Results 71 to 80 of about 43,287 (283)

Microfilament‐Myosin II Regulates the Differentiation of Multinucleated Cysts into Oocytes and Influences Oocyte Developmental Potential in Mice

Advanced Science, EarlyView.
In this study, we provided new evidence identifying multinucleated cysts as precursors for oocyte differentiation. Within these cysts, organelles migrate and aggregate to form Balbiani body (B‐body) and establish early cellular polarity. Concurrently, excess nuclei are expelled, enabling cyst‐to‐oocyte differentiation. The microfilament‐myosin II plays
Rui Xu, Menghao Pan, Zhi Zheng, Yaju Tang, Yutong Yan, Sihai Lu, Sha Peng, Baohua Ma   +7 more
wiley   +1 more source

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

bioRxiv, 2019
Dyneins are motor proteins responsible for transport in the cytoplasm and the beating of the axoneme in cilia and flagella. They bind and release microtubules via a compact microtubule-binding domain (MTBD) at the end of a long coiled-coil stalk. Here we
S. Lacey, Shaoda He, S. Scheres, A. Carter   +3 more
semanticscholar   +1 more source

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

Advanced 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, Yan Zhu, Xinyi Jiang, Xiangzheng Zhang, Bing Wang, Yu Chen, Yichen Zhao, Yulian Wang, Qi Zhou, Zhongyan Han, Yaling Qi, Mengjiao Luo, Haixia Tu, Bingjie Hao, Mengmeng Gao, Jie Ren, Xin Zhou, Xingyu Zhang, Xu Chen, Haojie Li, Qian Huang, Chenghao Situ, Yueshuai Guo, Hui Zhu, Yan Li, Xuejiang Guo   +25 more
wiley   +1 more source

Enhanced Single‐Particle Upconversion Imaging via Energy Migration Boosting

Advanced 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, Rongrong Wen, Tianli Zhai, Wenrui Zhang, Fan Ding, Huan Ling, Yunxiang Zhang, Qian Liu   +7 more
wiley   +1 more source

Alu Overexpression Leads to an Increased Double‐stranded RNA Signature in Dermatomyositis

Arthritis &Rheumatology, Accepted Article.
Objective Dermatomyositis is an autoimmune condition characterized by a high interferon signature of unknown etiology. Because coding sequences constitute <1.2% of our genomes, there is a need to explore the role of the non‐coding genome in disease pathogenesis.
Rayan Najjar, Andrew Mammen, Tomas Mustelin   +2 more
wiley   +1 more source

Dyneins Motor on in Plants [PDF]

Traffic, 2002
A recent report based on analysis of the Arabidopsis genome suggested that angiosperms do not contain the dynein microtubule motor. However, examination of the whole genome shotgun sequence for rice (Oryza sativa) has revealed that four dynein heavy chains are present in this monocot, indicating that the apparent lack of these sequences in Arabidopsis
openaire   +3 more sources

TRiC Is a Structural Component of Mammalian Sperm Axonemes

Cytoskeleton, EarlyView.
ABSTRACT The TRiC chaperonin is responsible for folding ~5%–10% of the proteome in eukaryotic cells. Our recent cryo‐electron microscopy studies of axonemes from diverse mammalian cell types led to the surprising discovery that a fully assembled TRiC chaperonin is a structural component of mammalian sperm flagella, where it is tethered to the radial ...
Alan Brown, Miguel Ricardo Leung, Tzviya Zeev‐Ben‐Mordehai, Rui Zhang   +3 more
wiley   +1 more source

NudC regulated Lis1 stability is essential for the maintenance of dynamic microtubule ends in axon terminals

iScience, 2022
Summary: In the axon terminal, microtubule stability is decreased relative to the axon shaft. The dynamic microtubule plus ends found in the axon terminal have many functions, including serving as a docking site for the Cytoplasmic dynein motor. Here, we
Dane Kawano, Katherine Pinter, Madison Chlebowski, Ronald S. Petralia, Ya-Xian Wang, Alex V. Nechiporuk, Catherine M. Drerup   +6 more
doaj   +1 more source

CRACR2a is a calcium-activated dynein adaptor protein that regulates endocytic traffic

Journal of Cell Biology, 2019
Cytoplasmic dynein is a minus end–directed microtubule motor that transports intracellular cargoes. Transport is initiated by coiled-coil adaptors that (a) join dynein and its cofactor dynactin into a motile complex and (b) interact with a cargo-bound ...
Yuxiao Wang, Walter Huynh, Taylor D Skokan, Wen Lu, A. Weiss, R. Vale   +5 more
semanticscholar   +1 more source

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

Cytoskeleton, 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