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Journal articles on the topic 'Rod-like Molecule'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Meng, Miao, Zheng Tang, Suman Mallick та ін. "Enhanced charge transport via d(δ)–p(π) conjugation in Mo2-integrated single-molecule junctions". Nanoscale 12, № 18 (2020): 10320–27. http://dx.doi.org/10.1039/d0nr00195c.

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We reported the charge transport properties of Mo<sub>2</sub>-integrated, rod-like molecules in single-molecule junctions. This study opens a door to the development of d(δ)–p(π) conjugated molecular wires with enhanced electrical conductivity.

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2

Yang, En-Che, Shi-Yi Huang, Wolfgang Wernsdorfer, et al. "A new member of a class of rod-like Mn12 single molecule magnets using 2-(pyridine-2-ly)propan-2-ol." RSC Advances 9, no. 65 (2019): 37740–46. http://dx.doi.org/10.1039/c9ra06280g.

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3

Ferreira, L. S., L. N. Jorge, A. A. Caparica, D. A. Nascimento, Minos A. Neto, and J. R. Sousa. "Thermodynamic properties of rod-like chains: Entropic sampling simulations." Modern Physics Letters B 30, no. 31 (2016): 1650378. http://dx.doi.org/10.1142/s0217984916503784.

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In this work, we apply entropic sampling simulations to a three-state model which has exact solutions in the microcanonical and grand-canonical ensembles. We consider N chains placed on an unidimensional lattice, such that each site may assume one of the three states: empty (state 1), with a single molecule energetically null (state 2), and with a single molecule with energy [Formula: see text] (state 3). Each molecule, which we will treat here as dimers, consists of two monomers connected one to each other by a rod. The thermodynamic properties such as internal energy, densities of dimers and

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4

Kantor, R., and T. Boublík. "Monte Carlo study of the Kihara rod-like molecule system." Czechoslovak Journal of Physics 38, no. 3 (1988): 321–28. http://dx.doi.org/10.1007/bf01597657.

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5

Smilgies, Detlef-M. "Molecular axes and planes as an Eigenvalue problem." Journal of Applied Crystallography 41, no. 2 (2008): 363–65. http://dx.doi.org/10.1107/s0021889807067787.

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A statistical approach is used to define the long molecular axis and the main molecular plane. While the concept of molecular axis and plane is immediately useful for simple rod-like or planar molecules, it can be easily generalized to arbitrary molecules as well as molecular subgroups. From the molecular axes and planes, the orientation of the molecule with respect to the lattice as well as intermolecular orientations can be characterized. The method is applied for a comparison of pentacene andpara-quinquephenyl crystal structures.

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6

Im, Hansu, Myong Yong Choi, Cheol Joo Moon, and Tae Ho Kim. "Crystal structure ofN,N′-didecylpyromellitic diimide." Acta Crystallographica Section E Crystallographic Communications 73, no. 6 (2017): 838–41. http://dx.doi.org/10.1107/s2056989017006867.

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The title compound, C30H44N2O4[systematic name: 2,6-didecylpyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone], consists of a central pyromellitic diimide moiety with terminal decyl groups at the N-atom positions. The centre of the molecule lies on a crystallographic inversion centre so the asymmetric unit contains one half-molecule. The molecule exhibits a rod-shaped conformation, like other similar compounds of this type, the distance between the ends of terminal decyl groups being 32.45 Å. The packing is dominated by a lamellar arrangement of the molecules, which is reinforced by C—H...O hydro

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7

Liu, Jianyu, Wei Feng, and Wenke Zhang. "A single-molecule study reveals novel rod-like structures formed by a thrombin aptamer repeat sequence." Nanoscale 12, no. 6 (2020): 4159–66. http://dx.doi.org/10.1039/c9nr09054a.

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8

Li, Li, and Chun-yan Liu. "Organic small molecule-assisted synthesis of high active TiO2 rod-like mesocrystals." CrystEngComm 12, no. 7 (2010): 2073. http://dx.doi.org/10.1039/b924170a.

