[English] 日本語
![](img/lk-miru.gif)
- EMDB-8887: Vps4p-Vta1p complex with peptide binding to the central pore of Vps4p -
+
Open data
-
Basic information
Entry | Database: EMDB / ID: EMD-8887 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Vps4p-Vta1p complex with peptide binding to the central pore of Vps4p | |||||||||
![]() | Vps4-Vta1 complex | |||||||||
![]() |
| |||||||||
Function / homology | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Han H / Monroe N / Shen P / Sundquist WI / Hill CP | |||||||||
![]() | ![]() Title: The AAA ATPase Vps4 binds ESCRT-III substrates through a repeating array of dipeptide-binding pockets. Authors: Han Han / Nicole Monroe / Wesley I Sundquist / Peter S Shen / Christopher P Hill / ![]() Abstract: The hexameric AAA ATPase Vps4 drives membrane fission by remodeling and disassembling ESCRT-III filaments. Building upon our earlier 4.3 Å resolution cryo-EM structure (Monroe et al., 2017), we now ...The hexameric AAA ATPase Vps4 drives membrane fission by remodeling and disassembling ESCRT-III filaments. Building upon our earlier 4.3 Å resolution cryo-EM structure (Monroe et al., 2017), we now report a 3.2 Å structure of Vps4 bound to an ESCRT-III peptide substrate. The new structure reveals that the peptide approximates a β-strand conformation whose helical symmetry matches that of the five Vps4 subunits it contacts directly. Adjacent Vps4 subunits make equivalent interactions with successive substrate dipeptides through two distinct classes of side chain binding pockets formed primarily by Vps4 pore loop 1. These pockets accommodate a wide range of residues, while main chain hydrogen bonds may help dictate substrate-binding orientation. The structure supports a 'conveyor belt' model of translocation in which ATP binding allows a Vps4 subunit to join the growing end of the helix and engage the substrate, while hydrolysis and release promotes helix disassembly and substrate release at the lagging end. | |||||||||
History |
|
-
Structure visualization
Movie |
![]() |
---|---|
Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
-
Downloads & links
-EMDB archive
Map data | ![]() | 4.8 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 15.5 KB 15.5 KB | Display Display | ![]() |
Images | ![]() | 54.9 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6ap1MC ![]() 6bmfMC ![]() 8888C ![]() 8889C ![]() 8890C ![]() 8891C ![]() 8892C ![]() 8893C ![]() 8894C ![]() 8895C ![]() 8896C C: citing same article ( M: atomic model generated by this map |
---|---|
Similar structure data |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Vps4-Vta1 complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.0961 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-
Sample components
-Entire : Vps4-Vta1 complex
Entire | Name: Vps4-Vta1 complex |
---|---|
Components |
|
-Supramolecule #1: Vps4-Vta1 complex
Supramolecule | Name: Vps4-Vta1 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
---|---|
Source (natural) | Organism: ![]() ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() ![]() |
-Macromolecule #1: Vacuolar protein sorting-associated protein 4,Protein hcp1
Macromolecule | Name: Vacuolar protein sorting-associated protein 4,Protein hcp1 type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() Strain: ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1 |
