+
Open data
-
Basic information
| Entry | Database: PDB / ID: 7u8r | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title | Structure of porcine kidney V-ATPase with SidK, Rotary State 3 | |||||||||||||||
Components |
| |||||||||||||||
Keywords | MEMBRANE PROTEIN / proton translocation / complex | |||||||||||||||
| Function / homology | Function and homology informationROS and RNS production in phagocytes / RHOA GTPase cycle / Transferrin endocytosis and recycling / Amino acids regulate mTORC1 / Ion channel transport / Insulin receptor recycling / symbiont-mediated suppression of host phagosome acidification / plasma membrane proton-transporting V-type ATPase complex / eye pigmentation / central nervous system maturation ...ROS and RNS production in phagocytes / RHOA GTPase cycle / Transferrin endocytosis and recycling / Amino acids regulate mTORC1 / Ion channel transport / Insulin receptor recycling / symbiont-mediated suppression of host phagosome acidification / plasma membrane proton-transporting V-type ATPase complex / eye pigmentation / central nervous system maturation / rostrocaudal neural tube patterning / proton-transporting V-type ATPase, V1 domain / positive regulation of transforming growth factor beta1 production / proton-transporting two-sector ATPase complex, catalytic domain / synaptic vesicle lumen acidification / proton-transporting V-type ATPase, V0 domain / cellular response to increased oxygen levels / vacuolar proton-transporting V-type ATPase, V1 domain / vacuolar transport / endosome to plasma membrane protein transport / vacuolar proton-transporting V-type ATPase, V0 domain / clathrin-coated vesicle membrane / lysosomal lumen acidification / proton-transporting V-type ATPase complex / head morphogenesis / vacuolar proton-transporting V-type ATPase complex / osteoclast development / vacuolar acidification / regulation of cellular pH / dendritic spine membrane / vacuolar membrane / microvillus / ATPase activator activity / regulation of MAPK cascade / autophagosome membrane / proton-transporting ATPase activity, rotational mechanism / positive regulation of Wnt signaling pathway / transporter activator activity / H+-transporting two-sector ATPase / ATP metabolic process / transport vesicle / angiotensin maturation / RNA endonuclease activity / proton transmembrane transport / small GTPase binding / transmembrane transport / synaptic vesicle membrane / melanosome / positive regulation of canonical Wnt signaling pathway / presynapse / signaling receptor activity / ATPase binding / intracellular iron ion homeostasis / early endosome / lysosome / endosome membrane / endosome / apical plasma membrane / lysosomal membrane / external side of plasma membrane / endoplasmic reticulum membrane / ATP hydrolysis activity / ATP binding / membrane / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||||||||
| Biological species | ![]() ![]() | |||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||||||||
Authors | Tan, Y.Z. / Keon, K.A. | |||||||||||||||
| Funding support | Canada, Singapore, 4items
| |||||||||||||||
Citation | Journal: Life Sci Alliance / Year: 2022Title: CryoEM of endogenous mammalian V-ATPase interacting with the TLDc protein mEAK-7. Authors: Yong Zi Tan / Yazan M Abbas / Jing Ze Wu / Di Wu / Kristine A Keon / Geoffrey G Hesketh / Stephanie A Bueler / Anne-Claude Gingras / Carol V Robinson / Sergio Grinstein / John L Rubinstein / ![]() Abstract: V-ATPases are rotary proton pumps that serve as signaling hubs with numerous protein binding partners. CryoEM with exhaustive focused classification allowed detection of endogenous proteins ...V-ATPases are rotary proton pumps that serve as signaling hubs with numerous protein binding partners. CryoEM with exhaustive focused classification allowed detection of endogenous proteins associated with porcine kidney V-ATPase. An extra C subunit was found in ∼3% of complexes, whereas ∼1.6% of complexes bound mEAK-7, a protein with proposed roles in dauer formation in nematodes and mTOR signaling in mammals. High-resolution cryoEM of porcine kidney V-ATPase with recombinant mEAK-7 showed that mEAK-7's TLDc domain interacts with V-ATPase's stator, whereas its C-terminal α helix binds V-ATPase's rotor. This crosslink would be expected to inhibit rotary catalysis. However, unlike the yeast TLDc protein Oxr1p, exogenous mEAK-7 does not inhibit V-ATPase and mEAK-7 overexpression in cells does not alter lysosomal or phagosomal pH. Instead, cryoEM suggests that the mEAK-7:V-ATPase interaction is disrupted by ATP-induced rotation of the rotor. Comparison of Oxr1p and mEAK-7 binding explains this difference. These results show that V-ATPase binding by TLDc domain proteins can lead to effects ranging from strong inhibition to formation of labile interactions that are sensitive to the enzyme's activity. | |||||||||||||||
| History |
|
-
Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
|---|
-
Downloads & links
-
Download
| PDBx/mmCIF format | 7u8r.cif.gz | 1.4 MB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb7u8r.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7u8r.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7u8r_validation.pdf.gz | 1.6 MB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 7u8r_full_validation.pdf.gz | 1.7 MB | Display | |
| Data in XML | 7u8r_validation.xml.gz | 203.2 KB | Display | |