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9

Dressel, Christian, Wolfgang Weissflog, and Carsten Tschierske. "Spontaneous mirror symmetry breaking in a re-entrant isotropic liquid." Chemical Communications 51, no. 87 (2015): 15850–53. http://dx.doi.org/10.1039/c5cc06843f.

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10

Noegel, A. A., S. Rapp, F. Lottspeich, M. Schleicher, and M. Stewart. "The Dictyostelium gelation factor shares a putative actin binding site with alpha-actinins and dystrophin and also has a rod domain containing six 100-residue motifs that appear to have a cross-beta conformation." Journal of Cell Biology 109, no. 2 (1989): 607–18. http://dx.doi.org/10.1083/jcb.109.2.607.

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The 120-kD gelation factor and alpha-actinin are among the most abundant F-actin cross-linking proteins in Dictyostelium discoideum. Both molecules are homodimers and have extended rod-like configurations that are respectively approximately 35 and 40 nm long. Here we report the complete cDNA sequence of the 120-kD gelation factor which codes for a protein of 857 amino acids. Its calculated molecular mass is 92.2 kD which is considerably smaller than suggested by its mobility in SDS-PAGE. Analysis of the sequence shows a region that is highly homologous to D. discoideum alpha-actinin, chicken f

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11

Kishikawa, Keiki, Shota Aoyagi, Michinari Kohri, Tatsuo Taniguchi, Masahiro Takahashi, and Shigeo Kohmoto. "Simple and highly efficient chiral dopant molecules possessing both rod- and arch-like units." Soft Matter 10, no. 34 (2014): 6582–88. http://dx.doi.org/10.1039/c4sm01214c.

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A simple chiral dopant molecule, (R)-1, possessing both rod- and arch-like units was prepared. It showed extremely large helical twisting powers (+123 to +228 μm<sup>−1</sup>) with P-helicity in nematic liquid crystal phases.

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12

Mendes, E., S. Viale, O. Santin, M. Heinrich, and S. J. Picken. "A small-angle neutron scattering investigation of rigid polyelectrolytes under shear." Journal of Applied Crystallography 36, no. 4 (2003): 1000–1005. http://dx.doi.org/10.1107/s0021889803013761.

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Solutions of a rigid polyelectrolyte molecule, sulfo-poly(phenyleneterephthalamide) (SPTTA), in deuterated water have been investigated using small-angle neutron scattering. At low concentrations (1 wt%) the scattering spectrum presents a soft maximum similar to that of the interaction of rod-like objects. Two counterions are used, H+and Li+, and it is shown that aggregation is favoured as the proportion of Li+counterions increases. When kept at rest at room temperature, the solutions exhibit spontaneous birefringence. A 1 wt% solution was investigated under shear and it is shown that a very s

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13

Cortini, Ruggero, Bertrand R. Caré, Jean-Marc Victor, and Maria Barbi. "Theory and simulations of toroidal and rod-like structures in single-molecule DNA condensation." Journal of Chemical Physics 142, no. 10 (2015): 105102. http://dx.doi.org/10.1063/1.4914513.

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14

Wille, H., E. M. Mandelkow, and E. Mandelkow. "The juvenile microtubule-associated protein MAP2c is a rod-like molecule that forms antiparallel dimers." Journal of Biological Chemistry 267, no. 15 (1992): 10737–42. http://dx.doi.org/10.1016/s0021-9258(19)50080-1.

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15

Horčic, Martin, Václav Kozmík, Jiří Svoboda, Vladimíra Novotná, and Damian Pociecha. "Transformation from a rod-like to a hockey-stick-like and bent-shaped molecule in 3,4′-disubstituted azobenzene-based mesogens." Journal of Materials Chemistry C 1, no. 45 (2013): 7560. http://dx.doi.org/10.1039/c3tc31593b.

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16

Keene, Douglas R., Gregory P. Lunstrum, Patricia Rousselle, and Robert E. Burgeson. "Kalinin: A new epithelial basement membrane adhesion molecule." Proceedings, annual meeting, Electron Microscopy Society of America 49 (August 1991): 178–79. http://dx.doi.org/10.1017/s0424820100085198.

