Results 71 to 80 of about 3,524,174 (306)

Genome-wide analysis of gene expression profiles associated with cell cycle transitions in growing organs of Arabidopsis [PDF]

, 2005
Organ growth results from the progression of component cells through subsequent phases of proliferation and expansion before reaching maturity. We combined kinematic analysis, flowcytometry, and microarray analysis to characterize cell cycle regulation ...
Beemster, Gerrit, De Veylder, Lieven, Vercruysse, Steven, West, Gerrit, Rombaut, Debbie, Van Hummelen, Paul, Galichet, Arnaud, Gruissem, Wilhelm, Inzé, Dirk, Vuylsteke, Marnik   +9 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Root-knot nematode feeding site development is impaired by cyclin-dependent kinase inhibitors [PDF]

, 2012
Plant-parasitic nematodes of the genera Meloidogyne trigger the formation of giant cells that undergo recurring acytokinetic mitosis and endocycles. Expression analyses of key cell cycle genes showed their early induction in the nematode feeding site ...
Abad, Pierre, Engler, Gilbert, Engler, Janice, Mota, Manuel, Veylder, Lieven, Vieira, Paulo   +5 more
core  

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Nrm1 is a bistable switch connecting cell cycle progression to transcriptional control

EMBO Reports
Entry into the cell cycle requires activation of G1 cyclin-dependent kinases (CDKs) and the G1/S transcriptional program. In fission yeast, the MBF complex is the main transcription factor driving early cell-cycle gene expression.
Guillem Murciano-Julià, Montserrat Vega, Esther Pazo, Àlex Pascual-Serra, Isabel Alves-Rodrigues, Oriol Bagudanch, Roger Anglada, Núria Bonet, Rosa Aligué, Sergio Moreno, Baldo Oliva, Elena Hidalgo, José Ayté   +12 more
doaj   +1 more source

Cell Cycle: Deconstructing Tension [PDF]

Current Biology, 2010
Prior to anaphase, sister chromatids must be attached to microtubules and under tension, a condition that satisfies the spindle checkpoint. Removal of sister chromatid cohesion is predicted to cause a fall in tension. Two studies shed light on how cells avoid re-activation of the spindle checkpoint when cohesion is lost.
openaire   +3 more sources

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

Stage-specific MCM protein expression in Trypanosoma cruzi: insights into metacyclogenesis and G1 arrested epimastigotes

Frontiers in Cellular and Infection Microbiology
Trypanosoma cruzi is a protozoan parasite that is the etiological agent of Chagas disease, which is endemic to Latin America with reported cases in non-endemic regions such as Europe, Asia, and Oceania due to migration. During its lifecycle, T.
Bruno Alves Santarossa, Évelin Mariani, Artur da Paixão Corrêa, Fernanda C. Costa, Martin C. Taylor, John M. Kelly, Maria Carolina Elias, Simone Guedes Calderano   +7 more
doaj   +1 more source

Single-cell protein dynamics reproduce universal fluctuations in cell populations

, 2015
Protein variability in single cells has been studied extensively in populations, but little is known about temporal protein fluctuations in a single cell over extended times.
Braun, Erez, Brenner, Naama, Rotella, James, Salman, Hanna, Susman, Lee, Yoney, Anna   +5 more
core   +1 more source

The Arabidopsis thaliana checkpoint kinase WEE1 protects against premature vascular differentiation during replication stress [PDF]

, 2011
A sessile lifestyle forces plants to respond promptly to factors that affect their genomic integrity. Therefore, plants have developed checkpoint mechanisms to arrest cell cycle progression upon the occurrence of DNA stress, allowing the DNA to be ...
Cools, Toon, Iantcheva, Anelia, Weimer, Annika K, Boens, Shannah, Takahashi, Naoki, Maes, Sara, Van Den Daele, Hilde, Van Isterdael, Gert, Schnittger, Arp, De Veylder, Lieven   +9 more
core   +2 more sources