RGD Reference Report - Structure of TRPV1 channel revealed by electron cryomicroscopy. - Rat Genome Database

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Structure of TRPV1 channel revealed by electron cryomicroscopy.

Authors: Moiseenkova-Bell, Vera Y  Stanciu, Lia A  Serysheva, Irina I  Tobe, Ben J  Wensel, Theodore G 
Citation: Moiseenkova-Bell VY, etal., Proc Natl Acad Sci U S A. 2008 May 27;105(21):7451-5. doi: 10.1073/pnas.0711835105. Epub 2008 May 19.
RGD ID: 13432240
Pubmed: PMID:18490661   (View Abstract at PubMed)
PMCID: PMC2396679   (View Article at PubMed Central)
DOI: DOI:10.1073/pnas.0711835105   (Journal Full-text)

The transient receptor potential (TRP) family of ion channels participate in many signaling pathways. TRPV1 functions as a molecular integrator of noxious stimuli, including heat, low pH, and chemical ligands. Here, we report the 3D structure of full-length rat TRPV1 channel expressed in the yeast Saccharomyces cerevisiae and purified by immunoaffinity chromatography. We demonstrate that the recombinant purified TRPV1 channel retains its structural and functional integrity and is suitable for structural analysis. The 19-A structure of TRPV1 determined by using single-particle electron cryomicroscopy exhibits fourfold symmetry and comprises two distinct regions: a large open basket-like domain, likely corresponding to the cytoplasmic N- and C-terminal portions, and a more compact domain, corresponding to the transmembrane portion. The assignment of transmembrane and cytoplasmic regions was supported by fitting crystal structures of the structurally homologous Kv1.2 channel and isolated TRPV1 ankyrin repeats into the TRPV1 structure.

Gene Ontology Annotations    Click to see Annotation Detail View

Molecular Function
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
identical protein binding enablesIPIUniProtKB:O35433-113432240PMID:18490661IntAct 

Objects Annotated

Genes (Rattus norvegicus)
Trpv1  (transient receptor potential cation channel, subfamily V, member 1)


Additional Information