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A mouse monoclonal antibody produced from collagenase digests of human amnion was used by LM and TEM to study the distribution and ultrastructural features of an antigen present in epithelial tissues and in cultured human keratinocytes, and by immunoaffinity chromatography to partially purify the antigen from keratinocyte cell culture media.By immunofluorescence microscopy, the antigen displays a tissue distribution similar to type VII collagen; positive staining of the epithelial basement membrane is seen in skin, oral mucosa, trachea, esophagus, cornea, amnion and lung. Images from rotary sh

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17

Yoshimura, Yosuke. "Fluid structure around a rod-like molecule and the additivity rule of the partial molar quantities." Molecular Physics 85, no. 5 (1995): 999–1016. http://dx.doi.org/10.1080/00268979500101611.

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18

Choi, E.-Joon, Fei Xu, Jong-Ho Son, and Wang-Cheol Zin. "Synthesis and Luminescence Properties of a Lollipop-Shaped Molecule Combined with Rod and Disc-Like Mesogens." Molecular Crystals and Liquid Crystals 551, no. 1 (2011): 60–68. http://dx.doi.org/10.1080/15421406.2011.600141.

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19

Zhang, Min, Lingyun Gu, Yangtao Fan, Yanhui Liu, and Xun Zhou. "Effect of temperature on DNA condensation at single molecule level." Modern Physics Letters B 31, no. 13 (2017): 1750147. http://dx.doi.org/10.1142/s0217984917501470.

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DNA condensation by multivalent cations has been extensively studied using single molecule experiment methods. To detect temperature effect on DNA condensation at the single molecule level, a strong correlation model was developed to investigate the behavior of DNA with self-interactions under constant tension. The simulation results are in line with the single molecule experiment that the kinetics of DNA condensation take on discontinuous and stepwise manner regardless of the toroid or rod-like conformation. By incorporating the temperature dependence of DNA persistence length into the strong

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20

Tian, Kun, Dong Hua Guan, Ping Wu, et al. "Controlled Crystallization of Tooth-Like Hydroxyapatite under Gelatin Monolayer." Key Engineering Materials 330-332 (February 2007): 663–66. http://dx.doi.org/10.4028/www.scientific.net/kem.330-332.663.

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Based on the molecular recognition theory, an organic molecules model was designed to induce the hydroxyapatite crystallization, to build a tooth-like calcium phosphate/hydroxyapatite under a controllable way in vitro. The cross-linking of collagen on the dentin surface and gelatin was optimized by varying the molar ratio of N,N-(3-dimethylaminopropyl)- N'-ethyl-carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) at a constant EDC concentration. CaCl2 and Na3PO4-12H2O solutions were added after the crosslinking process. The whole process requires repeating the crosslinking and mine

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21

Flores, R., J. A. Navarro, M. de la Peña, B. Navarro, S. Ambrós, and A. Vera. "Viroids with Hammerhead Ribozymes: Some Unique Structural and Functional Aspects with Respect to Other Members of the Group." Biological Chemistry 380, no. 7-8 (1999): 849–54. http://dx.doi.org/10.1515/bc.1999.104.

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AbstractViroids, subviral pathogens of plants, are composed of a single-stranded circular RNA of 246–399 nucleotides. Within the 27 viroids sequenced, avocado sunblotch, peach latent mosaic and chrysanthemum chlorotic mottle viroids (ASBVd, PLMVd and CChMVd, respectively) can form hammerhead structures in both of their polarity strands. These ribozymes mediate self-cleavage of the oligomeric RNAs generated in the replication through a rolling circle mechanism, whose two other steps are catalyzed by an RNA polymerase and an RNA ligase. ASBVd, and presumably PLMVd and CChMVd, replicate and accum

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22

PARKINSON, JOHN, KARL E. KADLER, and ANDY BRASS. "A MODEL OF TYPE I COLLAGEN FIBRILLOGENESIS BASED ON DIFFUSION LIMITED AGGREGATION." Journal of Biological Systems 03, no. 04 (1995): 1033–39. http://dx.doi.org/10.1142/s0218339095000927.

