Results 61 to 70 of about 513,910 (295)

Symmetries of Electrostatic Interaction between DNA Molecules

, 2007
We study a model for pair interaction $U$ of DNA molecules generated by the discrete dipole moments of base-pairs and the charges of phosphate groups, and find noncommutative group of eighth order ${\cal S}$ of symmetries that leave $U$ invariant.
A. A. Kornyshev, A. A. Kornyshev, A. Y. Grossberg, B. Samorĭ, C. Robinson, D. B. Dupre, E. Kats, E. P. Wigner, E. Raspaud, F. Livolant, J. S. Schwinger, J. Sponer, M. V. Rogacheva, R. Rill, S. A. Kuznetsova, V. Golo, V. L. Golo, Y. H. Kim, Y. M. Yevdokimov, Y. Volkov, Yu. M. Yevdokimov   +20 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

Nonadditivity of Polymeric and Charged Surface Interactions: Consequences for Doped Lamellar Phases [PDF]

, 2005
We explore theoretically the modifications to the interactions between charged surfaces across an ionic solution caused by the presence of dielectric polymers.
Cates, M. E., Croze, O. A.
core   +1 more source

Electrostatic Selectivity in Protein–Nanoparticle Interactions [PDF]

Biomacromolecules, 2011
The binding of bovine serum albumin (BSA) and β-lactoglobulin (BLG) to TTMA (a cationic gold nanoparticle coupled to 3,6,9,12-tetraoxatricosan-1-aminium, 23-mercapto-N,N,N-trimethyl) was studied by high-resolution turbidimetry (to observe a critical pH for binding), dynamic light scattering (to monitor particle growth), and isothermal titration ...
Kaimin, Chen, Yisheng, Xu, Subinoy, Rana, Oscar R, Miranda, Paul L, Dubin, Vincent M, Rotello, Lianhong, Sun, Xuhong, Guo   +7 more
openaire   +2 more sources

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

Electrochemical Methods for the Detection of Poly(ADP-ribose) Polymerase-1

International Journal of Electrochemical Science, 2021
Poly(ADP-ribose) polymerase-1 (PARP-1) plays an important role in DNA repair and apoptosis. The enzyme has been regarded as the biomarker for many diseases including cancer.
Ting Sun, Yanying Li, Feng Zhao
doaj   +1 more source

Electrostatic Nonlinear Dispersive Parametric Mode Interaction

Nonlinear Dynamics, 2022
Abstract Understanding and controlling the nonlinear coupling in micro/nanomechanical resonators are of great importance to the exploitation of advanced devices. The recently observed electrostatic nonlinear parametric coupling is a very interesting topic.
Xiaopeng Sun, Xin Zhou, Xingjing Ren, Lan Li, Tongqiao Miao, Kuo Lu, Xuezhong Wu, Dingbang Xiao   +7 more
openaire   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Enhancement of polysiloxane/epoxy resin compatibility through an electrostatic and van der Waals potential design strategy

Polymer Testing, 2023
The unclear molecule structures-compatibility relationship obstructs the enhancement of compatibility between polysiloxane and epoxy resins. Herein, we reveal the molecule structures-compatibility relationship and propose a synergistic design strategy to
Yuhao Liu, Ying Lin, Bin Cao, Kangning Wu, Liming Wang   +4 more
doaj   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source