Structures of a sperm-specific solute carrier gated by voltage and cAMP

V Kalienkova, MF Peter, J Rheinberger, C Paulino - Nature, 2023 - nature.com
The newly characterized sperm-specific Na+/H+ exchanger stands out by its unique tripartite
domain composition,. It unites a classical solute carrier unit with regulatory domains usually …

Chlorpromazine binding to the PAS domains uncovers the effect of ligand modulation on EAG channel activity

ZJ Wang, SM Soohoo, PB Tiwari, G Piszczek… - Journal of Biological …, 2020 - ASBMB
Ether-a-go-go (EAG) potassium selective channels are major regulators of neuronal
excitability and cancer progression. EAG channels contain a Per–Arnt–Sim (PAS) domain in …

A high affinity switch for cAMP in the HCN pacemaker channels

A Porro, A Saponaro, R Castelli, B Introini… - Nature …, 2024 - nature.com
Binding of cAMP to Hyperpolarization activated cyclic nucleotide gated (HCN) channels
facilitates pore opening. It is unclear why the isolated cyclic nucleotide binding domain …

All four subunits of HCN2 channels contribute to the activation gating in an additive but intricate manner

MR Sunkara, T Schwabe, G Ehrlich, J Kusch… - Journal of General …, 2018 - rupress.org
Hyperpolarization-activated cyclic nucleotide–modulated (HCN) channels are tetramers that
elicit electrical rhythmicity in specialized brain neurons and cardiomyocytes. The channels …

A Novel Flow Cytometry-Based Assay for the Identification of HCN4 CNBD Ligands

MN Wojciechowski, S Schreiber, J Jose - Pharmaceuticals, 2023 - mdpi.com
Hyperpolarization-activated and cyclic nucleotide-gated (HCN) channels are promising
therapeutic targets because of their association with the genesis of several diseases. The …

A photoaffinity labeling strategy identified EF1A1 as a binding protein of cyclic dinucleotide 2′ 3′-cGAMP

Y Hou, H Lu, J Li, Z Guan, J Zhang, W Zhang, C Yin… - Cell Chemical …, 2022 - cell.com
cyclic GMP-AMP (2′ 3′-cGAMP), generated by cyclic GMP-AMP synthase (cGAS) under
activation by cytosolic DNA, has a vital role in innate immune response via its receptor …

Protein redox state monitoring studies of thiol reactivity

YJ Suzuki, L Marcocci, T Shimomura, Y Tatenaka… - Antioxidants, 2019 - mdpi.com
Protein cysteine thiol status is a major determinant of oxidative stress and oxidant signaling.
The-SulfoBiotics-Protein Redox State Monitoring Kit provides a unique opportunity to …

Use of Surface Plasmon Resonance Technique for Studies of Inter-domain Interactions in Ion Channels

PB Tiwari, P Kamgar-Dayhoff, P Tiwari… - … Channels: Methods and …, 2024 - Springer
Ion channels are transmembrane proteins essential for cellular functions and are important
drug targets. Surface plasmon resonance (SPR) is a powerful technique for investigating …

Identification of undecylenic acid as EAG channel inhibitor using surface plasmon resonance-based screen of KCNH channels

ZJ Wang, PB Tiwari, A Üren, TI Brelidze - BMC Pharmacology and …, 2019 - Springer
Background KCNH family of potassium channels is responsible for diverse physiological
functions ranging from the regulation of neuronal excitability and cardiac contraction to the …

Mechanism and resistance for antimycobacterial activity of a fluoroquinophenoxazine compound

PK Garcia, T Annamalai, W Wang, RS Bell, D Le… - PLoS …, 2019 - journals.plos.org
We have previously reported the inhibition of bacterial topoisomerase I activity by a
fluoroquinophenoxazine compound (FP-11g) with a 6-bipiperidinyl lipophilic side chain that …