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The development of shape and form is intrinsic to the structure and function of many biological macromolecules including tubulin, actin and collagen. Type I collagen is a major structural protein in the body, providing mechanical strength for tissues such as bone and skin. It is present in the form of fibrils which display a regular banding pattern known as D-periodicity (where D = 67 nm). Type I collagen is a long rod-like molecule (300 nm ×1.5 nm) consisting of a triple helix formed from three polypeptide chains. In vivo and in vitro studies have shown that collagen molecules self-assemble i

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23

Yang, Li, and Robert Josephs. "Cryoelectron Microscopy of Red Cell Skeletons Reveals that Spectrin has a Helical Conformation." Microscopy and Microanalysis 3, S2 (1997): 333–34. http://dx.doi.org/10.1017/s1431927600008552.

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In vivo the red blood cell reversibly and rapidly deforms as it passes through the small capillaries. Although the physiochemical basis of the red cell's deformability is unknown, it is regarded as being a property of the membrane protein spectrin. We have used cryoelectron microscopy to study the structure of spectrin in membrane skeletons to determine how its molecular structure confers elastic properties on the cell membrane. Cryomicroscopy has the virtue of minimally perturbing easily deformable structures such as spectrin.Figure 1 is an electron micrograph of a portion of a frozen-hydrate

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24

Lee, Ji-Hoon, and Tae-Hoon Yoon. "Chiral domain formation from the mixture of achiral rod-like liquid crystal and tri boomerang-shaped molecule." Journal of Applied Physics 114, no. 8 (2013): 083501. http://dx.doi.org/10.1063/1.4816678.

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25

Yoshizawa, Atsushi, Ayumi Nishizawa, Kazuhito Takeuchi, Yoichi Takanishi, and Jun Yamamoto. "Interlayer Interactions Induced by Amphiphilicities of a Rod-Like Molecule Produce Frustrated Structures in Conventional Calamitic Phases." Journal of Physical Chemistry B 114, no. 42 (2010): 13304–11. http://dx.doi.org/10.1021/jp106269m.

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26

Osipov, M. A., and E. M. Terentjev. "Rotational Diffusion and Rheological Properties of Liquid Crystals." Zeitschrift für Naturforschung A 44, no. 9 (1989): 785–92. http://dx.doi.org/10.1515/zna-1989-0903.

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Abstract The rotational diffusion of a rod-like molecule in a liquid crystal is considered in the molecularfield approximation, and the corresponding Fokker-Planck equation is derived. It is shown that the microscopic friction coefficient, which is the parameter of this equation, possesses the usual exponential temperature dependence with the activation energy determined by the isotropic part of the intermolecular interaction energy. The viscous stress tensor of the nematic is obtained by averaging of the corresponding microscopic expression with the non-equilibrium distribution function. Fina

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27

Aliev, Mikhail A., Elena A. Ugolkova, and Nickolay Yu Kuzminyh. "The helicoidal modulated nematic phases in a model system of V-shaped molecules." International Journal of Modern Physics B 33, no. 10 (2019): 1950079. http://dx.doi.org/10.1142/s0217979219500796.

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The phase behavior of the melt of the symmetric V-shaped molecules has been inspected within the Landau–de Gennes approach. The arms of V-shaped molecule are modeled by rod-like segments connected at an external angle [Formula: see text]; these segments are assumed to be composed of monomer units. The phase diagram of the system contains regions of stability of the isotropic, homogeneous nematic, and modulated nematic phases: nematic twist bend (N[Formula: see text]) phase that is characterized by the three directors which move on a helix and one of these directors forms a fixed nonzero cone a

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28

Evans, M. W., G. C. Lie, and E. Clementi. "Molecular dynamics computer simulation of the rod-like molecule methyl hexa-tri-yne : Comparison with Doi/Edwards and Frenkel/Maguire theories." Journal of Molecular Liquids 39 (November 1988): 1–24. http://dx.doi.org/10.1016/0167-7322(88)80046-1.

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29

Gim, Min-Jun, Kyung-Won Park, and Suk-Won Choi. "Liquid crystalline cubic blue phases from a mixture of conventional rod-like nematogen and photoresponsive bent-core molecule." Optical Materials 36, no. 2 (2013): 414–18. http://dx.doi.org/10.1016/j.optmat.2013.10.002.

