Results 71 to 80 of about 104,417 (205)

Transient Binding and Dissipation in Cross-Linked Actin Networks [PDF]

, 2008
In contrast with entangled actin solutions, transiently cross-linked actin networks can provide highly elastic properties while still allowing for local rearrangements in the microstructure-on biological relevant time scales.
Bausch, A.R., Claessens, M.M.A.E., Lieleg, O., Luan, Y.   +3 more
core   +4 more sources

Structural Determinants and Their Role in Cyanobacterial Morphogenesis

Life, 2020
Cells have to erect and sustain an organized and dynamically adaptable structure for an efficient mode of operation that allows drastic morphological changes during cell growth and cell division.
Benjamin L. Springstein, Dennis J. Nürnberg, Gregor L. Weiss, Martin Pilhofer, Karina Stucken   +4 more
doaj   +1 more source

Drosophila nuclear lamin precursor Dm0 is translated from either of two developmentally regulated mRNA species apparently encoded by a single gene. [PDF]

, 1988
A cDNA clone encoding a portion of Drosophila nuclear lamins Dm1 and Dm2 has been identified by screening a lambda-gt11 cDNA expression library using Drosophila lamin-specific monoclonal antibodies.
Bare, JW, Benton, BM, Drees, B, Fisher, PA, Gruenbaum, Y, Landesman, Y, Paddy, MR, Saumweber, H, Sedat, JW, Smith, DE   +9 more
core   +1 more source

Identification of calpain cleavage sites in the G1 cyclin-dependent kinase inhibitor p19(INK4d) [PDF]

, 2006
Calpains are a large family of Ca2+-dependent cysteine proteases that are ubiquitously distributed across most cell types and vertebrate species. Calpains play a role in cell differentiation, apoptosis, cytoskeletal remodeling, signal transduction and ...
Croall, Dayton, Fischer, Fuchs, Goll, Harris, Inomata, Kuboki, Lee, Molinari, Nicotera, Ruas, Sasaki, Smialowski   +13 more
core   +2 more sources

Elasticity of Semiflexible Biopolymer Networks

, 1995
We develop a model for gels and entangled solutions of semiflexible biopolymers such as F-actin. Such networks play a crucial structural role in the cytoskeleton of cells.
A.N. Semenov, C. Bustamante, C.F. Schmidt, D. Wachsstock, E.L. Elson, J. Haskell, J. Käs, J. Käs, J. Newman, M. Adam, M. Doi, M. Fixman, P.A. Janmey, P.A. Janmey, P.A. Janmey, P.A. Janmey, P.A. Janmey, P.A. Janmey, P.G. de Gennes, R. Furukawa, R.H. Colby, S. Kaufmann, T. Stossel   +22 more
core   +2 more sources

Activation of Shigella flexneri type 3 secretion requires a host-induced conformational change to the translocon pore.

PLoS Pathogens, 2019
Type 3 secretion systems (T3SSs) are conserved bacterial nanomachines that inject virulence proteins (effectors) into eukaryotic cells during infection.
Brian C Russo, Jeffrey K Duncan, Alexandra L Wiscovitch, Austin C Hachey, Marcia B Goldberg   +4 more
doaj   +1 more source

Dynamic Light Scattering from Semidilute Actin Solutions: A Study of Hydrodynamic Screening, Filament Bending Stiffness and the Effect of Tropomyosin/Troponin-Binding

, 1995
Quasi-elastic light scattering (QELS) is applied to investigate the effect of the tropomyosin/troponin complex (Tm/Tn) on the stiffness of actin filaments. The importance of hydrodynamic screening in semidilute solutions is demonstrated.
Baermann, M., Frey, E., Goetter, R., Kroy, K., Sackmann, E.   +4 more
core   +1 more source

Cooperativity and Frustration in Protein-Mediated Parallel Actin Bundles

, 2009
We examine the mechanism of bundling of cytoskeletal actin filaments by two representative bundling proteins, fascin and espin. Small-angle X-ray studies show that increased binding from linkers drives a systematic \textit{overtwist} of actin filaments ...
B. Alberts, Gerard C. L. Wong, Gregory M. Grason, Homin Shin, James R. Bartles, Kirstin R. Purdy Drew, P. A. Janmey   +6 more
core   +1 more source

Transport by molecular motors in the presence of static defects [PDF]

, 2009
The transport by molecular motors along cytoskeletal filaments is studied theoretically in the presence of static defects. The movements of single motors are described as biased random walks along the filament as well as binding to and unbinding from the
A. Ebneth, A. Parmeggiani, A. Seitz, A. Seitz, A.B. Kolomeisky, B. Schmittmann, B.M. Paschal, C. Leduc, E.-M. Mandelkow, G. Tripathy, G.A. Klein, G.M. Schütz, H. Hagiwara, H. Hess, I.M. Crevel, J. Beeg, J. Howard, J. Krug, J.-C. Larcher, J.C. Bulisnki, K. Nishinari, K. Tokuraku, L.A. Lopez, L.J. Davis, L.S.B. Goldstein, M. Vershinin, M. Vershinin, M.G.L. Heuvel Van den, M.J.I. Müller, M.J.I. Müller, M.R. Evans, N. Mirin, N.A. Reed, P. Pierobon, R. Dixit, R. Lipowsky, R. Lipowsky, R. Sato-Harada, Reinhard Lipowsky, S. Heins, S. Klumpp, S. Klumpp, S. Klumpp, S. Klumpp, S. Klumpp, S. Klumpp, S. Klumpp, S. Konzack, S. Lakämper, S.A. Janowsky, Stefan Klumpp, T.M. Nieuwenhuizen, Yan Chai   +52 more
core   +3 more sources

Skin Appendage Proteins of Tetrapods: Building Blocks of Claws, Feathers, Hair and Other Cornified Epithelial Structures

Animals
Reptiles, birds, mammals and amphibians, together forming the clade tetrapods, have a large diversity of cornified skin appendages, such as scales, feathers, hair and claws.
Karin Brigit Holthaus, Julia Steinbinder, Attila Placido Sachslehner, Leopold Eckhart   +3 more
doaj   +1 more source