Rapid translocation and insertion of the epithelial Na+ channel in response to RhoA signaling
Activity of the epithelial Na+ channel (ENaC) is limiting for Na+ absorption across many
epithelia. Consequently, ENaC is a central effector impacting systemic blood volume and …
epithelia. Consequently, ENaC is a central effector impacting systemic blood volume and …
Rho small GTPases activate the epithelial Na+ channel
A Staruschenko, A Nichols, JL Medina… - Journal of Biological …, 2004 - ASBMB
Small G proteins in the Rho family are known to regulate diverse cellular processes,
including cytoskeletal organization and cell cycling, and more recently, ion channel activity …
including cytoskeletal organization and cell cycling, and more recently, ion channel activity …
Quantifying RhoA facilitated trafficking of the epithelial Na+ channel toward the plasma membrane with total internal reflection fluorescence-fluorescence recovery …
O Pochynyuk, A Staruschenko, V Bugaj… - Journal of Biological …, 2007 - ASBMB
The epithelial Na+ channel (ENaC) plays a central role in control of epithelial surface
hydration and vascular volume. Similar to other ion channels, ENaC activity is set, in part, by …
hydration and vascular volume. Similar to other ion channels, ENaC activity is set, in part, by …
Ras activates the epithelial Na+ channel through phosphoinositide 3-OH kinase signaling
A Staruschenko, P Patel, Q Tong, JL Medina… - Journal of Biological …, 2004 - ASBMB
Aldosterone induces expression and activation of the GTP-dependent signaling switch K-
Ras. This small monomeric G protein is both necessary and sufficient for activation of the …
Ras. This small monomeric G protein is both necessary and sufficient for activation of the …
Epithelial sodium channel regulated by differential composition of a signaling complex
R Soundararajan, D Melters, IC Shih… - Proceedings of the …, 2009 - National Acad Sciences
Hormonal control of transepithelial sodium (Na+) transport utilizes phosphatidylinositide 3′-
kinase (PI3K) and Raf–MAPK/ERK kinase (MEK)–ERK-dependent signaling pathways …
kinase (PI3K) and Raf–MAPK/ERK kinase (MEK)–ERK-dependent signaling pathways …
Function and Regulation of the Epithelial Na+ Channel ENaC
Abstract The Epithelial Na+ Channel, ENaC, comprised of 3 subunits (αβγ, or sometimes
δβγENaC), plays a critical role in regulating salt and fluid homeostasis in the body. It …
δβγENaC), plays a critical role in regulating salt and fluid homeostasis in the body. It …
Intracellular sodium regulates proteolytic activation of the epithelial sodium channel
KK Knight, DM Wentzlaff, PM Snyder - Journal of Biological Chemistry, 2008 - ASBMB
Na+ transport across epithelia is mediated in part by the epithelial Na+ channel ENaC.
Previous work indicates that Na+ is an important regulator of ENaC, providing a negative …
Previous work indicates that Na+ is an important regulator of ENaC, providing a negative …
Identification of a functional phosphatidylinositol 3, 4, 5-trisphosphate binding site in the epithelial Na+ channel
O Pochynyuk, A Staruschenko, Q Tong… - Journal of Biological …, 2005 - ASBMB
Membrane phospholipids, such as phosphatidylinositol 3, 4, 5-trisphosphate (PI (3, 4, 5) P
3), are signaling molecules that can directly modulate the activity of ion channels, including …
3), are signaling molecules that can directly modulate the activity of ion channels, including …
Binding and direct activation of the epithelial Na+ channel (ENaC) by phosphatidylinositides
O Pochynyuk, Q Tong, A Staruschenko… - The Journal of …, 2007 - Wiley Online Library
Several distinct types of ion channels bind and directly respond to phosphatidylinositides,
including phosphatidylinositol (3, 4, 5)‐trisphosphate (PI (3, 4, 5) P3) and …
including phosphatidylinositol (3, 4, 5)‐trisphosphate (PI (3, 4, 5) P3) and …
Fluorescence resonance energy transfer analysis of subunit stoichiometry of the epithelial Na+ channel
Activity of the epithelial Na+ channel (ENaC) is rate-limiting for Na+(re) absorption across
electrically tight epithelia. ENaC is a heteromeric channel comprised of three subunits, α, β …
electrically tight epithelia. ENaC is a heteromeric channel comprised of three subunits, α, β …