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30

Jakob, Manuela, Alexander Berg, Eli Stavitski, et al. "Photoinduced electron transfer through hydrogen bonds in a rod-like donor–acceptor molecule: A time-resolved EPR study." Chemical Physics 324, no. 1 (2006): 63–71. http://dx.doi.org/10.1016/j.chemphys.2005.11.044.

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31

Chang, Ji Young, Kyung Seo, Hyun Ju Cho, et al. "Imaging on a vapor deposited film by photopolymerization of a rod-like molecule consisting of two diacetylenic groups." Macromolecular Research 10, no. 4 (2002): 204–8. http://dx.doi.org/10.1007/bf03218306.

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32

McGregor, A., A. D. Blanchard, A. J. Rowe та D. R. Critchley. "Identification of the vinculin-binding site in the cytoskeletal protein α-actinin". Biochemical Journal 301, № 1 (1994): 225–33. http://dx.doi.org/10.1042/bj3010225.

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Using low-speed sedimentation equilibrium we have established that vinculin binds to alpha-actinin with a Kd of 1.3 x 10(-5) M. Electron microscopy of negatively stained preparations of vinculin revealed spherical particles (diameter 11.2 nm; S.D. 1.7 nm, n = 21), whereas alpha-actinin appeared as a rod-shaped particle (length 33 nm; S.D. 3.3 nm, n = 23). Mixtures of the two proteins contained both ‘lollipop’- and ‘dumbell’-shaped particles which we interpret as either one or two spherical vinculin molecules associated with the ends of the alpha-actinin rod. We have further defined the vinculi

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33

Tian, Kun, Hui Min Shuai, and Xiao Min Yang. "Biomimetic Synthesis of Tooth-Like Hydroxyapatite under Organic Polymer Monolayer." Materials Science Forum 610-613 (January 2009): 1054–58. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.1054.

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Based on the basic theory of molecular recognition , we design a organic molecules model to induce the crystallization of hydroxyapatite to synthesized tooth-like calcium phosphate/hydroxyapatite under a controllable way in vitro. The cross-linking of collagen on the dentin surface and extraneous collagen was optimized by varying the molar ratio of N,N-(3-dimethylaminopropyl)- N'-ethyl-carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) at a constant EDC concentration. CaCl2 and Na3PO4-12H2O solutions were added after the crosslinking process. X-ray photoelectron spectroscopic (XPS

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34

Lee, Jae-Jin, and Suk-Won Choi. "Preferential Circularly Polarized Luminescence from a Nano-Segregated Liquid Crystalline Phase Using a Polymerized Twisted Nematic Platform." Polymers 12, no. 11 (2020): 2529. http://dx.doi.org/10.3390/polym12112529.

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In this study, a polymerized twisted nematic (TN) network was used as an extrinsic chiral platform to overcome the heterogeneity during spontaneous symmetry breaking in a mixed system comprising an achiral bent-core molecule and rod-like mesogen. The TN platform was prepared by photopolymerizing a reactive mesogen dispersed in a low molecular weight liquid crystal with TN orientation. The use of TN orientation to correct the degeneracy in bent-core molecular systems has been previously reported; however, to the best of our knowledge, this is the first study that uses an extrinsic chiral platfo

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35

Quinlan, R. A., R. D. Moir, and M. Stewart. "Expression in Escherichia coli of fragments of glial fibrillary acidic protein: characterization, assembly properties and paracrystal formation." Journal of Cell Science 93, no. 1 (1989): 71–83. http://dx.doi.org/10.1242/jcs.93.1.71.

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We have expressed in Escherichia coli a 1258 bp cDNA fragment corresponding to 97% of mouse glial fibrillary acidic protein (GFAP), the principal intermediate filament protein of astrocytes. High levels of expression were obtained, as a fusion protein with 32 residues of the bacteriophage lambda cII protein, using the pLcII expression vector system of K. Nagai and H.-C. Thogersen. Although removal of the cII protein fragment by proteolysis using factor X proved difficult, a protein corresponding to most of the cDNA fragment was obtained by cleaving at the endogenous thrombin site near the midd

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36

Buss, F., H. Kent, M. Stewart, S. M. Bailer, and J. A. Hanover. "Role of different domains in the self-association of rat nucleoporin p62." Journal of Cell Science 107, no. 2 (1994): 631–38. http://dx.doi.org/10.1242/jcs.107.2.631.