Molecular weight | Theoretical: 55.768402 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: GQEEGEDNGG EDNKKLRGAL SSAILSEKPN VKWEDVAGLE GAKEALKEAV ILPVKFPHLF KGNRKPTSGI LLYGPPGTGK SYLAKAVAT EANSTFFSVS SSDLVSKWMG ESEKLVKQLF AMARENKPSI IFIDEVDALT GTRGEGESEA SRRIKTELLV Q MNGVGNDS ...String: GQEEGEDNGG EDNKKLRGAL SSAILSEKPN VKWEDVAGLE GAKEALKEAV ILPVKFPHLF KGNRKPTSGI LLYGPPGTGK SYLAKAVAT EANSTFFSVS SSDLVSKWMG ESEKLVKQLF AMARENKPSI IFIDEVDALT GTRGEGESEA SRRIKTELLV Q MNGVGNDS QGVLVLGATN IPWQLDSAIR RRFERRIYIP LPDLAARTTM FEINVGDTPC VLTKEDYRTL GAMTEGYSGS DI AVVVKDA LMQPIRKIQS ATHFKDVSTE DDETRKLTPC SPGDDGAIEM SWTDIEADEL KEPDLTIKDF LKAIKSTRPT VNE DDLLKQ EQFTRDFGQE GNGGGGSGGG GSGGGGSGGG MAVDMFIKIG DVKGESKDKT HAEEIDVLAW SWGMSQSGSM HMGG GGGAG KVNVQDLSFT KYIDKSTPNL MMACSSGKHY PQAKLTIRKA GGENQVEYLI ITLKEVLVSS VSTGGSGGED RLTEN VTLN FAQVQVDYQP QKADGAKDGG PVKYGWNIRQ NVQAG |
-Macromolecule #2: ACE-ASP-GLU-ILE-VAL-ASN-LYS-VAL-LEU-NH2
Macromolecule | Name: ACE-ASP-GLU-ILE-VAL-ASN-LYS-VAL-LEU-NH2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() ![]() |
Molecular weight | Theoretical: 954.122 Da |
Sequence | String: (ACE)DEIVNKVL(NH2) |
-Macromolecule #3: Vacuolar protein sorting-associated protein VTA1
Macromolecule | Name: Vacuolar protein sorting-associated protein VTA1 / type: protein_or_peptide / ID: 3 / Number of copies: 12 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() ![]() ![]() Strain: ATCC 204508 / S288c |
Molecular weight | Theoretical: 37.35966 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: MASNAARVVA TAKDFDKVGL GIIGYYLQLY AVELILSEED RSQEMTALAT ELLDTIEAFK KEIGGESEAE DSDKSLHVMN TLIHDQEKA KIYMLNFTMS LYNEKLKQLK DGPWDVMLKR SLWCCIDLFS CILHLWKENI SETSTNSLQK RIKYCKIYLS K LAKGEIGS ...String: MASNAARVVA TAKDFDKVGL GIIGYYLQLY AVELILSEED RSQEMTALAT ELLDTIEAFK KEIGGESEAE DSDKSLHVMN TLIHDQEKA KIYMLNFTMS LYNEKLKQLK DGPWDVMLKR SLWCCIDLFS CILHLWKENI SETSTNSLQK RIKYCKIYLS K LAKGEIGS SDEKTLDYAD FADDSEEIKD EDVDHQTSDL ENNNNDKVEG LAPKDQTTSY EPVDEVPEFI DDADSVNEEE QT VDKNEDA ITKDEQQVVK KEVDLTRPSA PSEPAAAEHK SYTKDELTKI MDRASKIEQI QKLAKYAISA LNYEDLPTAK DEL TKALDL LNSI |
-Macromolecule #4: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 5 / Formula: ADP |
---|---|
Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ![]() ChemComp-ADP: |
-Macromolecule #5: BERYLLIUM TRIFLUORIDE ION
Macromolecule | Name: BERYLLIUM TRIFLUORIDE ION / type: ligand / ID: 5 / Number of copies: 3 / Formula: BEF |
---|---|
Molecular weight | Theoretical: 66.007 Da |
Chemical component information | ![]() ChemComp-BEF: |
-Macromolecule #6: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 6 / Number of copies: 4 / Formula: MG |
---|---|
Molecular weight | Theoretical: 24.305 Da |
-Experimental details
-Structure determination
Method | ![]() |
---|---|
![]() | ![]() |
Aggregation state | particle |
-
Sample preparation
Buffer | pH: 7.4 |
---|---|
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Pretreatment - Type: GLOW DISCHARGE |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 80 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average exposure time: 0.25 sec. / Average electron dose: 1.55 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
-
Image processing
Startup model | Type of model: INSILICO MODEL / Details: e2initialmodel.py |
---|---|
Initial angle assignment | Type: ANGULAR RECONSTITUTION |
Final angle assignment | Type: ANGULAR RECONSTITUTION |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 1.4) / Number images used: 82225 |