Results 81 to 90 of about 29,043 (290)

Stage‐Resolved Phosphoproteomic Landscape of Mouse Spermiogenesis Reveals Key Kinase Signaling in Sperm Morphogenesis

open access: yesAdvanced Science, EarlyView.
The quantitative proteomic and phosphoproteomic profiling reveals dynamic phosphorylation regulation of sperm morphogenesis. Kinase‐substrate phosphorylation network and phosphorylation module analysis, followed by in vivo knockdown and knockout analysis, identify TTBK2 and CSNK1G1 as key regulators of morphogenesis, including head, flagellar, and ...
Tianyu Zhu   +25 more
wiley   +1 more source

Enhanced Single‐Particle Upconversion Imaging via Energy Migration Boosting

open access: yesAdvanced Science, EarlyView.
A core‐shell‐shell Yb3⁺/Er3⁺ UCNP architecture is engineered to balance energy migration and back energy transfer, yielding more than a tenfold enhancement in single‐particle brightness. Leveraging these optimized probes, it achieves long‐term, high‐resolution single‐particle tracking in live neurons, uncovering coordinated transport mechanisms of ...
Yanxin Zhang   +7 more
wiley   +1 more source

Taking Down the Primary Cilium: Pathways for Disassembly in Differentiating Cells

open access: yesBioEssays, EarlyView.
Primary cilia are developmentally essential subcellular signaling compartments. However, many differentiated cells lack primary cilia, and cilia disassembly in these tissue contexts has been largely overlooked. We highlight several pathways for primary cilia loss and examine how changes in ciliation states could contribute to diverse pathologies ...
Carolyn M. Ott, Saikat Mukhopadhyay
wiley   +1 more source

When the Clock Is Ticking: The Role of Mitotic Duration in Cell Fate Determination

open access: yesBioEssays, EarlyView.
Recently, several studies identified mechanisms by which cells measure mitotic duration and how this influences cell fate, leading to normal cell cycle progression or G1 arrest. In light of drug‐resistant cancer cells that continue proliferating even after mitotic errors, understanding these mechanisms opens the door for new potential therapeutic ...
Cornelia Sala, Elmar Schiebel
wiley   +1 more source

Kinesin's second step [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
We have identified dimeric kinesin mutants that become stalled on the microtubule after one ATP turnover, unable to bind and hydrolyze ATP at their second site. We have used these mutants to determine the regulatory signal that allows ATP to bind to the forward head, such that processive movement can continue.
Susan P. Gilbert   +2 more
openaire   +3 more sources

Muscleblind-like proteins use modular domains to localize RNAs by riding kinesins and docking to membranes

open access: yesNature Communications, 2023
RNA binding proteins (RBPs) act as critical facilitators of spatially regulated gene expression. Muscleblind-like (MBNL) proteins, implicated in myotonic dystrophy and cancer, localize RNAs to myoblast membranes and neurites through unknown mechanisms ...
Ryan P. Hildebrandt   +10 more
doaj   +1 more source

Phosphorylation at the Helm: Kinase‐Mediated Regulation of Primary Cilia Assembly and Disassembly

open access: yesCytoskeleton, EarlyView.
ABSTRACT The primary cilium serves as an antenna of most vertebrate cells and is important for conveying cues from several signaling pathways into appropriate cellular responses during development and homeostasis. Cilia assembly and disassembly processes are thought to be strictly controlled; however, the precise nature of molecular events underlying ...
Andrea Lacigová, Lukáš Čajánek
wiley   +1 more source

Oncogenic role of kinesin proteins and targeting kinesin therapy

open access: yesCancer Science, 2013
The kinesin superfamily (KIF) is a group of proteins that share a highly conserved motor domain. Except for some members, many KIF proteins have adenosine triphosphatase activity and microtubule‐dependent plus‐end motion ability. Kinesins participate in several essential cellular functions, including mitosis, meiosis and the transport of macromolecules.
Hao Gong, Kun Huang, Xinran Liu
openaire   +3 more sources

Interaction Between Actin and Microtubules During Plant Development

open access: yesCytoskeleton, EarlyView.
ABSTRACT The dynamic interaction between actin filaments (AFs) and microtubules (MTs) plays a crucial role in regulating key developmental and physiological processes in plant cells, particularly in the formation of specialized cell types with distinct shapes and functions, such as pollen tubes, trichomes, and leaf epidermal cells.
Zining Wu   +3 more
wiley   +1 more source

PLK4: Master Regulator of Centriole Duplication and Its Therapeutic Potential

open access: yesCytoskeleton, EarlyView.
ABSTRACT Centrosomes catalyze the assembly of a microtubule‐based bipolar spindle, essential for the precise chromosome segregation during cell division. At the center of this process lies Polo‐Like Kinase 4 (PLK4), the master regulator that controls the duplication of the centriolar core to ensure the correct balance of two centrosomes per dividing ...
Muhammad Hamzah   +2 more
wiley   +1 more source

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