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1.
874 Accesses
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A biophysical model for transcription factories
Ana Z Canals-Hamann, Ricardo das Neves, Joyce E Reittie, Carlos Iñiguez, Shamit Soneji, Tariq Enver, Veronica J Buckle, Francisco J Iborra BMC Biophysics 2013, 6:2 (9 February 2013)
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Editor’s summary
Chromatin can act as a multi-block copolymer with active-inactive monomers that spontaneously self-organize to form microdomains, demonstrating that geometrical constraints alone can potentially yield an organized transcription factory.
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2.
544 Accesses
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Diffusion of hydrophobin proteins in solution and interactions with a graphite surface
Paolo Mereghetti, Rebecca C Wade BMC Biophysics 2011, 4:9 (21 April 2011)
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Editor’s summary
Hydrophobins, the most powerful surface-active proteins known, exist in solution as a mixture of monomers in equilibrium with different types of oligomers but in contact with a graphite layer they form tetramers and accumulate close to the hydrophobic surface.
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3.
350 Accesses
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Stochastic dynamics of virus capsid formation: direct versus hierarchical self-assembly
Johanna E Baschek, Heinrich C R Klein, Ulrich S Schwarz BMC Biophysics 2012, 5:22 (17 December 2012)
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Editor’s summary
Computational modeling of the way that viruses are able to self-assemble their protein capsid coats suggests that for complex viruses with more stable bonds, a piecemeal hierarchical assembly process is most likely.
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4.
282 Accesses
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Pulling chromatin apart: Unstacking or Unwrapping?
Jean Marc Victor, Jordanka Zlatanova, Maria Barbi, Julien Mozziconacci BMC Biophysics 2012, 5:21 (27 November 2012)
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Editor’s summary
A zig-zag model of chromatin fiber morphology is able to quantitatively explain the mechanical properties of chromatin under external stress, and provides an alternative explanation to the widespread solenoid model interpretation.
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5.
217 Accesses
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Effects of spermine NONOate and ATP on protein aggregation: light scattering evidences
Rasha Bassam, Ilya Digel, Juergen Hescheler, Ayseguel Temiz Artmann, Gerhard M Artmann BMC Biophysics 2013, 6:1 (4 January 2013)
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6.
216 Accesses
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Molecular dynamics and mutational analysis of the catalytic and translocation cycle of RNA polymerase
Maria L Kireeva, Kristopher Opron, Steve A Seibold, Céline Domecq, Robert I Cukier, Benoit Coulombe, Mikhail Kashlev, Zachary F Burton BMC Biophysics 2012, 5:11 (7 June 2012)
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Editor’s summary
The catalytic confirmation of the RNA polymerase ternary elongation complex (TEC) has a closed trigger loop with a relatively dehydrated active site, in contrast to the inactive open confirmation of the trigger loop which supports translocation.
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7.
216 Accesses
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Hierarchical super-structure identified by polarized light microscopy, electron microscopy and nanoindentation: Implications for the limits of biological control over the growth mode of abalone sea shells
Andreas S Schneider, Birgit Heiland, Nicolas J Peter, Christina Guth, Eduard Arzt, Ingrid M Weiss BMC Biophysics 2012, 5:19 (12 September 2012)
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Editor’s summary
The hierarchical super-structure of abalone mollusc shells can be revealed by conventional light microscopy methods, opening the potential to study shell growth mechanisms in vivo at high resolution.
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8.
180 Accesses
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Diffusion and association processes in biological systems: theory, computation and experiment
Paolo Mereghetti, Daria Kokh, J Andrew McCammon, Rebecca C Wade BMC Biophysics 2011, 4:2 (2 March 2011)
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Editor’s summary
Rebecca Wade and colleagues provide a snapshot of research from a thematic series of articles on biological diffusion and Brownian dynamics simulations, which highlights a vibrant research field with growing synergy between experimental and computational studies.
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9.
