discrete spectrum) and $SO(4, 1 ...
Atakishiyeva M K, Balbinot R, Barut A O, Barut A O, Barut A O, Bellomo P, Bhaumik D, Bohr N, Cornish F H J, Erdelyi A (ed), Erdelyi A (ed), Hongoh M, Jacobsen H P, Klauder J R, Klauder J R, Le Van Hoang, Mack G, Malkin I A, Malkin I A, McAnally D S, Mostowski J, Nandi S, Perelomov A M, Pol'shin A, Pol'shin S A, Rühl W, S A Pol'shin, Szmytkowski R, Thomova Z, Trifonov D A, Zlatev I   +30 more
core   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

The two-dimensional hydrogen atom revisited [PDF]

, 2002
The bound state energy eigenvalues for the two-dimensional Kepler problem are found to be degenerate. This "accidental" degeneracy is due to the existence of a two-dimensional analogue of the quantum-mechanical Runge-Lenz vector.
Alliluev, Aquilanti, Bander, Bander, Bargmann, D. G. W. Parfitt, Daboul, Daboul, Fock, M. E. Portnoi, Pauli, Yang, Yang   +12 more
core   +2 more sources

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

Gauge invariant hydrogen atom Hamiltonian

, 2010
For quantum mechanics of a charged particle in a classical external electromagnetic field, there is an apparent puzzle that the matrix element of the canonical momentum and Hamiltonian operators is gauge dependent. A resolution to this puzzle is recently
Chen, Xiang-Song, Lu, Xiao-Fu, Sun, Wei-Min, Wang, Fan   +3 more
core   +1 more source

Hydrogen-atom-mediated electrochemistry [PDF]

Nature Communications, 2013
Silicon dioxide thin films are widely used as dielectric layers in microelectronics and can also be engineered on silicon wafers. It seems counterintuitive that electrochemical reactions could occur on such an insulator without relying on tunnelling current.
Lee, Jin-Young, Lee, Jae Gyeong, Lee, Seok-Ha, Seo, Minjee, Piao, Lilin, Bae, Je Hyun, Lim, Sung Yul, Park, Young June, Chung, Taek Dong   +8 more
openaire   +3 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source