The permeability of the cell-to-cell membrane channel and its regulation in mammalian cell junctions

In Vitro ◽  
1980 ◽  
Vol 16 (12) ◽  
pp. 1043-1048 ◽  
Author(s):  
Jean L. Flagg-Newton
2019 ◽  
Vol 15 (5) ◽  
pp. 2913-2924 ◽  
Author(s):  
Chi Hang Tse ◽  
Jeffrey Comer ◽  
Simon Kit Sang Chu ◽  
Yi Wang ◽  
Christophe Chipot

2009 ◽  
Vol 96 (3) ◽  
pp. 361a
Author(s):  
Muriel Golzio ◽  
Florin Ciobanu ◽  
Eugenia Kovacs ◽  
Justin Teissie
Keyword(s):  

1994 ◽  
Vol 169 (3) ◽  
pp. 538-546 ◽  
Author(s):  
M. S. Jacewicz ◽  
M. Mobassaleh ◽  
S. K. Gross ◽  
K. A. Balasubramanian ◽  
P. F. Daniel ◽  
...  

2020 ◽  
Author(s):  
C. Arbore ◽  
M Sergides ◽  
L. Gardini ◽  
F.S. Pavone ◽  
M. Capitanio

α-catenin is a crucial protein at cell junctions that provides connection between the actin cytoskeleton and the cell membrane. At adherens junctions (AJs), α-catenin forms heterodimers with β-catenin that are believed to resist force on F-actin. Outside AJs, α-catenin forms homodimers that directly connect the cell membrane to the actin cytoskeleton, but their mechanosensitive properties are inherently unknown. Surprisingly, by using ultra-fast laser tweezers we found that a single α-β-catenin heterodimer does not resist force but instead slips along F-actin in the direction of force. Conversely, the action of 5 to 10 α-β-catenin heterodimers together with unidirectional force applied to F-actin engaged a molecular switch in α-catenin, which unfolded and strongly bound F-actin as a cooperative catch bond. Similarly, an α-catenin homodimer formed an asymmetric catch bond with F-actin triggered by protein unfolding under force. Our data reveal that α-catenin clustering together with intracellular tension engage a fluid-to-solid phase transition at the membrane-cytoskeleton interface.


2012 ◽  
Vol 1 (4) ◽  
pp. 411-417 ◽  
Author(s):  
Masahiro Kawahara ◽  
Teruyuki Nagamune

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