Results 61 to 70 of about 6,495 (196)

The nuclear lamina is a hub for the nuclear function of Jacob

Molecular Brain, 2021
Jacob is a synapto-nuclear messenger protein that couples NMDAR activity to CREB-dependent gene expression. In this study, we investigated the nuclear distribution of Jacob and report a prominent targeting to the nuclear envelope that requires NMDAR ...
Sebastian Samer, Rajeev Raman, Gregor Laube, Michael R. Kreutz, Anna Karpova   +4 more
doaj   +1 more source

The nucleolar RNA methyltransferase Misu (NSun2) is required for mitotic spindle stability [PDF]

, 2009
Myc-induced SUN domain–containing protein (Misu or NSun2) is a nucleolar RNA methyltransferase important for c-Myc–induced proliferation in skin, but the mechanisms by which Misu contributes to cell cycle progression are unknown.
Shobbir Hussain, Sandra Blanco Benavente, Elisabete Nascimento, Ilaria Dragoni, Agata Kurowski, Astrid Gillich, Peter Humphreys, Michaela Frye, Agris, Agris, Albee, Andersen, Andrews, Arnold, Blower, Blower, Boisvert, Brzezicha, Bujnicki, Clarke, Dephoure, Eliscovich, Frye, Frye, Gautier, Goshima, Greasley, Grosjean, Gruss, King, Liau, Ma, Nachury, Obara, Oeffinger, Raemaekers, Ribbeck, Rogakou, Sakita-Suto, Sato, Schmit, Schug, Taylor, Trieselmann, Tsai, Tscherne, Waikel, Watt, Wiese, Wu   +49 more
core   +1 more source

Localized RanGTP Accumulation Promotes Microtubule Nucleation at Kinetochores in Somatic Mammalian Cells [PDF]

Molecular Biology of the Cell, 2008
Centrosomes are the major sites for microtubule nucleation in mammalian cells, although both chromatin- and kinetochore-mediated microtubule nucleation have been observed during spindle assembly. As yet, it is still unclear whether these pathways are coregulated, and the molecular requirements for microtubule nucleation at kinetochore are not fully ...
Torosantucci L, De Luca M, Guarguaglini G, Lavia P, Degrassi F   +4 more
openaire   +4 more sources

Comparative genomics of proteins involved in RNA nucleocytoplasmic export

BMC Evolutionary Biology, 2011
Background The establishment of the nuclear membrane resulted in the physical separation of transcription and translation, and presented early eukaryotes with a formidable challenge: how to shuttle RNA from the nucleus to the locus of protein synthesis ...
Goldenberg Samuel, Vidal Newton M, Serpeloni Mariana, Ávila Andréa R, Hoffmann Federico G   +4 more
doaj   +1 more source

Conservation of complex nuclear localization signals utilizing classical and non-classical nuclear import pathways in LANA homologs of KSHV and RFHV. [PDF]

PLoS ONE, 2011
ORF73 latency-associated nuclear antigen (LANA) of the Kaposi's sarcoma-associated herpesvirus (KSHV) is targeted to the nucleus of infected cells where it binds to chromatin and mediates viral episome persistence, interacts with cellular proteins and ...
Lidia Cherezova, Kellie L Burnside, Timothy M Rose   +2 more
doaj   +1 more source

Measuring and modeling polymer gradients argues that spindle microtubules regulate their own nucleation

, 2017
Spindles are self-organized microtubule-based structures that segregate chromosomes during cell division. The mass of the spindle is controlled by the balance between microtubule turnover and nucleation. The mechanisms that control the spatial regulation
Foster, Peter J., Fürthauer, Sebastian, Kaye, Bryan, Needleman, Daniel J., Shelley, Michael J., Stiehl, Olivia   +5 more
core   +1 more source

Structural insight into TPX2-stimulated microtubule assembly [PDF]

, 2017
During mitosis and meiosis, microtubule (MT) assembly is locally upregulated by the chromatin-dependent Ran-GTP pathway. One of its key targets is the MT-associated spindle assembly factor TPX2.
Nogales, Eva, Roostalu, Johanna, Surrey, Thomas, Zhang, Rui   +3 more
core   +2 more sources

The Multifaceted Roles of RCC1 in Tumorigenesis

Frontiers in Molecular Biosciences, 2020
RCC1 (regulator of chromosome condensation 1) is the only known guanine nucleotide exchange factor of Ran, a nuclear Ras-like G protein. RCC1 combines with chromatin and Ran to establish a concentration gradient of RanGTP, thereby participating in a ...
Xuanqi Ren, Kai Jiang, Feng Zhang
doaj   +1 more source

BMI‐1 modulation and trafficking during M phase in diffuse intrinsic pontine glioma

FEBS Open Bio, EarlyView.
The schematic illustrates BMI‐1 phosphorylation during M phase, which triggers its translocation from the nucleus to the cytoplasm. In cycling cells, BMI‐1 functions within the PRC1 complex to mediate H2A K119 monoubiquitination. Following PTC596‐induced M phase arrest, phosphorylated BMI‐1 dissociates from PRC1 and is exported to the cytoplasm via its
Banlanjo Umaru, Deepak Kumar Mishra, Shiva Senthil Kumar, Hao‐Han Pang, Brendan Devine, Komal Khan, Rachid Drissi   +6 more
wiley   +1 more source

Supraphysiological nuclear export signals bind CRM1 independently of RanGTP and arrest at Nup358 [PDF]

The EMBO Journal, 2004
Leucine-rich nuclear export signals (NESs) mediate rapid nuclear export of proteins via interaction with CRM1. This interaction is stimulated by RanGTP but remains of a relatively low affinity. In order to identify strong signals, we screened a 15-mer random peptide library for CRM1 binding, both in the presence and absence of RanGTP.
Dieuwke, Engelsma, Rafael, Bernad, Jero, Calafat, Maarten, Fornerod   +3 more
openaire   +2 more sources