Results 101 to 110 of about 15,931 (218)

Cilia Distal Domain: Diversity in Evolutionarily Conserved Structures

open access: yesCells, 2019
Eukaryotic cilia are microtubule-based organelles that protrude from the cell surface to fulfill sensory and motility functions. Their basic structure consists of an axoneme templated by a centriole/basal body.
Helena Soares   +4 more
doaj   +1 more source

The Flagellar Motility of \u3cem\u3eChlamydomonas pf25\u3c/em\u3e Mutant Lacking an AKAP-binding Protein Is Overtly Sensitive to Medium Conditions [PDF]

open access: yes, 2006
Radial spokes are a conserved axonemal structural complex postulated to regulate the motility of 9 + 2 cilia and flagella via a network of phosphoenzymes and regulatory proteins.
Yang, Chun, Yang, Pinfen
core   +1 more source

Self-organized Beating and Swimming of Internally Driven Filaments

open access: yes, 1998
We study a simple two-dimensional model for motion of an elastic filament subject to internally generated stresses and show that wave-like propagating shapes which can propel the filament can be induced by a self-organized mechanism via a dynamic ...
B. Alberts   +26 more
core   +1 more source

Mouse SPAG6L, a Key Cytoskeleton Modulator Essential for Male Germ Cell Development, Is Not Required for Sertoli Cell Function

open access: yesCells
Mouse sperm-associated antigen 6-like (SPAG6L) evolved from SPAG6, the mammalian ortholog of Chlamydomonas PF16, which is localized in the central apparatus of the motile cilia and is essential for ciliary motility.
Tao Li   +6 more
doaj   +1 more source

Ultrastructures of spermatozoon tail in rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera, Curculionidae)

open access: yes浙江大学学报. 农业与生命科学版, 2008
Ultrastructures of spermatozoon tail in the rice water weevil, Lissorhoptrus oryzophilus, were observed via transmission electron microscopy at selected sperm developmental stages with the aim at clarifying spermiogenesis in this weevil.
HE Yan   +3 more
doaj   +1 more source

Structure and behaviour of the sperm terminal filament [PDF]

open access: yes, 1982
Light- and electron-microscopic observations of Ciona and Lytechinus spermatozoa show a thin terminal filament at the distal end. The terminal filament is 5-6 microns long and contains the two central microtubules and a variable number of A-tubule ...
Brokaw, C. J., Omoto, C. K.
core  

A CEP104-CSPP1 Complex Is Required for Formation of Primary Cilia Competent in Hedgehog Signaling

open access: yesCell Reports, 2019
Summary: CEP104 is an evolutionarily conserved centrosomal and ciliary tip protein. CEP104 loss-of-function mutations are reported in patients with Joubert syndrome, but their function in the etiology of ciliopathies is poorly understood.
Kari-Anne M. Frikstad   +15 more
doaj   +1 more source

Radial Spokes-A Snapshot of the Motility Regulation, Assembly, and Evolution of Cilia and Flagella [PDF]

open access: yes, 2016
Propulsive forces generated by cilia and flagella are used in events that are critical for the thriving of diverse eukaryotic organisms in their environments. Despite distinctive strokes and regulations, the majority of them adopt the 9+2 axoneme that is
Liu, Yi, Yang, Pinfen, Zhu, Xiaoyan
core   +1 more source

Alpha-tubulin tails regulate axoneme differentiation

open access: yesProceedings of the National Academy of Sciences
The tubulin tail is a key element for microtubule (MT) functionality, but the functional redundancy of tubulin genes complicates the genetic determination of their physiological functions. Here, we removed the C-terminal tail of five alpha- and four beta-tubulin genes in the C. elegans genome.
Ming Li   +6 more
openaire   +3 more sources

Microtubule sliding in swimming sperm flagella: direct and indirect measurements on sea urchin and tunicate spermatozoa [PDF]

open access: yes, 1991
Direct measurements of microtubule sliding in the flagella of actively swimming, demembranated, spermatozoa have been made using submicron diameter gold beads as markers on the exposed outer doublet microtubules.
Brokaw, Charles J.
core  

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