Results 31 to 40 of about 15,931 (218)

Mechanisms of Regulation in Intraflagellar Transport

Cells, 2022
Cilia are eukaryotic organelles essential for movement, signaling or sensing. Primary cilia act as antennae to sense a cell’s environment and are involved in a wide range of signaling pathways essential for development. Motile cilia drive cell locomotion
Wouter Mul, Aniruddha Mitra, Erwin J. G. Peterman   +2 more
doaj   +1 more source

Cryo-EM of dynein microtubule-binding domains shows how an axonemal dynein distorts the microtubule

eLife, 2019
Dyneins are motor proteins responsible for transport in the cytoplasm and the beating of axonemes in cilia and flagella. They bind and release microtubules via a compact microtubule-binding domain (MTBD) at the end of a coiled-coil stalk.
Samuel E Lacey, Shaoda He, Sjors HW Scheres, Andrew P Carter   +3 more
doaj   +1 more source

Cfap91-Dependent Stability of the RS2 and RS3 Base Proteins and Adjacent Inner Dynein Arms in Tetrahymena Cilia

Cells, 2022
Motile cilia and eukaryotic flagella are specific cell protrusions that are conserved from protists to humans. They are supported by a skeleton composed of uniquely organized microtubules—nine peripheral doublets and two central singlets (9 × 2 + 2 ...
Marta Bicka, Ewa Joachimiak, Paulina Urbanska, Anna Osinka, Anna Konopka, Ewa Bulska, Dorota Wloga   +6 more
doaj   +1 more source

Effects of antibodies against dynein and tubulin on the stiffness of flagellar axonemes [PDF]

, 1981
Antidynein antibodies, previously shown to inhibit flagellar oscillation and active sliding of axonemal microtubules, increase the bending resistance of axonemes measured under relaxing conditions, but not the bending resistance of axonemes measured ...
Asai, D. J., Brokaw, C. J., Ogawa, K., Okuno, M.   +3 more
core   +1 more source

A Flagellar A-Kinase Anchoring Protein with Two Amphipathic Helices Forms a Structural Scaffold in the Radial Spoke Complex [PDF]

, 2012
A-kinase anchoring proteins (AKAPs) contain an amphipathic helix (AH) that binds the dimerization and docking (D/D) domain, RIIa, in cAMP-dependent protein kinase A (PKA). Many AKAPs were discovered solely based on the AH–RIIa interaction in vitro.
Alto, Angelo, Banky, Barber, Brokaw, Burns-Hamuro, Cao, Carr, Carr, Carr, Chen, Cho, Diener, Diener, Fujita, Gaillard, Gaillard, Gold, Greengard, Gupta, Habermacher, Habermacher, Herberg, Hirsch, Howard, Hsu, Huang, Jarnaess, Jennifer M. Dienes, Jiang, Kammerer, Kinderman, Kindle, Klauck, Kohno, Li, Martin St. Maurice, Mastronarde, Mauban, Means, Mitchell, Morikis, Newell, Nicastro, Omoto, Patel, Patel-King, Pauling, Pigino, Pinfen Yang, Priyanka Sivadas, Roguev, Rual, Sarma, Satir, Scott, Silflow, South, Wang, Warner, Wei, Welch, William D. Meek, Williams, Wirschell, Witman, Xia, Xu, Yang, Yang, Yang, Yang   +71 more
core   +2 more sources

Axonemal radial spokes [PDF]

BioArchitecture, 2012
The radial spoke (RS) is a complex of at least 23 proteins that works as a mechanochemical transducer between the central-pair apparatus and the peripheral microtubule doublets in eukaryotic flagella and motile cilia. The RS contributes to the regulation of the activity of dynein motors, and thus to flagellar motility.
Gaia, Pigino, Takashi, Ishikawa
openaire   +2 more sources

Cytoplasmic factories for axonemal dynein assembly [PDF]

Journal of Cell Science, 2021
ABSTRACT Axonemal dyneins power the beating of motile cilia and flagella. These massive multimeric motor complexes are assembled in the cytoplasm, and subsequently trafficked to cilia and incorporated into the axonemal superstructure. Numerous cytoplasmic factors are required for the dynein assembly process, and, in mammals, defects lead
openaire   +2 more sources

Cryo electron tomography with volta phase plate reveals novel structural foundations of the 96-nm axonemal repeat in the pathogen Trypanosoma brucei

eLife, 2019
The 96-nm axonemal repeat includes dynein motors and accessory structures as the foundation for motility of eukaryotic flagella and cilia. However, high-resolution 3D axoneme structures are unavailable for organisms among the Excavates, which include ...
Simon Imhof, Jiayan Zhang, Hui Wang, Khanh Huy Bui, Hoangkim Nguyen, Ivo Atanasov, Wong H Hui, Shun Kai Yang, Z Hong Zhou, Kent L Hill   +9 more
doaj   +1 more source

Regulation of motor activity of ciliary outer-arm dynein by the light chain 1; Implications from the structure of the light chain bound to the microtubule-binding domain of the heavy chain

Biophysics and Physicobiology, 2023
Ciliary bending movements are powered by motor protein axonemal dyneins. They are largely classified into two groups, inner-arm dynein and outer-arm dynein. Outer-arm dynein, which is important for the elevation of ciliary beat frequency, has three heavy
Toshiki Yagi, Akiyuki Toda, Muneyoshi Ichikawa, Genji Kurisu   +3 more
doaj   +1 more source

Giant FAZ10 is required for flagellum attachment zone stabilization and furrow positioning in Trypanosoma brucei [PDF]

, 2017
The flagellum and flagellum attachment zone (FAZ) are important cytoskeletal structures in trypanosomatids, being required for motility, cell division and cell morphogenesis.
Baqui, Munira M.A., Da Fonseca, Carol K., Hammarton, Tansy C., Moreira, Bernardo P.   +3 more
core   +1 more source