174 Accesses
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Hierarchies in eukaryotic genome organization: Insights from polymer theory and simulations
Balaji VS Iyer, Martin Kenward, Gaurav Arya BMC Biophysics 2011, 4:8 (15 April 2011)
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Editor’s summary
Gaurav Arya and colleagues review results from state-of-the-art microscopy and chromosome conformation capture techniques that are being used to understand the three dimensional structure of the genome and the physical principles governing its folding.
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10.
172 Accesses
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Intracellular chemical gradients: morphing principle in bacteria
Robert G Endres BMC Biophysics 2012, 5:18 (7 September 2012)
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Editor’s summary
Robert Endres discusses a new study in BMC Biophysics that supports the emerging view that intracellular chemical gradients can exist in bacterial cells, and how these may limit in vitro analyses.
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11.
169 Accesses
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Diffusion in crowded biological environments: applications of Brownian dynamics
Maciej Długosz, Joanna Trylska BMC Biophysics 2011, 4:3 (2 March 2011)
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Editor’s summary
Maciej Dlugosz and Joanna Trylska review recent developments in particle-based Brownian dynamics algorithms and their application to model diffusive transport in crowded systems, which are proving useful in improving our understanding of metabolism, transport and signaling.
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12.
156 Accesses
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The multiple faces of self-assembled lipidic systems
Guillaume Tresset PMC Biophysics 2009, 2:3 (17 April 2009)
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| PubMed | Cited on BioMed Central
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Editor’s summary
From the plasma membrane of archaebacteria to gene delivery, self-assembled lipidic systems have left their mark in cell biology and nanobiotechnology; however, the underlying physics is yet to be fully unraveled.
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13.
156 Accesses
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Two-photon time-lapse microscopy of BODIPY-cholesterol reveals anomalous sterol diffusion in chinese hamster ovary cells
Frederik W Lund, Michael A Lomholt, Lukasz M Solanko, Robert Bittman, Daniel Wüstner BMC Biophysics 2012, 5:20 (18 October 2012)
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14.
148 Accesses
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Many-particle Brownian and Langevin Dynamics Simulations with the Brownmove package
Tihamér Geyer BMC Biophysics 2011, 4:7 (13 April 2011)
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Editor’s summary
A new "brownmove" simulation package designed for coarse-grained many-particle simulations of biologically relevant diffusion and transport processes combines Brownian and Langevin Dynamics propagation with fast hydrodynamics, a flexible protein model and interfaces for "open" simulation settings.
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15.
148 Accesses
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Molecular dynamics simulations on aqueous two-phase systems - Single PEG-molecules in solution
Stefan A Oelmeier, Florian Dismer, Jürgen Hubbuch BMC Biophysics 2012, 5:14 (8 August 2012)
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16.
147 Accesses
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Protein dynamics at Eph receptor-ligand interfaces as revealed by crystallography, NMR and MD simulations
Haina Qin, Liangzhong Lim, Jianxing Song BMC Biophysics 2012, 5:2 (25 January 2012)
Abstract | Full text | PDF
| PubMed | Cited on BioMed Central
| F1000 Biology
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Editor’s summary
Structural determination of the EphA4 ligand binding domain provides the first experimental and computational evidence that intrinsic dynamics are most likely to be responsible for the observed high conformational diversity that mediates binding affinity and specificity.
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17.
147 Accesses
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On the electrostatic component of protein-protein binding free energy
Kemper Talley, Carmen Ng, Michael Shoppell, Petras Kundrotas, Emil Alexov PMC Biophysics 2008, 1:2 (5 November 2008)
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Editor’s summary
This paper presents a comprehensive statistical analysis of the sensitivity of the electrostatic component of binding free energy (DDGel) with respect with different force fields (Charmm, Amber, and OPLS), different values of the internal dielectric constant, and different presentations of molecular surface (different values of the probe radius).
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18.
143 Accesses
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DelPhi: a comprehensive suite for DelPhi software and associated resources
Lin Li, Chuan Li, Subhra Sarkar, Jie Zhang, Shawn Witham, Zhe Zhang, Lin Wang, Nicholas Smith, Marharyta Petukh, Emil Alexov BMC Biophysics 2012, 5:9 (14 May 2012)
Abstract | Full text | PDF
| PubMed | Cited on BioMed Central
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Editor’s summary
The DelPhi package is a comprehensive and user-friendly suite of tools for modelling electrostatic potentials in macromolecules using the Poisson-Boltzmann Equation, and is now enriched with additional features for greater usability.
