Results 31 to 40 of about 437,835 (354)

The spindle checkpoint [PDF]

Journal of Cell Science, 2006
Every mitosis, replicated chromosomes must be accurately segregated into each daughter cell. Pairs of sister chromatids attach to the bipolar mitotic spindle during prometaphase, they are aligned at metaphase, then sisters separate and are pulled to opposite poles during anaphase.
Karen M, May, Kevin G, Hardwick
openaire   +2 more sources

Live cell imaging of meiosis in Arabidopsis thaliana

eLife, 2019
To follow the dynamics of meiosis in the model plant Arabidopsis, we have established a live cell imaging setup to observe male meiocytes. Our method is based on the concomitant visualization of microtubules (MTs) and a meiotic cohesin subunit that ...
Maria A Prusicki, Emma M Keizer, Rik P van Rosmalen, Shinichiro Komaki, Felix Seifert, Katja Müller, Erik Wijnker, Christian Fleck, Arp Schnittger   +8 more
doaj   +1 more source

HIM-10 is required for kinetochore structure and function on Caenorhabditis elegans holocentric chromosomes. [PDF]

, 2001
Macromolecular structures called kinetochores attach and move chromosomes within the spindle during chromosome segregation. Using electron microscopy, we identified a structure on the holocentric mitotic and meiotic chromosomes of Caenorhabditis elegans ...
Albertson, Albertson, Albertson, Amon, Buchwitz, Dernburg, Fire, Gonczy, Harlow, Heald, Hedgecock, Hodgkin, Howman, Kainta, Kimble, Lombillo, Maney, McDonald, McEwen, Mello, Moore, Nabetani, Newman, Nicklas, O'Connell, Rappleye, Roos, Savoian, Shah, Sharp, Sharp, Wigge, Yanagida, Yao   +33 more
core   +2 more sources

Spindle pole bodies [PDF]

Current Biology, 2013
What is a spindle pole body? The spindle pole body (SPB) or duplication plaque of fungi is the functional equivalent of the centrosome in higher eukaryotes. SPBs serve as microtubule organizing centres (MTOCs), sites where microtubules (MTs) are assembled from tubulin subunits. In contrast to centrosomes, SPBs do not contain centrioles.
Seybold, Christian, Schiebel, Elmar
openaire   +2 more sources

Regulation of Op18 during Spindle Assembly in Xenopus Egg Extracts [PDF]

, 2001
Oncoprotein 18 (Op18) is a microtubule-destabilizing protein that is negatively regulated by phosphorylation. To evaluate the role of the three Op18 phosphorylation sites in Xenopus (Ser 16, 25, and 39), we added wild-type Op18, a nonphosphorylatable ...
Andersen, Andersen, Arnaud, Bahler, Belmont, Brattsand, Carmena, Cassimeris, Charles, Curmi, Curmi, Desai, Desai, Descombes, Di Paolo, Felix, Gard, Gavet, Gigant, Glover, Golsteyn, Gruss, Hamanaka, Heald, Heald, Heald, Heald, Hirano, Horwitz, Howell, Howell, Hyman, Jourdain, Karaiskou, Kotani, Kumagai, Kumagai, Lane, Larsson, Lawler, Llamazares, Logarinho, Luo, Marklund, Maucuer, McKim, Moutinho-Santos, Murray, Nachury, Nigg, Ohkura, Qian, Qian, Sandaltzopoulos, Sawin, Schubart, Shirayama, Steinmetz, Sunkel, Taagepera, Tournebize, Vernos, Walczak, Wallon, Wianny, Wiese, Wray, Zhang   +67 more
core   +4 more sources

Modeling Dual Pathways for the Metazoan Spindle Assembly Checkpoint [PDF]

, 2006
Using computational modelling, we investigate mechanisms of signal transduction focusing on the spindle assembly checkpoint where a single unattached kinetochore is able to signal to prevent cell cycle progression.
Acquaviva, Castro, Clute, De Antoni, DeAntoni, Heinrich, Howell, Kraft, Lang, Luo, M. Howard, Mapelli, McEwen, Musacchio, Nasmyth, Nickell, Northrup, Pan, R. P. Sear, Rieder, Rieder, Rieder, Shah, Sironi, Sudakin, Tang, Tang, Vink, Wojcieszyn, Wollman   +29 more
core   +3 more sources

Afadin orients cell division to position the tubule lumen in developing renal tubules [PDF]

, 2017
In many types of tubules, continuity of the lumen is paramount to tubular function, yet how tubules generate lumen continuity in vivo is not known. We recently found the F-actin binding protein Afadin is required for lumen continuity in developing renal ...
Brakeman, Paul R., Bryant, David M., Gao, Lei, Hiremath, Chitkale, Long, Blake, Luby-Phelps, Katherine, Marciano, Denise K., Mostov, Keith E., Yang, Zhufeng, Zimmerman, Susan E.   +9 more
core   +2 more sources

Recent advances in plant kinetochore research

Frontiers in Cell and Developmental Biology
Faithful chromosome segregation is crucial for cell division in eukaryotes, facilitated by the kinetochore, a multi-subunit protein complex that connects chromosomes to the spindle microtubules.
Elena Kozgunova, Elena Kozgunova
doaj   +1 more source

NuMA recruits dynein activity to microtubule minus-ends at mitosis

eLife, 2017
To build the spindle at mitosis, motors exert spatially regulated forces on microtubules. We know that dynein pulls on mammalian spindle microtubule minus-ends, and this localized activity at ends is predicted to allow dynein to cluster microtubules into
Christina L Hueschen, Samuel J Kenny, Ke Xu, Sophie Dumont   +3 more
doaj   +1 more source

Mechanisms of chromosome biorientation and bipolar spindle assembly analyzed by computational modeling

eLife, 2020
The essential functions required for mitotic spindle assembly and chromosome biorientation and segregation are not fully understood, despite extensive study.
Christopher Edelmaier, Adam R Lamson, Zachary R Gergely, Saad Ansari, Robert Blackwell, J Richard McIntosh, Matthew A Glaser, Meredith D Betterton   +7 more
doaj   +1 more source