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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-30034 | |||||||||||||||||||||||||||
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Title | 2.7A Yeast Vo state3 | |||||||||||||||||||||||||||
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![]() | V-ATPase / Vo sub-complex / CryoEM / TRANSPORT PROTEIN | |||||||||||||||||||||||||||
Function / homology | ![]() cell wall mannoprotein biosynthetic process / ATPase-coupled ion transmembrane transporter activity / protein localization to vacuolar membrane / cellular response to alkaline pH / Insulin receptor recycling / Transferrin endocytosis and recycling / polyphosphate metabolic process / ROS and RNS production in phagocytes / Amino acids regulate mTORC1 / Golgi lumen acidification ...cell wall mannoprotein biosynthetic process / ATPase-coupled ion transmembrane transporter activity / protein localization to vacuolar membrane / cellular response to alkaline pH / Insulin receptor recycling / Transferrin endocytosis and recycling / polyphosphate metabolic process / ROS and RNS production in phagocytes / Amino acids regulate mTORC1 / Golgi lumen acidification / P-type proton-exporting transporter activity / vacuolar transport / vacuolar proton-transporting V-type ATPase, V0 domain / endosomal lumen acidification / vacuole organization / protein targeting to vacuole / proton-transporting V-type ATPase complex / vacuolar proton-transporting V-type ATPase complex / fungal-type vacuole / cellular hyperosmotic response / vacuolar acidification / fungal-type vacuole membrane / phosphatidylinositol-3,5-bisphosphate binding / proton transmembrane transporter activity / proton-transporting ATPase activity, rotational mechanism / intracellular copper ion homeostasis / Neutrophil degranulation / RNA endonuclease activity / proton transmembrane transport / cell periphery / transmembrane transport / endocytosis / ATPase binding / protein-containing complex assembly / intracellular iron ion homeostasis / membrane raft / Golgi membrane / endoplasmic reticulum membrane / membrane Similarity search - Function | |||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||||||||||||||||||||
![]() | Roh SH / Shekhar M | |||||||||||||||||||||||||||
Funding support | ![]() ![]() ![]()
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![]() | ![]() Title: Cryo-EM and MD infer water-mediated proton transport and autoinhibition mechanisms of V complex. Authors: Soung-Hun Roh / Mrinal Shekhar / Grigore Pintilie / Christophe Chipot / Stephan Wilkens / Abhishek Singharoy / Wah Chiu / ![]() ![]() ![]() Abstract: Rotary vacuolar adenosine triphosphatases (V-ATPases) drive transmembrane proton transport through a V proton channel subcomplex. Despite recent high-resolution structures of several rotary ATPases, ...Rotary vacuolar adenosine triphosphatases (V-ATPases) drive transmembrane proton transport through a V proton channel subcomplex. Despite recent high-resolution structures of several rotary ATPases, the dynamic mechanism of proton pumping remains elusive. Here, we determined a 2.7-Å cryo-electron microscopy (cryo-EM) structure of yeast V proton channel in nanodisc that reveals the location of ordered water molecules along the proton path, details of specific protein-lipid interactions, and the architecture of the membrane scaffold protein. Moreover, we uncover a state of V that shows the -ring rotated by ~14°. Molecular dynamics simulations demonstrate that the two rotary states are in thermal equilibrium and depict how the protonation state of essential glutamic acid residues couples water-mediated proton transfer with -ring rotation. Our cryo-EM models and simulations also rationalize a mechanism for inhibition of passive proton transport as observed for free V that is generated as a result of V-ATPase regulation by reversible disassembly in vivo. | |||||||||||||||||||||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
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Downloads & links
-EMDB archive
Map data | ![]() | 4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 28.8 KB 28.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 7.1 KB | Display | ![]() |
Images | ![]() | 98.9 KB | ||
Filedesc metadata | ![]() | 8.2 KB | ||
Others | ![]() | 23.2 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 469.2 KB | Display | ![]() |
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Full document | ![]() | 468.8 KB | Display | |
Data in XML | ![]() | 9.6 KB | Display | |
Data in CIF | ![]() | 12.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6m0rMC ![]() 6m0sC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | sharpen | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : V-type proton ATPase Vo sub-complex
+Supramolecule #1: V-type proton ATPase Vo sub-complex
+Macromolecule #1: V-type proton ATPase subunit c'
+Macromolecule #2: V-type proton ATPase subunit c''
+Macromolecule #3: V0 assembly protein 1
+Macromolecule #4: V-type proton ATPase subunit e
+Macromolecule #5: V-type proton ATPase subunit c
+Macromolecule #6: Uncharacterized protein YPR170W-B
+Macromolecule #7: V-type proton ATPase subunit d
+Macromolecule #8: V-type proton ATPase subunit a, vacuolar isoform
+Macromolecule #10: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
+Macromolecule #11: PYROPHOSPHATE
+Macromolecule #12: (6~{E},10~{E},14~{E},18~{E},22~{E},26~{E},30~{R})-2,6,10,14,18,22...
+Macromolecule #13: water
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |