Two scale generalized model of polypeptide chains
A. V. Badasyan, Sh. A. Tonoyan, A. V. Tsarukyan, Y. Sh. Mamasakhlisov, A. S. Benight et al.
The generalized model of polypeptide chains (GMPC) is expanded to simultaneously consider two types of interactions occurring over different scales. This new two scale GMPC is applied in several specific cases to examine: The combined influence of stacking or antistacking and hydrogen bonding, or sp ... [J. Chem. Phys. 128, 195101 (2008)] published Thu May 15, 2008.
Two scale generalized model of polypeptide chains
A. V. Badasyan, Sh. A. Tonoyan, A. V. Tsarukyan, Y. Sh. Mamasakhlisov, A. S. Benight et al.
The generalized model of polypeptide chains (GMPC) is expanded to simultaneously consider two types of interactions occurring over different scales. This new two scale GMPC is applied in several specific cases to examine: The combined influence of stacking or antistacking and hydrogen bonding, or sp ... [J. Chem. Phys. 128, 195101 (2008)] published Thu May 15, 2008.
Properties of contact matrices induced by pairwise interactions in proteins
Sanzo Miyazawa and Akira R. Kinjo
The properties of contact matrices (C matrices) needed for native proteins to be the lowest-energy conformations are considered in relation to a contact energy matrix (E matrix). The total conformational energy is assumed to consist of pairwise interaction energies between atoms or residues, each of ... [Phys. Rev. E 77, 051910 (2008)] published Wed May 14, 2008.
Surface-directed differentiation of embryonic stem cells
E. Hanley, J. L. Lauer, B. K. Micales, G. E. Lyons, and J. L. Shohet
Here, we explore how embryonic stem-cell (ESC) differentiation patterns on surfaces are affected by changes in the processing parameters of plasma-polymerized materials. Mouse ESCs were plated on plasma-polymerized tetraethylene glycol dimethyl ether (tetraglyme) surfaces on glass. Depending on the ... [Appl. Phys. Lett. 92, 193902 (2008)] published Wed May 14, 2008.
Conformational study of jet-cooled L-phenylglycine
Hyung Min Kim, Kyu Young Han, Juyeon Park, Seong Keun Kim, and Zee Hwan Kim
We investigated the conformational structures of L-phenylglycine in the gas phase by photoionization and double resonance spectroscopy techniques as well as high-level ab initio calculations. The UV-UV and IR-UV double resonance spectroscopy suggested that there exists only one conformer that has a ... [J. Chem. Phys. 128, 184313 (2008)] published Wed May 14, 2008.
Molecular motion in cell membranes: Analytic study of fence-hindered random walks
V. M. Kenkre, L. Giuggioli, and Z. Kalay
A theoretical calculation is presented to describe the confined motion of transmembrane molecules in cell membranes. The study is analytic, based on Master equations for the probability of the molecules moving as random walkers, and leads to explicit usable solutions including expressions for the mo ... [Phys. Rev. E 77, 051907 (2008)] published Tue May 13, 2008.
Attractive membrane domains control lateral diffusion
Martin B. Forstner, Douglas S. Martin, Florian Ruckerl, Josef A. Kas, and Carsten Selle
Lipid membranes play a fundamental role in vital cellular functions such as signal transduction. Many of these processes rely on lateral diffusion within the membrane, generally a complex fluid containing ordered microdomains. However, little attention has been paid to the alterations in transport d ... [Phys. Rev. E 77, 051906 (2008)] published Fri May 9, 2008.