positive regulation of cardiac muscle hypertrophy in response to stress / Role of second messengers in netrin-1 signaling / store-operated calcium channel activity / Elevation of cytosolic Ca2+ levels / Effects of PIP2 hydrolysis / cation channel complex / inositol 1,4,5 trisphosphate binding / calcium-activated cation channel activity / TRP channels / positive regulation of calcium ion transport into cytosol ...positive regulation of cardiac muscle hypertrophy in response to stress / Role of second messengers in netrin-1 signaling / store-operated calcium channel activity / Elevation of cytosolic Ca2+ levels / Effects of PIP2 hydrolysis / cation channel complex / inositol 1,4,5 trisphosphate binding / calcium-activated cation channel activity / TRP channels / positive regulation of calcium ion transport into cytosol / response to ATP / phototransduction / single fertilization / MECP2 regulates neuronal receptors and channels / regulation of cytosolic calcium ion concentration / calcium ion transmembrane transport / calcium channel activity / response to calcium ion / calcium ion transport / metal ion binding / plasma membrane Similarity search - Function
Transient receptor potential channel, canonical 3 / Transient receptor ion channel II / Transient receptor ion channel domain / Transient receptor ion channel II / Transient receptor potential channel, canonical / Ankyrin repeats (3 copies) / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily ...Transient receptor potential channel, canonical 3 / Transient receptor ion channel II / Transient receptor ion channel domain / Transient receptor ion channel II / Transient receptor potential channel, canonical / Ankyrin repeats (3 copies) / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein Similarity search - Domain/homology
Journal: Elife / Year: 2018 Title: Structure of the human lipid-gated cation channel TRPC3. Authors: Chen Fan / Wooyoung Choi / Weinan Sun / Juan Du / Wei Lü / Abstract: The TRPC channels are crucially involved in store-operated calcium entry and calcium homeostasis, and they are implicated in human diseases such as neurodegenerative disease, cardiac hypertrophy, and ...The TRPC channels are crucially involved in store-operated calcium entry and calcium homeostasis, and they are implicated in human diseases such as neurodegenerative disease, cardiac hypertrophy, and spinocerebellar ataxia. We present a structure of the full-length human TRPC3, a lipid-gated TRPC member, in a lipid-occupied, closed state at 3.3 Angstrom. TRPC3 has four elbow-like membrane reentrant helices prior to the first transmembrane helix. The TRP helix is perpendicular to, and thus disengaged from, the pore-lining S6, suggesting a different gating mechanism from other TRP subfamily channels. The third transmembrane helix S3 is remarkably long, shaping a unique transmembrane domain, and constituting an extracellular domain that may serve as a sensor of external stimuli. We identified two lipid-binding sites, one being sandwiched between the pre-S1 elbow and the S4-S5 linker, and the other being close to the ion-conducting pore, where the conserved LWF motif of the TRPC family is located.
History
Deposition
Mar 25, 2018
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Header (metadata) release
May 9, 2018
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Map release
May 16, 2018
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Update
Jul 29, 2020
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Current status
Jul 29, 2020
Processing site: RCSB / Status: Released
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Structure visualization
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Surface view with section colored by density value
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