Results 61 to 70 of about 9,203 (183)

Dynein-2 intermediate chains play crucial but distinct roles in primary cilia formation and function

open access: yeseLife, 2018
The dynein-2 microtubule motor is the retrograde motor for intraflagellar transport. Mutations in dynein-2 components cause skeletal ciliopathies, notably Jeune syndrome. Dynein-2 contains a heterodimer of two non-identical intermediate chains, WDR34 and
Laura Vuolo   +3 more
doaj   +1 more source

Mussel Spermatozoa Express a Specific Isoform of the Catalytic Subunit of cAMP‐Dependent Protein Kinase

open access: yesMolecular Reproduction and Development, Volume 93, Issue 8, August 2026.
ABSTRACT cAMP‐dependent protein kinase (PKA) plays a central role in regulating sperm motility in both invertebrates and mammals. The sea mussel Mytilus galloprovincialis provides a valuable model for investigating the molecular mechanisms underlying gamete activation in externally fertilizing organisms.
Izaskun Ibarguren   +4 more
wiley   +1 more source

Dynamic curvature regulation accounts for the symmetric and asymmetric beats of Chlamydomonas flagella

open access: yeseLife, 2016
Cilia and flagella are model systems for studying how mechanical forces control morphology. The periodic bending motion of cilia and flagella is thought to arise from mechanical feedback: dynein motors generate sliding forces that bend the flagellum, and
Pablo Sartori   +4 more
doaj   +1 more source

Genes Related to Sperm Motility Are Under Recent Ongoing Selection in Two Shorebird Species With a Polygynous Mating System and Frequent Multiple Paternity

open access: yesMolecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT The analysis of the genomic architecture of selection can be insightful for the understanding of sexual conflict and sexual selection acting in wild populations. In general, there will be a wide range of possible targets of selection in the reproductive system of sexually promiscuous species.
Jakob C. Mueller, Bart Kempenaers
wiley   +1 more source

PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility

open access: yesAdvanced Science, Volume 13, Issue 39, 13 July 2026.
PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao   +7 more
wiley   +1 more source

Primary cilia–extracellular vesicle crosstalk in Alzheimer's disease: Emerging mechanisms and biomarker potential

open access: yesAlzheimer's &Dementia, Volume 22, Issue 7, July 2026.
Abstract Alzheimer's disease (AD) is a neurodegenerative condition marked by cognitive decline and synaptic issues. Recent studies show primary cilia (PCs), sensory organelles present on the surface of most mammalian cells, act as a critical regulators of brain homeostasis and signaling.
Vishal Singh Guleria   +1 more
wiley   +1 more source

Ciliary Proteins: Filling the Gaps. Recent Advances in Deciphering the Protein Composition of Motile Ciliary Complexes

open access: yesCells, 2019
Cilia are highly evolutionarily conserved, microtubule-based cell protrusions present in eukaryotic organisms from protists to humans, with the exception of fungi and higher plants.
Anna Osinka   +5 more
doaj   +1 more source

Post‐LECA Origin and Diversification of an Axonemal Outer Arm Dynein Motor

open access: yesCytoskeleton, Volume 83, Issue 7, Page 457-465, July 2026.
ABSTRACT Dyneins were present in the last eukaryotic common ancestor (LECA) and play key roles in eukaryotic biology. Axonemal dyneins form the inner and outer arms that power ciliary beating, and it has long been recognized that outer arms in some organisms contain two different heavy chain motors, whereas those from other species contain a third unit
Stephen M. King
wiley   +1 more source

[Elongation of the axoneme and dynamics of intraflagellar transport].

open access: yesMedecine sciences : M/S, 2014
Cilia and flagella are essential organelles in most eukaryotes including human beings. In this review, we will discuss the mode of assembly of these complex organelles that depends on a dynamic process called intraflagellar transport or IFT. IFT delivers structural elements at the distal end of the cilium where assembly takes place, thereby allowing ...
Fort, Cécile, Bastin, Philippe
openaire   +2 more sources

The Microtubule-Depolymerizing Kinesin-13 Klp10A Is Enriched in the Transition Zone of the Ciliary Structures of Drosophila melanogaster

open access: yesFrontiers in Cell and Developmental Biology, 2019
The precursor of the flagellar axoneme is already present in the primary spermatocytes of Drosophila melanogaster. During spermatogenesis each primary spermatocyte shows a centriole pair that moves to the cell membrane and organizes an axoneme-based ...
Veronica Persico   +2 more
doaj   +1 more source

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