Store-operated calcium channels: from function to structure and back again

RS Lewis - Cold Spring Harbor perspectives in biology, 2020 - cshperspectives.cshlp.org
Store-operated calcium (Ca2+) entry (SOCE) occurs through a widely distributed family of
ion channels activated by the loss of Ca2+ from the endoplasmic reticulum (ER). The best …

[HTML][HTML] STIM1 activation of Orai1

V Lunz, C Romanin, I Frischauf - Cell calcium, 2019 - Elsevier
Abstract A primary calcium (Ca 2+) entry pathway into non-excitable cells is through the
store-operated Ca 2+ release activated Ca 2+(CRAC) channel. Ca 2+ entry into cells is …

An apical Phe-His pair defines the Orai1-coupling site and its occlusion within STIM1

Y Zhou, MR Jennette, G Ma, SA Kazzaz… - Nature …, 2023 - nature.com
Ca2+ signal-generation through inter-membrane junctional coupling between endoplasmic
reticulum (ER) STIM proteins and plasma membrane (PM) Orai channels, remains a vital but …

The Orai1 Store-Operated Calcium Channel Functions as a Hexamer*♦

X Cai, Y Zhou, RM Nwokonko, NA Loktionova… - Journal of Biological …, 2016 - ASBMB
Orai channels mediate store-operated Ca 2+ signals crucial in regulating transcription in
many cell types, and implicated in numerous immunological and inflammatory disorders …

Structures reveal opening of the store-operated calcium channel Orai

X Hou, SR Burstein, SB Long - Elife, 2018 - elifesciences.org
The store-operated calcium (Ca2+) channel Orai governs Ca2+ influx through the plasma
membrane of many non-excitable cells in metazoans. The channel opens in response to the …

Photocrosslinking-induced CRAC channel-like Orai1 activation independent of STIM1

L Maltan, S Weiß, H Najjar, M Leopold… - Nature …, 2023 - nature.com
Abstract Ca2+ release-activated Ca2+ (CRAC) channels, indispensable for the immune
system and various other human body functions, consist of two transmembrane (TM) …

Engineering of a bona fide light-operated calcium channel

L He, L Wang, H Zeng, P Tan, G Ma, S Zheng… - Nature …, 2021 - nature.com
The current optogenetic toolkit lacks a robust single-component Ca2+-selective ion channel
tailored for remote control of Ca2+ signaling in mammals. Existing tools are either derived …

Molecular basis of allosteric Orai1 channel activation by STIM1

PSW Yeung, M Yamashita… - The Journal of …, 2020 - Wiley Online Library
Store‐operated Ca2+ entry through Orai1 channels is a primary mechanism for Ca2+ entry
in many cells and mediates numerous cellular effector functions ranging from gene …

Molecular understanding of calcium permeation through the open Orai channel

X Liu, G Wu, Y Yu, X Chen, R Ji, J Lu, X Li, X Zhang… - PLoS …, 2019 - journals.plos.org
The Orai channel is characterized by voltage independence, low conductance, and high
Ca2+ selectivity and plays an important role in Ca2+ influx through the plasma membrane …

Cross-linking of Orai1 channels by STIM proteins

Y Zhou, RM Nwokonko, X Cai… - Proceedings of the …, 2018 - National Acad Sciences
The transmembrane docking of endoplasmic reticulum (ER) Ca2+-sensing STIM proteins
with plasma membrane (PM) Orai Ca2+ channels is a critical but poorly understood step in …