6pw5

Cryo-EM Structure of Thermo-Sensitive TRP Channel TRP1 from the Alga Chlamydomonas reinhardtii in Nanodiscs

Loading... Status: waiting for Mol* initialization Structural highlights 6pw5 is a 4 chain structure with sequence from Chlamydomonas reinhardtii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.45Å Ligands: PCW, PIK, PIO Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function Q0Z852_CHLRE Publication Abstract from PubMed Algae produce the largest amount of oxygen on earth and are invaluable for human nutrition and biomedicine, as well as for the chemical industry, energy production and agriculture. The mechanisms by which algae can detect and respond to changes in their environments can rely on membrane receptors, including TRP ion channels. Here we present a 3.5-A resolution cryo-EM structure of the transient receptor potential (TRP) channel crTRP1 from the alga Chlamydomonas reinhardtii that opens in response to increased temperature and is positively regulated by the membrane lipid PIP2. The structure of crTRP1 significantly deviates from the structures of other TRP channels and has a unique 2-fold symmetrical rose-shape architecture with elbow domains and ankyrin repeat domains submerged and dipping into the membrane, respectively. Our study provides a structure of a TRP channel from a micro-organism and a structural framework for better understanding algae biology and TRP channel evolution. Structure of the thermo-sensitive TRP channel TRP1 from the alga Chlamydomonas reinhardtii.,McGoldrick LL, Singh AK, Demirkhanyan L, Lin TY, Casner RG, Zakharian E, Sobolevsky AI Nat Commun. 2019 Sep 13;10(1):4180. doi: 10.1038/s41467-019-12121-9. PMID:31519888 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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