Connexin43 and connexin50 channels exhibit different permeability to the second messenger inositol triphosphate

V Valiunas, TW White - Scientific Reports, 2020 - nature.com
Gap junction channels made of different connexins have distinct permeability to second
messengers, which could affect many cell processes, including lens epithelial cell division …

Lens connexin channels show differential permeability to signaling molecules

PR Brink, V Valiunas, TW White - International Journal of Molecular …, 2020 - mdpi.com
Gap junction channels mediate the direct intercellular passage of small ions as well as
larger solutes such as second messengers. A family of proteins called connexins make up …

[HTML][HTML] Lens connexin channels have differential permeability to the second messenger cAMP

V Valiunas, PR Brink, TW White - Investigative Ophthalmology & …, 2019 - arvojournals.org
Purpose: Gap junction channels exhibit connexin specific biophysical properties, including
the selective intercellular passage of larger solutes, such as second messengers. Here, we …

[HTML][HTML] Properties of gap junction channels formed by Cx46 alone and in combination with Cx50

MG Hopperstad, M Srinivas, DC Spray - Biophysical journal, 2000 - cell.com
Gap junctions formed of connexin46 (Cx46) and connexin50 (Cx50) in lens fiber cells are
crucial for maintaining lens transparency. We determined the functional properties of …

Gap Junctional Coupling in Lenses from α8 Connexin Knockout Mice

GJ Baldo, X Gong, FJ Martinez-Wittinghan… - The Journal of General …, 2001 - rupress.org
Lens fiber cell gap junctions contain α3 (Cx46) and α8 (Cx50) connexins. To examine the
roles of the two different connexins in lens physiology, we have genetically engineered mice …

[HTML][HTML] Role and posttranslational regulation of Cx46 hemichannels and gap junction channels in the eye lens

MA Retamal, GA Altenberg - Frontiers in Physiology, 2022 - frontiersin.org
Connexins are a family of proteins that can form two distinct types of channels:
hemichannels and gap junction channels. Hemichannels are composed of six connexin …

[HTML][HTML] Functional role of the carboxyl terminal domain of human connexin 50 in gap junctional channels

X Xu, VM Berthoud, EC Beyer… - The Journal of membrane …, 2002 - ncbi.nlm.nih.gov
Gap junction channels formed by connexin 50 (Cx50) are critical for maintenance of lens
transparency. Because the C-terminus of Cx50 can be cleaved post-translationally, we …

Role of intramolecular interaction in connexin50: Mediating the Ca2+-dependent binding of calmodulin to gap junction

X Zhang, Y Qi - Archives of biochemistry and biophysics, 2005 - Elsevier
Gap junction channels formed by connexin50 (Cx50) are critical for maintenance of eye lens
transparency. Cleavage of the carboxyl terminus (CT) of Cx50 to produce truncated Cx50 …

Dominant cataracts result from incongruous mixing of wild-type lens connexins

FJ Martinez-Wittinghan, C Sellitto, L Li, X Gong… - The Journal of cell …, 2003 - rupress.org
Gap junctions are composed of proteins called connexins (Cx) and facilitate both ionic and
biochemical modes of intercellular communication. In the lens, Cx46 and Cx50 provide the …

Changes in lens connexin expression lead to increased gap junctional voltage dependence and conductance

PJ Donaldson, Y Dong, M Roos… - … of Physiology-Cell …, 1995 - journals.physiology.org
The differentiation of mouse lens epithelial cells into fiber cells is a useful model for studying
the changes of the electrical properties of gap junction (cell-to-cell) channels that are …