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We have expressed rat nucleoporin p62 cDNA in Escherichia coli to obtain material for structural and self-association studies. Electron microscopy and circular dichroism spectroscopy are consistent with a rod-shaped molecule with an alpha-helical coiled-coil domain at its C terminus and a cross-beta structure at its N terminus, separated by a threonine-rich linker, which has a less-defined secondary structure. Electron microscopy and the solubility properties of fragments produced using thrombin and CNBr digestion indicate that p62 molecules associate to form linear chains and that a small reg

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37

Astumian, R. Dean. "Stochastically pumped adaptation and directional motion of molecular machines." Proceedings of the National Academy of Sciences 115, no. 38 (2018): 9405–13. http://dx.doi.org/10.1073/pnas.1714498115.

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Recent developments in synthetic molecular motors and pumps have sprung from a remarkable confluence of experiment and theory. Synthetic accomplishments have facilitated the ability to design and create molecules, many of them featuring mechanically bonded components, to carry out specific functions in their environment—walking along a polymeric track, unidirectional circling of one ring about another, synthesizing stereoisomers according to an external protocol, or pumping rings onto a long rod-like molecule to form and maintain high-energy, complex, nonequilibrium structures from simpler ant

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38

Varrot, Annabelle, Hiroki Yamamoto, Junichi Sekiguchi, John Thompson та Gideon J. Davies. "Crystallization and preliminary X-ray analysis of the 6-phospho-α-glucosidase from Bacillus subtilis". Acta Crystallographica Section D Biological Crystallography 55, № 6 (1999): 1212–14. http://dx.doi.org/10.1107/s0907444999003790.

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6-Phospho-α-glucosidase (GlvA) is the protein involved in the dissimilation of α-glycosides accumulated via a phosphoenolpyruvate-dependent maltose phosphotransferase system (PEP-PTS) in Bacillus subtilis. The purified enzyme has been crystallized in a form suitable for X-ray diffraction analysis. Thin rod-like crystals have been grown by the hanging-drop method in the presence of manganese and NAD. They diffract beyond 2.2 Å using synchrotron radiation and belong to the space group I222 (or its enantiomorph) with unit-cell dimensions a = 83.26, b = 102.56, c = 145.31 Å and contain a single mo

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39

Wang, Qing, Huang Chen, Hao Xing, Yuan Deng, Zhi-Wang Luo, and He-Lou Xie. "Long Rod-Like Liquid Crystal Containing Azobenzene and the Applications in Phase-Transition Regulation and Orientation of Nematic Liquid Crystal." Crystals 11, no. 4 (2021): 418. http://dx.doi.org/10.3390/cryst11040418.

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Phase-transition and orientation of liquid crystal (LC) are two crucial factors for LC application. In this work, a long rod-like LC compound containing double azobenzene (M1) is successfully designed and synthesized. The combing technologies of nuclear magnetic resonance (1H NMR, 13C NMR) and Fourier transform infrared spectroscopy (FTIR) are used to identify the chemical structure of the molecule. Additionally, the polarized optical microscopy (POM), differential scanning calorimetry (DSC), and one-dimensional wide-angle X-ray diffraction (1D WAXD) experimental results show that M1 exhibits

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40

Mutneja, Anoop, and Smarajit Karmakar. "Translational dynamics of a rod-like probe in supercooled liquids: an experimentally realizable method to study Stokes–Einstein breakdown, dynamic heterogeneity, and amorphous order." Soft Matter 17, no. 23 (2021): 5738–46. http://dx.doi.org/10.1039/d1sm00509j.

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We have proposed a novel method to study Stokes–Einstein Breakdown, Dynamic Heterogeneity, and Amorphous Order in supercooled liquids using elongated particles. Simplicity of the method will be attractive for single-molecule experiments in future.

