+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-7967 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Calmodulin-bound full-length rbTRPV5 | |||||||||
Map data | Calmodulin-bound rbTRPV5 | |||||||||
Sample |
| |||||||||
Keywords | calmodulin / TRPV5 / full-length / calcium channel / TRANSPORT PROTEIN | |||||||||
Function / homology | Function and homology information establishment of protein localization to mitochondrial membrane / type 3 metabotropic glutamate receptor binding / regulation of urine volume / establishment of protein localization to membrane / presynaptic cytosol / regulation of synaptic vesicle endocytosis / regulation of synaptic vesicle exocytosis / organelle localization by membrane tethering / postsynaptic cytosol / mitochondrion-endoplasmic reticulum membrane tethering ...establishment of protein localization to mitochondrial membrane / type 3 metabotropic glutamate receptor binding / regulation of urine volume / establishment of protein localization to membrane / presynaptic cytosol / regulation of synaptic vesicle endocytosis / regulation of synaptic vesicle exocytosis / organelle localization by membrane tethering / postsynaptic cytosol / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / regulation of cardiac muscle cell action potential / nitric-oxide synthase binding / calcium ion import across plasma membrane / negative regulation of ryanodine-sensitive calcium-release channel activity / protein phosphatase activator activity / adenylate cyclase binding / catalytic complex / detection of calcium ion / regulation of cardiac muscle contraction / calcium channel regulator activity / regulation of ryanodine-sensitive calcium-release channel activity / cellular response to interferon-beta / calcium channel inhibitor activity / phosphatidylinositol 3-kinase binding / calcium ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / : / titin binding / voltage-gated potassium channel complex / sperm midpiece / calcium channel complex / response to amphetamine / adenylate cyclase activator activity / nitric-oxide synthase regulator activity / regulation of heart rate / sarcomere / protein serine/threonine kinase activator activity / regulation of cytokinesis / spindle microtubule / calcium ion transmembrane transport / positive regulation of receptor signaling pathway via JAK-STAT / response to calcium ion / calcium channel activity / Schaffer collateral - CA1 synapse / cellular response to type II interferon / G2/M transition of mitotic cell cycle / spindle pole / calcium-dependent protein binding / calcium ion transport / myelin sheath / growth cone / protein homotetramerization / transmembrane transporter binding / calmodulin binding / apical plasma membrane / protein domain specific binding / centrosome / calcium ion binding / protein kinase binding / protein-containing complex / mitochondrion / nucleoplasm / identical protein binding / metal ion binding / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||
Biological species | Oryctolagus cuniculus (rabbit) / Rattus norvegicus (Norway rat) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.4 Å | |||||||||
Authors | Hughes TET / Pumroy RA | |||||||||
Funding support | United States, 2 items
| |||||||||
Citation | Journal: 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 |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_7967.map.gz | 25.2 MB | EMDB map data format | |
---|---|---|---|---|
Header (meta data) | emd-7967-v30.xml emd-7967.xml | 12.8 KB 12.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_7967_fsc.xml | 6.6 KB | Display | FSC data file |
Images | emd_7967.png | 80.5 KB | ||
Filedesc metadata | emd-7967.cif.gz | 6.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-7967 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-7967 | HTTPS FTP |
-Validation report
Summary document | emd_7967_validation.pdf.gz | 612.4 KB | Display | EMDB validaton report |
---|---|---|---|---|
Full document | emd_7967_full_validation.pdf.gz | 612 KB | Display | |
Data in XML | emd_7967_validation.xml.gz | 9.2 KB | Display | |
Data in CIF | emd_7967_validation.cif.gz | 11.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7967 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7967 | HTTPS FTP |
-Related structure data
Related structure data | 6dmwMC 7965C 7966C 6dmrC 6dmuC M: atomic model generated by this map C: citing same article (ref.) |
---|---|
Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
---|---|
Related items in Molecule of the Month |
-Map
File | Download / File: emd_7967.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Calmodulin-bound rbTRPV5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Sample components
-Entire : Calmodulin-bound rbTRPV5 tetramer
Entire | Name: Calmodulin-bound rbTRPV5 tetramer |
---|---|
Components |
|
-Supramolecule #1: Calmodulin-bound rbTRPV5 tetramer
Supramolecule | Name: Calmodulin-bound rbTRPV5 tetramer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
---|
-Supramolecule #2: rbTRPV5 tetramer
Supramolecule | Name: rbTRPV5 tetramer / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: Oryctolagus cuniculus (rabbit) |
-Supramolecule #3: rat Calmodulin
Supramolecule | Name: rat Calmodulin / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
---|---|
Source (natural) | Organism: Rattus norvegicus (Norway rat) |
-Macromolecule #1: Transient receptor potential cation channel subfamily V member 5
Macromolecule | Name: 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 weight | Theoretical: 82.899656 KDa |
Recombinant expression | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Sequence | String: 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 |
-Macromolecule #2: Calmodulin-1
Macromolecule | Name: Calmodulin-1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: Rattus norvegicus (Norway rat) |
Molecular weight | Theoretical: 16.852545 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MADQLTEEQI AEFKEAFSLF DKDGDGTITT KELGTVMRSL GQNPTEAELQ DMINEVDADG NGTIDFPEFL TMMARKMKDT DSEEEIREA FRVFDKDGNG YISAAELRHV MTNLGEKLTD EEVDEMIREA DIDGDGQVNY EEFVQMMTAK UniProtKB: Calmodulin-1 |
-Macromolecule #3: CALCIUM ION
Macromolecule | Name: CALCIUM ION / type: ligand / ID: 3 / Number of copies: 3 / Formula: CA |
---|---|
Molecular weight | Theoretical: 40.078 Da |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8.8 |
---|---|
Grid | Details: unspecified |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 1.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |