Results 31 to 40 of about 6,378 (182)

Cardiomyocyte-Specific Deletion of Orai1 Reveals Its Protective Role in Angiotensin-II-Induced Pathological Cardiac Remodeling

open access: yesCells, 2020
Pathological cardiac remodeling correlates with chronic neurohumoral stimulation and abnormal Ca2+ signaling in cardiomyocytes. Store-operated calcium entry (SOCE) has been described in adult and neonatal murine cardiomyocytes, and Orai1 proteins act as ...
Sebastian Segin   +7 more
doaj   +1 more source

Blockage of Orai1-Nucleolin interaction meditated calcium influx attenuates breast cancer cells growth

open access: yesOncogenesis, 2022
As an important second messenger, calcium (Ca2+) regulates a wide variety of physiological processes. Disturbance of intracellular calcium homeostasis implicated in the occurrence of multiple types of diseases.
Chunming Gu   +9 more
doaj   +1 more source

Cholesterol modulates Orai1 channel function [PDF]

open access: yesScience Signaling, 2016
Cholesterol suppresses the activity of a channel needed to refill intracellular calcium stores.
Isabella, Derler   +14 more
openaire   +2 more sources

The carboxy terminal coiled-coil modulates Orai1 internalization during meiosis

open access: yesScientific Reports, 2021
Regulation of Ca2+ signaling is critical for the progression of cell division, especially during meiosis to prepare the egg for fertilization. The primary Ca2+ influx pathway in oocytes is Store-Operated Ca2+ Entry (SOCE).
Rawad Hodeify   +9 more
doaj   +1 more source

STIM1 activation of Orai1

open access: yesCell Calcium, 2019
A primary calcium (Ca2+) entry pathway into non-excitable cells is through the store-operated Ca2+ release activated Ca2+ (CRAC) channel. Ca2+ entry into cells is responsible for the initiation of diverse signalling cascades that affect essential cellular processes like gene regulation, cell growth and death, secretion and gene transcription.
Victoria Lunz   +2 more
openaire   +2 more sources

STIM1–Orai1 interactions and Orai1 conformational changes revealed by live‐cell FRET microscopy [PDF]

open access: yesThe Journal of Physiology, 2008
Ca2+ entry through store‐operated Ca2+ release‐activated Ca2+ (CRAC) channels initiates key functions such as gene expression and exocytosis of inflammatory mediators. Activation of CRAC channels by store depletion involves the redistribution of the ER Ca2+ sensor, stromal interaction molecule 1 (STIM1), to peripheral sites where it co‐clusters with ...
Laura, Navarro-Borelly   +5 more
openaire   +2 more sources

Sequential Steps of CRAC Channel Activation

open access: yesCell Reports, 2017
Interaction between the endoplasmic reticulum protein STIM1 and the plasma membrane channel ORAI1 generates calcium signals that are central for diverse cellular functions. How STIM1 binds and activates ORAI1 remains poorly understood.
Raz Palty, Zhu Fu, Ehud Y. Isacoff
doaj   +1 more source

The STIM1–ORAI1 microdomain [PDF]

open access: yesCell Calcium, 2015
The regulatory protein STIM1 controls gating of the Ca(2+) channel ORAI1 by a direct protein-protein interaction. Because STIM1 is anchored in the ER membrane and ORAI1 is in the plasma membrane, the STIM-ORAI pathway can support Ca(2+) influx only where the two membranes come into close apposition, effectively demarcating a microdomain for Ca(2 ...
openaire   +2 more sources

Optical investigations reveal the effects of 2-aminoethyldiphenyl borate on STIM1 puncta formation [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2018
2-Aminoethyldiphenyl borate (2-APB) is the most commonly used pharmacological agent in the study of calcium release-activated channels (CRACs); however, its inhibitory mechanism to CRACs remains unclear.
Tao Yu   +4 more
doaj   +1 more source

Calcium Channel Protein ORAI1 Mediates TGF-β Induced Epithelial-to-Mesenchymal Transition in Colorectal Cancer Cells

open access: yesFrontiers in Oncology, 2021
Accumulating evidence suggested that calcium release-activated calcium modulator 1(ORAI1), a key calcium channel pore-forming protein-mediated store-operated Ca2+ entry (SOCE), is associated with human cancer. However, its role in colorectal cancer (CRC)
Qingjie Kang   +6 more
doaj   +1 more source

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