Results 131 to 140 of about 41,336 (313)

Effect of concentration quenching on fluorescence recovery after photobleaching measurements

Biophysical Journal, 1995
Standard analysis of fluorescence recovery after photobleaching (FRAP) data is valid only if the quantum yield of unphotobleached fluorophores is independent of concentration, yet close molecular packing in two-dimensional systems may lead to significant fluorescence concentration quenching.
Robeson, J.L., Tilton, R.D.
openaire   +2 more sources

A Self‐Organized Liquid Reaction Container for Cellular Memory

Advanced Science, EarlyView.
How cells restore epigenetic information lost during replication is not known. This work proposes a mechanism based on the formation of biomolecular condensates. These condensates are induced by the chromosome itself and serve as reaction vessels for reconstructing missing epigenetic markers.
Sukanta Mukherjee, Enrico Skoruppa, Holger Merlitz, Jens‐Uwe Sommer, Helmut Schiessel   +4 more
wiley   +1 more source

Disrupting the Formation of YAP Condensates Promotes the Activation of AMPKα to Inhibit the Progression of Primary Liver Cancer

Advanced Science, EarlyView.
This study systematically investigates the function and molecular mechanisms of YAP phase separation in multiple primary liver cancers. These findings provide novel insights into phase separation‐mediated primary liver cancer development and validate targeted disruption of this process as an effective therapeutic strategy for primary liver cancer ...
Shuang‐Zhou Peng, Jia‐Jia Liang, Yun‐Feng Zhan, Wei‐Xun Wu, Wan‐Li Xu, Xiao‐Kun Zhang, Li‐Jun Cai, Fu‐Quan Jiang   +7 more
wiley   +1 more source

Evidence for DNA-mediated nuclear compartmentalization distinct from phase separation. [PDF]

, 2019
RNA Polymerase II (Pol II) and transcription factors form concentrated hubs in cells via multivalent protein-protein interactions, often mediated by proteins with intrinsically disordered regions.
Darzacq, Xavier, Dugast-Darzacq, Claire, Hansen, Anders S, Hao, Yvonne, Heckert, Alec Basil, Marie-Nelly, Hervé, McSwiggen, David Trombley, Teves, Sheila S, Tjian, Robert, Umemoto, Kayla K   +9 more
core  

Anomalous transport in the crowded world of biological cells

, 2013
A ubiquitous observation in cell biology is that diffusion of macromolecules and organelles is anomalous, and a description simply based on the conventional diffusion equation with diffusion constants measured in dilute solution fails.
Franosch, Thomas, Höfling, Felix
core   +1 more source

Fluorescence recovery after photobleaching reveals high cycling dynamics of plasma membrane aquaporins in Arabidopsis roots under salt stress [PDF]

, 2011
Doan‐Trung Luu, Alexandre Martinière, Mathias Sorieul, John Runions, Christophe Maurel   +4 more
openalex   +1 more source

Astrocytic PCBP1 Suppresses Ferroptosis to Restore Glutamatergic Homeostasis and Mitigate Stress‐Induced Depression in Male Mice

Advanced Science, EarlyView.
This study demonstrates that polyC‐RNA‐binding protein 1 (PCBP1) in ventral hippocampal astrocytes modulates depressive‐like behaviors by regulating glutathione peroxidase 4‐mediated ferroptosis and synaptic glutamatergic transmission. PCBP1 overexpression intervention in the chronic unpredictable mild stress model rescues behavioral deficits ...
Jinyu Zhang, Binbin Zhao, Min Jia, Yan Zhao, Ye Lu, Wenyu Xi, Ziyu Zhu, Xiaojuan Gong, Qingyan Ma, Yuan Gao, Yijie Guo, Pan Li, Feng Zhu, Shuguang Wei, Xiancang Ma, Yunpeng Wang   +15 more
wiley   +1 more source

Rapid assembly dynamics of the Escherichia coli FtsZ-ring demonstrated by fluorescence recovery after photobleaching [PDF]

, 2002
Jesse Stricker, Paul S. Maddox, Edward D. Salmon, Harold Erickson   +3 more
openalex   +1 more source

Endocytic Control of Cell‐Autonomous and Non‐Cell‐Autonomous Functions of p53

Advanced Science, EarlyView.
NUMB Ex3‐containing isoforms localize to the plasma membrane, where they recruit p53 through SNX9 and direct it to multivesicular bodies and exosomes. Exported p53 is taken up by neighboring cells and activates nuclear programs, revealing an intercellular, exosome‐based pathway that might help establish a tumor‐suppressive microenvironment.
Roberta Cacciatore, Andrea Basile, Stefano Freddi, Irene Schiano Lomoriello, Carlo Ribelle Zucca, Giuseppe Ciossani, Luigi Scietti, Alessandro Cuomo, Simona Ronzoni, Simone Pelicci, Mario Faretta, Elena Zaccheroni, Giuliana Pelicci, Vittoria Matafora, Angela Bachi, Rosalind Helen Gunby, Salvatore Pece, Sara Sigismund, Letizia Lanzetti, Ivan Nicola Colaluca, Pier Paolo Di Fiore   +20 more
wiley   +1 more source

Dynamic multifactor hubs interact transiently with sites of active transcription in Drosophila embryos. [PDF]

, 2018
The regulation of transcription requires the coordination of numerous activities on DNA, yet how transcription factors mediate these activities remains poorly understood.
Darzacq, Xavier, Eisen, Michael B, Hannon, Colleen E, Harrison, Melissa M, Mir, Mustafa, Ortiz, Stephan A, Stadler, Michael R   +6 more
core   +1 more source