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- PDB-6vqi: Mammalian V-ATPase from rat brain collar and peripheral stalks ro... -

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Basic information

Entry
Database: PDB / ID: 6vqi
TitleMammalian V-ATPase from rat brain collar and peripheral stalks rotational state 1 (from focused refinement)
Components
  • V-type proton ATPase 116 kDa subunit a isoform 1
  • V-type proton ATPase subunit C 1
  • V-type proton ATPase subunit E 1
  • V-type proton ATPase subunit G
KeywordsPROTON TRANSPORT / membrane protein complex / rotary atpase
Function / homology
Function and homology information


Ion channel transport / Transferrin endocytosis and recycling / Amino acids regulate mTORC1 / Insulin receptor recycling / proton-transporting V-type ATPase, V1 domain / synaptic vesicle lumen acidification / extrinsic component of synaptic vesicle membrane / P-type proton-exporting transporter activity / intracellular organelle / clathrin-coated vesicle membrane ...Ion channel transport / Transferrin endocytosis and recycling / Amino acids regulate mTORC1 / Insulin receptor recycling / proton-transporting V-type ATPase, V1 domain / synaptic vesicle lumen acidification / extrinsic component of synaptic vesicle membrane / P-type proton-exporting transporter activity / intracellular organelle / clathrin-coated vesicle membrane / vacuolar proton-transporting V-type ATPase, V0 domain / vacuolar proton-transporting V-type ATPase, V1 domain / vacuolar proton-transporting V-type ATPase complex / proton-transporting V-type ATPase complex / vacuolar acidification / ROS and RNS production in phagocytes / Neutrophil degranulation / ATPase complex / microvillus / transmembrane transporter complex / regulation of macroautophagy / proton-transporting ATPase activity, rotational mechanism / proton transmembrane transport / terminal bouton / synaptic vesicle membrane / melanosome / synaptic vesicle / apical part of cell / ATPase binding / endosome / apical plasma membrane / perinuclear region of cytoplasm / ATP hydrolysis activity / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
ATPase, V1 complex, subunit C / Vacuolar ATP synthase subunit C superfamily / V-ATPase subunit C / Vacuolar (H+)-ATPase G subunit / Vacuolar (H+)-ATPase G subunit / ATPase, V0 complex, subunit 116kDa, eukaryotic / V-type ATPase, V0 complex, 116kDa subunit family / V-type ATPase 116kDa subunit family / V-type ATPase subunit E / V-type ATPase subunit E, C-terminal domain superfamily / ATP synthase (E/31 kDa) subunit
Similarity search - Domain/homology
V-type proton ATPase 116 kDa subunit a 1 / V-type proton ATPase subunit C 1 / V-type proton ATPase subunit E 1 / V-type proton ATPase subunit G
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.3 Å
AuthorsAbbas, Y.M. / Rubinstein, J.L.
Funding support Canada, 1items
OrganizationGrant numberCountry
Canadian Institutes of Health Research (CIHR) Canada
CitationJournal: Science / Year: 2020
Title: Structure of V-ATPase from the mammalian brain.
Authors: Yazan M Abbas / Di Wu / Stephanie A Bueler / Carol V Robinson / John L Rubinstein /
Abstract: In neurons, the loading of neurotransmitters into synaptic vesicles uses energy from proton-pumping vesicular- or vacuolar-type adenosine triphosphatases (V-ATPases). These membrane protein complexes ...In neurons, the loading of neurotransmitters into synaptic vesicles uses energy from proton-pumping vesicular- or vacuolar-type adenosine triphosphatases (V-ATPases). These membrane protein complexes possess numerous subunit isoforms, which complicates their analysis. We isolated homogeneous rat brain V-ATPase through its interaction with SidK, a effector protein. Cryo-electron microscopy allowed the construction of an atomic model, defining the enzyme's ATP:proton ratio as 3:10 and revealing a homolog of yeast subunit f in the membrane region, which we tentatively identify as RNAseK. The c ring encloses the transmembrane anchors for cleaved ATP6AP1/Ac45 and ATP6AP2/PRR, the latter of which is the (pro)renin receptor that, in other contexts, is involved in both Wnt signaling and the renin-angiotensin system that regulates blood pressure. This structure shows how ATP6AP1/Ac45 and ATP6AP2/PRR enable assembly of the enzyme's catalytic and membrane regions.
History
DepositionFeb 5, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 18, 2020Provider: repository / Type: Initial release
Revision 1.1Sep 30, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Assembly

Deposited unit
G: V-type proton ATPase subunit C 1
I: V-type proton ATPase subunit E 1
J: V-type proton ATPase subunit E 1
K: V-type proton ATPase subunit E 1
M: V-type proton ATPase subunit G
N: V-type proton ATPase subunit G
O: V-type proton ATPase subunit G
a: V-type proton ATPase 116 kDa subunit a isoform 1


Theoretical massNumber of molelcules
Total (without water)259,9628
Polymers259,9628
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein V-type proton ATPase subunit C 1 / V-ATPase subunit C 1 / Vacuolar proton pump subunit C 1


Mass: 43958.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rattus norvegicus (Norway rat) / References: UniProt: Q5FVI6
#2: Protein V-type proton ATPase subunit E 1 / V-ATPase subunit E 1 / Vacuolar proton pump subunit E 1


Mass: 26167.453 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) Rattus norvegicus (Norway rat) / References: UniProt: Q6PCU2
#3: Protein V-type proton ATPase subunit G


Mass: 13690.476 Da / Num. of mol.: 3 / Source method: isolated from a natural source / Source: (natural) Rattus norvegicus (Norway rat) / References: UniProt: Q8R2H0
#4: Protein V-type proton ATPase 116 kDa subunit a isoform 1 / V-ATPase 116 kDa isoform a1 / Clathrin-coated vesicle/synaptic vesicle proton pump 116 kDa subunit ...V-ATPase 116 kDa isoform a1 / Clathrin-coated vesicle/synaptic vesicle proton pump 116 kDa subunit / Vacuolar adenosine triphosphatase subunit Ac116 / Vacuolar proton pump subunit 1 / Vacuolar proton translocating ATPase 116 kDa subunit a isoform 1


Mass: 96429.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Rattus norvegicus (Norway rat) / References: UniProt: P25286
Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Peripheral stalk and collar region of mammalian V-ATPase composed of subunits E1, G2, N-terminal domain of a1, and C1.
Type: COMPLEX / Entity ID: all / Source: NATURAL
Source (natural)Organism: Rattus norvegicus (Norway rat)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 43 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k)

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Processing

EM softwareName: cryoSPARC / Category: 3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 90648 / Algorithm: BACK PROJECTION / Symmetry type: POINT

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