نتایج جستجو برای: cation σ interactions

تعداد نتایج: 461362  

Journal: :Advanced Optical Materials 2023

Controlling and predicting the long-lived room-temperature phosphorescence (RTP) from organic materials are next challenges to address for realization of new efficient RTP systems. Here, a approach is developed reach these objectives by considering host–guest doped crystals, as well-suited model systems in that they allow comprehensive understanding synergetic structural interactions between cr...

Journal: :The Journal of biological chemistry 2015
Tao He Anne Gershenson Stephen J Eyles Yan-Jiun Lee Wenshe R Liu Jiangyun Wang Jianmin Gao Mary F Roberts

Cation-π interactions, where protein aromatic residues supply π systems while a positive-charged portion of phospholipid head groups are the cations, have been suggested as important binding modes for peripheral membrane proteins. However, aromatic amino acids can also insert into membranes and hydrophobically interact with lipid tails. Heretofore there has been no facile way to differentiate t...

Journal: :Fundamenta Mathematicae 1984

2013
Mikaela Stewart Tori Dunlap Elizabeth Dourlain Bryce Grant Lori McFail-Isom

The fine conformational subtleties of DNA structure modulate many fundamental cellular processes including gene activation/repression, cellular division, and DNA repair. Most of these cellular processes rely on the conformational heterogeneity of specific DNA sequences. Factors including those structural characteristics inherent in the particular base sequence as well as those induced through i...

2013
Mohan Pabba

σ-1R is the well-known subtype of σ-Rs that were originally proposed in 1976 (Martin et al., 1976). σ-1R is a 223 amino acid integral membrane protein consisting of a short N-terminus, a large C-terminus tail, and two transmembrane domains: one at the N-terminus and the other in the middle of the protein (Su et al., 2010). σ-1Rs are distributed throughout the brain. At the subcellular level, σ-...

Journal: :Progress of Theoretical Physics 1957

Davood Nori-Shargh, Hooriye Yahyaei Nasrin Masnabadi Seiedeh Negar Mousavi Sogand Sarikhani

NBO analysis and density functional theory (DFT: B3LYP/6-311+G**) based method were used to study the impacts of the anomeric effects (AE) on the conformational properties of 2-methoxy-1,2,4,5-tetrahydro-benzo[d]oxepine (1), -thiepine (2) and -selenepine (3). The Gibbs free energy difference (Geq–Gax) values (i.e. ΔGeq-ax) at 298.15 K and 1 atm between the axial and equatorial conformations inc...

Journal: :Formalized Mathematics 2015

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