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- EMDB-7965: Lipid-bound full-length rbTRPV5 -

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Basic information

Entry
Database: EMDB / ID: EMD-7965
TitleLipid-bound full-length rbTRPV5
Map dataprimary map
Sample
  • Complex: lipid-bound TRPV5
    • Protein or peptide: Transient receptor potential cation channel subfamily V member 5
KeywordsTRPV5 / calcium channel / lipid-bound / full-length / TRANSPORT PROTEIN
Function / homology
Function and homology information


regulation of urine volume / calcium ion import across plasma membrane / calcium ion homeostasis / calcium ion transmembrane transport / calcium channel activity / calcium ion transport / protein homotetramerization / calmodulin binding / apical plasma membrane / identical protein binding ...regulation of urine volume / calcium ion import across plasma membrane / calcium ion homeostasis / calcium ion transmembrane transport / calcium channel activity / calcium ion transport / protein homotetramerization / calmodulin binding / apical plasma membrane / identical protein binding / metal ion binding / plasma membrane
Similarity search - Function
Transient receptor potential cation channel subfamily V member 5 / Transient receptor potential cation channel subfamily V member 5/6 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily ...Transient receptor potential cation channel subfamily V member 5 / Transient receptor potential cation channel subfamily V member 5/6 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein
Similarity search - Domain/homology
Transient receptor potential cation channel subfamily V member 5
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsHughes TET / Pumroy RA
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM103899 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)U24GM116792 United States
CitationJournal: Nat Commun / Year: 2018
Title: Structural insights on TRPV5 gating by endogenous modulators.
Authors: Taylor E T Hughes / Ruth A Pumroy / Aysenur Torun Yazici / Marina A Kasimova / Edwin C Fluck / Kevin W Huynh / Amrita Samanta / Sudheer K Molugu / Z Hong Zhou / Vincenzo Carnevale / Tibor ...Authors: Taylor E T Hughes / Ruth A Pumroy / Aysenur Torun Yazici / Marina A Kasimova / Edwin C Fluck / Kevin W Huynh / Amrita Samanta / Sudheer K Molugu / Z Hong Zhou / Vincenzo Carnevale / Tibor Rohacs / Vera Y Moiseenkova-Bell /
Abstract: TRPV5 is a transient receptor potential channel involved in calcium reabsorption. Here we investigate the interaction of two endogenous modulators with TRPV5. Both phosphatidylinositol 4,5- ...TRPV5 is a transient receptor potential channel involved in calcium reabsorption. Here we investigate the interaction of two endogenous modulators with TRPV5. Both phosphatidylinositol 4,5-bisphosphate (PI(4,5)P) and calmodulin (CaM) have been shown to directly bind to TRPV5 and activate or inactivate the channel, respectively. Using cryo-electron microscopy (cryo-EM), we determined TRPV5 structures in the presence of dioctanoyl PI(4,5)P and CaM. The PI(4,5)P structure reveals a binding site between the N-linker, S4-S5 linker and S6 helix of TRPV5. These interactions with PI(4,5)P induce conformational rearrangements in the lower gate, opening the channel. The CaM structure reveals two TRPV5 C-terminal peptides anchoring a single CaM molecule and that calcium inhibition is mediated through a cation-π interaction between Lys116 on the C-lobe of calcium-activated CaM and Trp583 at the intracellular gate of TRPV5. Overall, this investigation provides insight into the endogenous modulation of TRPV5, which has the potential to guide drug discovery.
History
DepositionJun 5, 2018-
Header (metadata) releaseOct 24, 2018-
Map releaseOct 24, 2018-
UpdateMar 13, 2024-
Current statusMar 13, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.021
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.021
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6dmr
  • Surface level: 0.021
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_7965.png

Downloads & links

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Map

FileDownload / File: emd_7965.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationprimary map
Voxel sizeX=Y=Z: 1.1 Å
Density
Contour LevelBy AUTHOR: 0.021 / Movie #1: 0.021
Minimum - Maximum-0.039404444 - 0.06933691
Average (Standard dev.)0.0011858849 (±0.004693731)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions192192192
Spacing192192192
CellA=B=C: 211.20001 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.11.11.1
M x/y/z192192192
origin x/y/z0.0000.0000.000
length x/y/z211.200211.200211.200
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS192192192
D min/max/mean-0.0390.0690.001

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Supplemental data

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Sample components

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Entire : lipid-bound TRPV5

EntireName: lipid-bound TRPV5
Components
  • Complex: lipid-bound TRPV5
    • Protein or peptide: Transient receptor potential cation channel subfamily V member 5

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Supramolecule #1: lipid-bound TRPV5

SupramoleculeName: lipid-bound TRPV5 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Oryctolagus cuniculus (rabbit)

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Macromolecule #1: Transient receptor potential cation channel subfamily V member 5

MacromoleculeName: Transient receptor potential cation channel subfamily V member 5
type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Oryctolagus cuniculus (rabbit)
Molecular weightTheoretical: 82.899656 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's yeast)
SequenceString: MGACPPKAKG PWAQLQKLLI SWPVGEQDWE QYRDRVNMLQ QERIRDSPLL QAAKENDLRL LKILLLNQSC DFQQRGAVGE TALHVAALY DNLEAATLLM EAAPELAKEP ALCEPFVGQT ALHIAVMNQN LNLVRALLAR GASVSARATG AAFRRSPHNL I YYGEHPLS ...String:
MGACPPKAKG PWAQLQKLLI SWPVGEQDWE QYRDRVNMLQ QERIRDSPLL QAAKENDLRL LKILLLNQSC DFQQRGAVGE TALHVAALY DNLEAATLLM EAAPELAKEP ALCEPFVGQT ALHIAVMNQN LNLVRALLAR GASVSARATG AAFRRSPHNL I YYGEHPLS FAACVGSEEI VRLLIEHGAD IRAQDSLGNT VLHILILQPN KTFACQMYNL LLSYDEHSDH LQSLELVPNH QG LTPFKLA GVEGNTVMFQ HLMQKRKHVQ WTCGPLTSTL YDLTEIDSWG EELSFLELVV SSKKREARQI LEQTPVKELV SFK WKKYGR PYFCVLASLY ILYMICFTTC CIYRPLKLRD DNRTDPRDIT ILQQKLLQEA YVTHQDNIRL VGELVTVTGA VIIL LLEIP DIFRVGASRY FGQTILGGPF HVIIITYASL VLLTMVMRLT NMNGEVVPLS FALVLGWCSV MYFARGFQML GPFTI MIQK MIFGDLMRFC WLMAVVILGF ASAFHITFQT EDPNNLGEFS DYPTALFSTF ELFLTIIDGP ANYSVDLPFM YCITYA AFA IIATLLMLNL FIAMMGDTHW RVAQERDELW RAQVVATTVM LERKMPRFLW PRSGICGYEY GLGDRWFLRV ENHHDQN PL RVLRYVEAFK CSDKEDGQEQ LSEKRPSTVE SGMLSRASVA FQTPSLSRTT SQSSNSHRGW EILRRNTLGH LNLGLDLG E GDGEEVYHF

UniProtKB: Transient receptor potential cation channel subfamily V member 5

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
GridDetails: unspecified
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 2.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

7058

Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Version: relion
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Version: relion
Final reconstructionApplied symmetry - Point group: C4 (4 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Version: Relion / Number images used: 29638
FSC plot (resolution estimation)

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