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41

Javadi, Ala, Niklas Söderholm, Annelie Olofsson, Klas Flärdh, and Linda Sandblad. "Assembly mechanisms of the bacterial cytoskeletal protein FilP." Life Science Alliance 2, no. 3 (2019): e201800290. http://dx.doi.org/10.26508/lsa.201800290.

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Despite low-sequence homology, the intermediate filament (IF)–like protein FilP from Streptomyces coelicolor displays structural and biochemical similarities to the metazoan nuclear IF lamin. FilP, like IF proteins, is composed of central coiled-coil domains interrupted by short linkers and flanked by head and tail domains. FilP polymerizes into repetitive filament bundles with paracrystalline properties. However, the cations Na+ and K+ are found to induce the formation of a FilP hexagonal meshwork with the same 60-nm repetitive unit as the filaments. Studies of polymerization kinetics, in com

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42

Daigle, Isabelle, Monique Gilbert, and François Boucher. "Halogenated general anesthetics in visual photoreceptor membranes as examined by static and dynamic properties of rhodopsin." Biochemistry and Cell Biology 71, no. 1-2 (1993): 57–64. http://dx.doi.org/10.1139/o93-009.

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The visual pigment rhodopsin was used as an intrinsic probe to measure the effect of incorporation of enflurane into bovine rod outer segment disk membranes. At moderately low enflurane concentration, we find that, while extrinsic probes show little membrane perturbation, rhodopsin may experience large changes with respect to the native lipid–protein interactions which modulate some of its properties. Enflurane induces a small blue shift in the pigment λmax and a strong inhomogeneity in its photochemical behavior. As a function of enflurane concentration, there appears to be an increasing popu

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43

Schulz, Burkhard, Birgit Dietzel, Ingo Orgzall, Isabel Díez, and Chenggang Xu. "Aspects of Morphology Control during the Oxidative Synthesis of Electrically Conducting Polymers." High Performance Polymers 21, no. 5 (2009): 633–52. http://dx.doi.org/10.1177/0954008309339933.

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The formation of micro- and nanostructures during the oxidative polymerization of polypyrrole and polyaniline is investigated using different sulfonic acid dopants. Rod- or tube-like structures are found in polypyrrole as well as in polyaniline without addition of further compounds to the initial reaction mixture of monomer, dopant and oxidant. In these cases, always a crystalline precursor complex composed of a dopand molecule and the pure monomer (aniline) or a trimeric moiety (pyrrole) serves as in-situ template. In most cases the surface of the growing polymer is covered by secondary struc

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Hu, Zhongjian, Ryan T. Haws, Zhuping Fei, et al. "Impact of backbone fluorination on nanoscale morphology and excitonic coupling in polythiophenes." Proceedings of the National Academy of Sciences 114, no. 20 (2017): 5113–18. http://dx.doi.org/10.1073/pnas.1620722114.

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Fluorination represents an important strategy in developing high-performance conjugated polymers for photovoltaic applications. Here, we use regioregular poly(3-ethylhexylthiophene) (P3EHT) and poly(3-ethylhexyl-4-fluorothiophene) (F-P3EHT) as simplified model materials, using single-molecule/aggregate spectroscopy and molecular dynamic simulations, to elucidate the impacts of backbone fluorination on morphology and excitonic coupling on the molecular scale. Despite its high regioregularity, regioregular P3EHT exhibits a rather broad distribution in polymer chain conformation due to the strong

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Tsukita, S., M. Itoh, and S. Tsukita. "A new 400-kD protein from isolated adherens junctions: its localization at the undercoat of adherens junctions and at microfilament bundles such as stress fibers and circumferential bundles." Journal of Cell Biology 109, no. 6 (1989): 2905–15. http://dx.doi.org/10.1083/jcb.109.6.2905.

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In the previous study, we succeeded in isolating the cell-to-cell adherens junctions from rat liver (Tsukita, S., and S. Tsukita. 1989. J. Cell Biol. 108:31-41.). In this study, we have obtained mAbs specific to the 400-kD protein, which was identified as one of the major constituents of the undercoat of isolated adherens junctions. Immune blot analyses showed that this protein occurs in various types of tissues. Immunofluorescence microscopy and immune electron microscopy have revealed that this protein is distributed not only at the undercoat of adherens junctions but also along actin bundle

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Lee, Seungbok, and Peter A. Kolodziej. "Short Stop provides an essential link between F-actin and microtubules during axon extension." Development 129, no. 5 (2002): 1195–204. http://dx.doi.org/10.1242/dev.129.5.1195.

