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Proteome of the central apparatus of a ciliary axoneme [PDF]
Journal of Cell Biology, 2019 Nearly all motile cilia have a “9+2” axoneme containing a central apparatus (CA), consisting of two central microtubules with projections, that is essential for motility. To date, only 22 proteins are known to be CA components. To identify new candidate CA proteins, we used mass spectrometry to compare axonemes of wild-type Chlamydomonas and a CA-less ...
Lei Zhao, Yuqing Hou, George Witman
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Axonemal motility in Chlamydomonas
2015Motile cilia and flagella rapidly propagate bending waves and produce water flow over the cell surface. Their function is important for the physiology and development of various organisms including humans. The movement is based on the sliding between outer doublet microtubules driven by axonemal dyneins, and is regulated by various axonemal components ...
Ken-Ichi Wakabayashi, Ritsu Kamiya
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Pathology of the cytoskeleton of the human sperm flagellum: axonemal and peri‐axonemal anomalies
Biology of the Cell, 1984A quantitative ultrastructural study was performed on 56 ejaculates showing anomalies of the sperm axonemal complex. The anomalies comprised either the absence of one, or more often several, axonemal structures, or defective elongation of the doublets. Several characteristics relating to the extent and superimposition of the various anomalies could be ...
D, Escalier, G, David
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Unusual Axonemes of Hexapod Spermatozoa
2006Hexapod spermatozoa exhibit a great variation in their axoneme structure. The 9+2 pattern organization is present in a few basal taxa and in some derived groups. In most hexapods, a crown of nine accessory microtubules surrounds the 9+2 array, giving rise to the so-called 9+9+2 pattern.
Dallai, R. +2 more
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Axonemal dynein from Tetrahymena
Journal of Cell Science, 1991ABSTRACT Axonemal dynein from Tetrahymena cilia can be separated on a sucrose gradient into two fractions, at least one of which appears to be polymorphic. We have been using immuno-electron microscopy in order to try and locate the different types of dynein molecules within the axonemal structure.
E M, Crossley, S C, Hyman, C, Wells
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Posttranslational Modifications of Axonemal Tubulin
Journal of Protein Chemistry, 1997Axonemal tubulin exhibits a high degree of heterogeneity mostly due to several posttranslational modifications (PTM). The aim of this work was to chemically characterize the different PTM occurring in the C-terminal tail of axonemal tubulin purified from sea urchin, Paracentrotus lividus, spermatozoa.
J, Mary +4 more
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Physical model of axonemal splitting
Cell Motility, 1994AbstractA physical model developed to explain microtubule sliding patterns in the trypsintreated ciliary axoneme has been extended to investigate the generation of bending moments by microtubules sliding in an axoneme in which the dublets are anchored at one end.
M E, Holwill, P, Satir
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Cell Motility, 1994
AbstractIn an earlier study we reported the isolation of a cytoplasmic dynein from the cytosol of Paramecium multimicronucleatum. In this study we report the isolation and characterization of two cytosolic axonemal dyneins (22S and 12S) as well as a 19S cytoplasmic dynein from the cytosol of whole or deciliated cells using preformed bovine brain ...
A K, Fok +4 more
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AbstractIn an earlier study we reported the isolation of a cytoplasmic dynein from the cytosol of Paramecium multimicronucleatum. In this study we report the isolation and characterization of two cytosolic axonemal dyneins (22S and 12S) as well as a 19S cytoplasmic dynein from the cytosol of whole or deciliated cells using preformed bovine brain ...
A K, Fok +4 more
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Biophysical Measurements on Axonemal Dyneins
2009In recent decades, the development of technologies such as optical trap nanometry and advanced fluorescence microscopy have provided tools for studying the dynamics of single protein molecules in vitro and in vivo with nanometer precision over timescales from milliseconds to seconds.
Hiroaki, Kojima +3 more
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1999
Abstract Axonemal dynein forms a double row of projections, the outer and inner arms, that are attached to the A tubule of each axonemal doublet and extend toward the B tubule of the adjacent doublet.10 The outer dynein arms are distributed along the length of the A tubule, with a constant spacing of 24 nm.
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Abstract Axonemal dynein forms a double row of projections, the outer and inner arms, that are attached to the A tubule of each axonemal doublet and extend toward the B tubule of the adjacent doublet.10 The outer dynein arms are distributed along the length of the A tubule, with a constant spacing of 24 nm.
openaire +1 more source