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19.
140 Accesses
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Clustering of HIV-1 Subtypes Based on gp120 V3 Loop electrostatic properties
Aliana López de Victoria, Chris A Kieslich, Apostolos K Rizos, Elias Krambovitis, Dimitrios Morikis BMC Biophysics 2012, 5:3 (7 February 2012)
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Editor’s summary
The spatial distributions of electrostatic potentials and charges in the V3 loop of HIV-1 protein gp120 may be responsible for both long- and short-range interactions with co-receptors, ultimately affecting viral entry into cells
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20.
132 Accesses
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Inverse tuning of metal binding affinity and protein stability by altering charged coordination residues in designed calcium binding proteins
Anna Maniccia, Wei Yang, Julian A Johnson, Shunyi Li, Harianto Tjong, Huan-Xiang Zhou, Lev A Shaket, Jenny J Yang PMC Biophysics 2009, 2:11 (21 December 2009)
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Editor’s summary
We report a systematic investigation of the role of local charge number and type of coordination residues in Ca2+ binding and protein stability, and observe a striking tradeoff between Ca2+/Ln3+ affinity and protein stability when the net charge of the coordination residues is varied.
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21.
132 Accesses
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Can dietary fibre help provide safer food products for sufferers of gluten intolerance? A well-established biophysical probe may help towards providing an answer
M Kök, Richard Gillis, Shirley Ang, David Lafond, Arthur S Tatham, Gary Adams, Stephen E Harding BMC Biophysics 2012, 5:10 (17 May 2012)
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Editor’s summary
Stephen Harding and colleagues speculate on the role that the ultracentrifuge assay procedure could play in detecting non-toxic biopolymers capable of sequestering ingested gluten peptides, with the eventual aim of reducing gluten intolerance symptoms.
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22.
132 Accesses
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Physical constraints on the establishment of intracellular spatial gradients in bacteria
Carolina Tropini, Naveed Rabbani, Kerwyn Huang BMC Biophysics 2012, 5:17 (29 August 2012)
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23.
130 Accesses
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The influence of membrane physical properties on microvesicle release in human erythrocytes
Laurie J Gonzalez, Elizabeth Gibbons, Rachel W Bailey, Jeremy Fairbourn, Thaothanh Nguyen, Samantha K Smith, Katrina B Best, Jennifer Nelson, Allan M Judd, John D Bell PMC Biophysics 2009, 2:7 (24 August 2009)
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Editor’s summary
Exposure of human erythrocytes to elevated intracellular calcium causes fragments of the cell membrane to be shed as microvesicles. This study tested the hypothesis that microvesicle release depends on microscopic membrane physical properties such as lipid order, fluidity, and composition.
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24.
123 Accesses
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Fluorescence anisotropy of diphenylhexatriene and its cationic Trimethylamino derivative in liquid dipalmitoylphosphatidylcholine liposomes: opposing responses to isoflurane
Steven C Nelson, Steven K Neeley, Eric D Melonakos, John D Bell, David D Busath BMC Biophysics 2012, 5:5 (24 March 2012)
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Editor’s summary
Steady-state anisotropy of two fluorescent probes at different depths in a lipid bilayer reveals a decrease in anisotropy with increasing isoflurane anesthetic concentration, reflecting changes in the lateral pressure profile of the membrane.
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25.
121 Accesses
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Detection and differentiation of bacterial spores in a mineral matrix by Fourier transform infrared spectroscopy (FTIR) and chemometrical data treatment
Andrea Brandes Ammann, Helmut Brandl BMC Biophysics 2011, 4:14 (14 July 2011)
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Editor’s summary
Fourier transform infrared spectroscopy (FTIR) combined with chemometrical data treatment enables differentiation of Bacillus spores down to the species level in pure culture and in the presence of clay mineral matrix such as bentonite.
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