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Coordination of F-actin and microtubule dynamics is important for cellular motility and morphogenesis, but little is known about underlying mechanisms. short stop (shot) encodes an evolutionarily conserved, neuronally expressed family of rod-like proteins required for sensory and motor axon extension in Drosophila melanogaster. We identify Shot isoforms that contain N-terminal F-actin and C-terminal microtubule-binding domains, and that crosslink F-actin and microtubules in cultured cells. The F-actin- and microtubule-binding domains of Shot are required in the same molecule for axon extension

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Kölbel, Marius, Carsten Tschierske, and Siegmar Diele. "Formation of thermotropic and lyotropic smectic and columnar liquid crystalline phases by a novel type of rigid rod-like amphiphilic molecule." Chemical Communications, no. 15 (1998): 1511–12. http://dx.doi.org/10.1039/a802540a.

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Lyakhov, Alexander S., Ludmila S. Ivashkevich, Vladimir L. Survilo, and Tatjana V. Trukhachova. "Two succinic acid derivatives of 2-ethyl-6-methylpyridin-3-ol." Acta Crystallographica Section C Crystal Structure Communications 68, no. 1 (2011): o33—o36. http://dx.doi.org/10.1107/s0108270111054692.

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Crystals of bis(2-ethyl-3-hydroxy-6-methylpyridinium) succinate–succinic acid (1/1), C8H12NO+·0.5C4H4O42−·0.5C4H6O4, (I), and 2-ethyl-3-hydroxy-6-methylpyridinium hydrogen succinate, C8H12NO+·C4H5O4−, (II), were obtained by reaction of 2-ethyl-6-methylpyridin-3-ol with succinic acid. The succinate anion and succinic acid molecule in (I) are located about centres of inversion. Intermolecular O—H...O, N—H...O and C—H...O hydrogen bonds are responsible for the formation of a three-dimensional network in the crystal structure of (I) and a two-dimensional network in the crystal structure of (II). B

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Kraft, Paul, Daniel Kümmel, Andrea Oeckinghaus, et al. "Structure of D-63 from Sulfolobus Spindle-Shaped Virus 1: Surface Properties of the Dimeric Four-Helix Bundle Suggest an Adaptor Protein Function." Journal of Virology 78, no. 14 (2004): 7438–42. http://dx.doi.org/10.1128/jvi.78.14.7438-7442.2004.

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ABSTRACT Sulfolobus spindle-shaped virus 1 (SSV1) and its fusellovirus homologues can be found in many acidic (pH ≤ 4.0) hot springs (≥70°C) around the world. SSV1 contains a 15.5-kb double-stranded DNA genome that encodes 34 proteins with greater than 50 amino acids. A site-specific integrase and a DnaA-like protein have been previously identified by sequence homology, and three structural proteins have been isolated from purified virus and identified by N-terminal sequencing (VP1, VP2, and VP3). The functions of the remaining 29 proteins are currently unknown. To assign functions to these pr

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THINGSTAD, Torunn, Hans L. VOS, and John HILKENS. "Biosynthesis and shedding of epiglycanin: a mucin-type glycoprotein of the mouse TA3Ha mammary carcinoma cell." Biochemical Journal 353, no. 1 (2000): 33–40. http://dx.doi.org/10.1042/bj3530033.

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Epiglycanin is a mucin-type glycoprotein present at the surface of TA3Ha mouse mammary tumour cells. It is a long rod-like glycoprotein with a molecular mass of 500kDa. Its function has not yet been established but its overexpression can affect cell–cell and cell–matrix adhesion. To understand better the biological function of epiglycanin, we have studied the biochemical structure and biosynthesis of epiglycanin in TA3Ha cells. Pulse–chase labelling experiments with [3H]threonine revealed an early precursor with a molecular mass of approx. 300kDa containing approx. 5–10kDa of N-linked glycans.

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