Results 61 to 70 of about 2,373,749 (268)

Prophase-Specific Perinuclear Actin Coordinates Centrosome Separation and Positioning to Ensure Accurate Chromosome Segregation

Cell Reports, 2020
Summary: Centrosome separation in late G2/ early prophase requires precise spatial coordination that is determined by a balance of forces promoting and antagonizing separation. The major effector of centrosome separation is the kinesin Eg5.
Tom Stiff, Fabio R. Echegaray-Iturra, Harry J. Pink, Alex Herbert, Constantino Carlos Reyes-Aldasoro, Helfrid Hochegger   +5 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Osmotic disruption of chromatin induces Topoisomerase 2 activity at sites of transcriptional stress

Nature Communications
Transcription generates superhelical stress in DNA that poses problems for genome stability, but determining when and where such stress arises within chromosomes is challenging. Here, using G1-arrested S.
William H. Gittens, Rachal M. Allison, Ellie M. Wright, George G. B. Brown, Matthew J. Neale   +4 more
doaj   +1 more source

Specialized interfaces of Smc5/6 control hinge stability and DNA association

Nature Communications, 2017
Structural Maintenance of Chromosomes (SMC) complexes maintain genome integrity by regulating the segregation of chromosomes. Here, Altet al. describe the structure of the heterodimeric Smc5/6-hinge from fission yeast and define functional features ...
Aaron Alt, Hung Q. Dang, Owen S. Wells, Luis M. Polo, Matt A. Smith, Grant A. McGregor, Thomas Welte, Alan R. Lehmann, Laurence H. Pearl, Johanne M. Murray, Antony W. Oliver   +10 more
doaj   +1 more source

The Stability and the Stabilization of Testicular Hyaluronidase

Experimental Biology and Medicine, 1949
Summary1. Testicular hyaluronidase in bulk assaying 150 TRU per mg is stable at room temperature for more than one year.2. Hyaluronidase in concentrated aqueous solution is stable for several months at 10°.C Dilute solutions of the enzyme are less stable.3.
D. R. McCullagh, J. W. Cassidy, F. Valentine, S. Tolksdorf   +3 more
openaire   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Structural basis of Fanconi anemia pathway activation by FANCM

The EMBO Journal
FANCM is crucial in genome maintenance, functioning in the Fanconi anemia (FA) pathway, alternative lengthening of telomeres (ALT), and replication fork protection.
Rohan Bythell-Douglas, Sylvie van Twest, Lara Abbouche, Elyse Dunn, Rachel J Coulthard, David C Briggs, Vincent Murphy, Xinxin Zhang, Winnie Tan, Sarah S Henrikus, Dongming Qian, Yin Wu, Jana Wolf, Laurent Rigoreau, Shabih Shakeel, Kathryn L Chapman, Neil Q McDonald, Andrew J Deans   +17 more
doaj   +1 more source

Stability scores: measuring coalitional stability

International Joint Conference on Autonomous Agents and Multiagent Systems, 2012
We introduce a measure for the level of stability against coalitional deviations, called stability scores, which generalizes widely used notions of stability in non-cooperative games. We use the proposed measure to compare various Nash equilibria in congestion games, and to quantify the effect of game parameters on coalitional stability.
Michal Feldman, Reshef Meir, Moshe Tennenholtz   +2 more
openaire   +3 more sources