Results 111 to 120 of about 269,935 (266)

tert-Butyl N-{3-[(3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino]propyl}carbamate

Acta Crystallographica Section E, 2012
In the title compound, C18H21ClN2O4, the molecular sytructure is stabilized by two intramolecular N—H...O hydrogen bonds. In the crystal, molecules are linked by pairs of C—H...O hydrogen bonds, forming inversion dimers with graph-set
Jackson A. L. C. Resende, Javier A. Gomez   +1 more
doaj   +1 more source

-pyrazol-4-yl)-2-phenylthiazolidin-4-one: sheets built from N—H...N and C—H...π(arene) hydrogen bonds [PDF]

, 2004
The title compound, C19H18N4OS, crystallizes in space group P (1) over bar with Z' = 2. The two molecules in the selected asymmetric unit are nearly enantiomorphous. The molecules are linked by two N - H ... N hydrogen bonds [H ...
Braulio Insuasty, John N. Low, Insuasty, B, Christopher Glidewell, Orozco, F, Low, JN, Glidewell, C, Low, J N, Fabián Orozco, Justo Cobo, Cobo, J, Glidewell, Christopher   +11 more
core   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

Crystal structures of two 4H-chromene derivatives: 2-amino-3-cyano-4-(3,4-dichlorophenyl)-7-hydroxy-4H-benzo[1,2-b]pyran 1,4-dioxane monosolvate and 2-amino-3-cyano-4-(2,6-dichlorophenyl)-7-hydroxy-4H-benzo[1,2-b]pyran

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the title compounds, C16H9Cl2N2O2·C4H8O2 and C16H9Cl2N2O2, the bicyclic 4H-chromene cores are nearly planar with maximum deviations of 0.081 (2) and 0.087 (2) Å.
S. Silambarasan, A. Jamal Abdul Nasser, T. Mohandas   +2 more
doaj   +1 more source

On symmetrical O-H-O hydrogen bonds [PDF]

, 1964
Several hydrogen bonds with O-H-O bond lengths of about 2.4 Å are now known. Some of these have been examined well enough by neutron diffraction and other means to know with reasonable certainty that they are symmetrical hydrogen bonds, with either a ...
R.E. Rundle
core   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +1 more source

Crystal structure of 4-(3,4-dicyanophenoxy)-N-[3-(dimethylamino)propyl]benzamide monohydrate: a phenoxyphthalonitrile derivative

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C20H20N4O2·H2O, the planes of the phenoxy and phthalonitrile rings are oriented at a dihedral angle of 60.39 (5)°. The 3-(dimethylamino)propyl chain has an extended conformation and is cis with respect to the phthalonitrile ring ...
Senem Çolak, Salih Zeki Yıldız, Nagihan Çaylak Delibaş, Hasan Pişkin, Tuncer Hökelek   +4 more
doaj   +1 more source

Direct detection of N-H[...]O=C hydrogen bonds in biomolecules by NMR spectroscopy [PDF]

, 2008
A nuclear magnetic resonance (NMR) experiment is described for the direct detection of N-H[...]O=C hydrogen bonds (H-bonds) in 15N and 13C isotope-labeled biomolecules.
Stephan Grzesiek, Florence Cordier, Dingley, Andrew J, Dingley, Andrew J., Cordier, Florence, Grzesiek, Stephan, Lydia Nisius, Andrew J Dingley, Nisius, Lydia   +8 more
core   +1 more source

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

FEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan, Ikram A. Burney, Shika Hanif Malgundkar, Siva Ramamoorthy, Ressin Varghese, Mohamed A. Al‐Kindi, Hamad Al Riyami, Shadia Al Bahlani, Sergey Dobretsov, Syed Imran Hassan, Benjamin K. Tsang, Yahya Tamimi   +11 more
wiley   +1 more source

N′-(2,3-Dihydroxybenzylidene)isonicotinohydrazide

Acta Crystallographica Section E, 2010
The title compound, C13H11N3O3, crystallized with two independent molecules in the asymmetric unit. One of the molecules is twisted while the other is almost planar, with dihedral angles of 28.02 (6) and 2.42 (9)&#176 ...
Hümeyra Batı, Elif Tecer, Necmi Dege, Ayşin Zülfikaroğlu, Nuray Şenyüz   +4 more
doaj   +1 more source