Lens aquaporins function as peroxiporins to facilitate membrane transport of hydrogen peroxide

K Varadaraj, SS Kumari - Biochemical and biophysical research …, 2020 - Elsevier
High levels of reactive oxygen species such as hydrogen peroxide (H 2 O 2) cause oxidative
stress in the lens and lead to cataractogenesis. The present investigation was undertaken to …

Aquaporins display a diversity in their substrates

R Sachdeva, P Priyadarshini, S Gupta - The Journal of membrane biology, 2023 - Springer
Aquaporins constitute a family of transmembrane proteins that function to transport water
and other small solutes across the cell membrane. Aquaporins family members are found in …

[PDF][PDF] Structure and function of aquaporins: the membrane water channel proteins

A Adeoye, A Odugbemi, T Ajewole - Biointerface Res Appl Chem, 2021 - researchgate.net
Aquaporins are integral membrane proteins which are also known as water channel
proteins. They aid quick transportation of water across membranes and are important in …

Development of a potent embryonic chick lens model for studying congenital cataracts in vivo

Z Li, S Gu, Y Quan, K Varadaraj, JX Jiang - Communications Biology, 2021 - nature.com
Congenital cataracts are associated with gene mutations, yet the underlying mechanism
remains largely unknown. Here we reported an embryonic chick lens model that closely …

Arvcf dependent adherens junction stability is required to prevent age-related cortical cataracts

JB Martin, K Herman, NS Houssin, W Rich… - Frontiers in Cell and …, 2022 - frontiersin.org
The etiology of age-related cortical cataracts is not well understood but is speculated to be
related to alterations in cell adhesion and/or the changing mechanical stresses occurring in …

[HTML][HTML] C-terminal end of Aquaporin 0 regulates lens gap junction channel function

K Varadaraj, J Gao, RT Mathias… - … Ophthalmology & Visual …, 2019 - tvst.arvojournals.org
Purpose: We reported previously that aquaporin 0 (AQP0) modulates lens fiber cell gap
junction (GJ) channel function. The present study was conducted to find out whether the C …

Deletion of beaded filament proteins or the C-terminal end of Aquaporin 0 causes analogous abnormal distortion aberrations in mouse lens

K Varadaraj, PG FitzGerald, SS Kumari - Experimental eye research, 2021 - Elsevier
Lens-specific beaded filament (BF) proteins CP49 and filensin interact with the C-terminus of
the water channel protein Aquaporin 0 (AQP0). Previously we have reported that a C …

Classification and gene structure of aquaporins

L Xu, X Guo, W Wang, C Li - Aquaporins, 2023 - Springer
Aquaporins (AQPs) are a family of membrane water channels that basically function as
regulators of intracellular and intercellular water flow. To date, 13 AQPs, distributed widely in …

[HTML][HTML] GPX1 knockout, not catalase knockout, causes accelerated abnormal optical aberrations and cataract in the aging lens

K Varadaraj, J Gao, RT Mathias, SS Kumari - Molecular Vision, 2022 - ncbi.nlm.nih.gov
Purpose Glutathione peroxidase 1 (GPX1) and catalase are expressed in the lens epithelial
cells and cortical fiber cells, where they detoxify H2O2 to reduce oxidative stress, which is a …

A predominant form of C-terminally end-cleaved AQP0 functions as an open water channel and an adhesion protein in AQP0ΔC/ΔC mouse lens

SS Kumari, K Varadaraj - Biochemical and biophysical research …, 2019 - Elsevier
The purpose of this investigation was to find out whether C-terminally end-cleaved
aquaporin 0 (AQP0), that is present predominantly in the lens mature fiber cells of the WT …