| Data in CIF | 7u8r_validation.cif.gz | 332 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/u8/7u8r ftp://data.pdbj.org/pub/pdb/validation_reports/u8/7u8r | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 26388MC ![]() 7u8oC ![]() 7u8pC ![]() 7u8qC M: map data used to model this data C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
| EM raw data | EMPIAR-10874 (Title: Single-Particle CryoEM of mammalian V-ATPase with the TLDc domain protein mEAK7 bound (Various Datasets)Data size: 12.7 TB Data #1: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7 collected using Tundra [micrographs - multiframe] Data #2: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7 collected using Tundra [micrographs - single frame] Data #3: Polished particles of Pig Kidney V-ATPase bound to mEAK-7 collected using Tundra [picked particles - single frame - processed] Data #4: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7 collected using Titan Krios and Falcon4 [micrographs - multiframe] Data #5: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7 collected using Titan Krios and Falcon4 [micrographs - single frame] Data #6: Polished particles of Pig Kidney V-ATPase bound to mEAK-7 collected using Titan Krios and Falcon4 [picked particles - multiframe - processed] Data #7: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7deltaCterm collected using Titan Krios and Falcon4 [micrographs - multiframe] Data #8: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7deltaCterm collected using Titan Krios and Falcon4 [micrographs - single frame] Data #9: Polished particles of Pig Kidney V-ATPase bound to mEAK-7deltaCterm collected using Titan Krios and Falcon4 [picked particles - single frame - processed] Data #10: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7 with ATP collected using Titan Krios and Falcon4 [micrographs - multiframe] Data #11: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7 with ATP collected using Titan Krios and Falcon4 [micrographs - single frame] Data #12: Polished particles of Pig Kidney V-ATPase bound to mEAK-7 with ATP collected using Titan Krios and Falcon4 [picked particles - single frame - processed] Data #13: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7 with EDTA/EGTA collected using Titan Krios and Falcon4 [micrographs - multiframe] Data #14: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7 with EDTA/EGTA collected using Titan Krios and Falcon4 [micrographs - single frame] Data #15: Polished particles of Pig Kidney V-ATPase bound to mEAK-7 with EDTA/EGTA collected using Titan Krios and Falcon4 [picked particles - single frame - processed] Data #16: Unaligned multiframe movies of Pig Kidney V-ATPase bound to mEAK-7 with Calcium collected using Glacios with Selectris X and Falcon 4 [micrographs - multiframe] Data #17: Aligned and dose-weighted micrographs of Pig Kidney V-ATPase bound to mEAK-7 with Calcium collected using Glacios with Selectris X and Falcon 4 [micrographs - single frame] Data #18: Polished particles of Pig Kidney V-ATPase bound to mEAK-7 with Calcium collected using Glacios with Selectris X and Falcon 4 [picked particles - single frame - processed]) |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
-V-type proton ATPase ... , 12 types, 26 molecules ABCGHIJKLMNOTabdeghijklmno
| #1: Protein | Mass: 68393.844 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: Q29048, H+-transporting two-sector ATPase #3: Protein | | Mass: 44066.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #4: Protein | | Mass: 28301.902 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #5: Protein | Mass: 26162.373 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #6: Protein | | Mass: 13403.288 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #7: Protein | Mass: 13748.474 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #9: Protein | | Mass: 55917.797 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #10: Protein | | Mass: 96365.258 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #11: Protein | | Mass: 21530.426 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #13: Protein | | Mass: 40369.949 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #14: Protein | | Mass: 9343.286 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #16: Protein | Mass: 15639.677 Da / Num. of mol.: 9 / Source method: isolated from a natural source / Source: (natural) ![]() |
|---|
-Protein , 5 types, 9 molecules DEFQRScfp
| #2: Protein | Mass: 57162.859 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) ![]() #8: Protein | Mass: 38539.371 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #12: Protein | | Mass: 51547.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #15: Protein | | Mass: 11016.065 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() #17: Protein | | Mass: 39200.055 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
|---|
-Non-polymers , 1 types, 1 molecules 
| #18: Chemical | ChemComp-ADP / |
|---|
-Details
| Has ligand of interest | Y |
|---|
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: Porcine kidney V-ATPase with SidK, Rotary State 3 / Type: COMPLEX / Entity ID: #1-#17 / Source: MULTIPLE SOURCES |
|---|---|
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3911.445 nm / Nominal defocus min: 100 nm |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
-
Processing
| CTF correction | Type: NONE |
|---|---|
| 3D reconstruction | Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 22866 / Symmetry type: POINT |
Movie
Controller
About Yorodumi







Canada,
Singapore, 4items
Citation







PDBj




FIELD EMISSION GUN