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- PDB-6yae: AP2 core in physiological buffer -

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Basic information

Entry
Database: PDB / ID: 6yae
TitleAP2 core in physiological buffer
Components
  • AP-2 complex subunit alpha
  • AP-2 complex subunit beta
  • AP-2 complex subunit mu
  • AP-2 complex subunit sigma
KeywordsENDOCYTOSIS / clathrin / clathrin adaptor / ap2 / clathrin assembly
Function / homology
Function and homology information


Gap junction degradation / Formation of annular gap junctions / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / WNT5A-dependent internalization of FZD4 / VLDLR internalisation and degradation / Retrograde neurotrophin signalling / Nef Mediated CD8 Down-regulation ...Gap junction degradation / Formation of annular gap junctions / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / LDL clearance / WNT5A-dependent internalization of FZD4 / VLDLR internalisation and degradation / Retrograde neurotrophin signalling / Nef Mediated CD8 Down-regulation / Trafficking of GluR2-containing AMPA receptors / Retrograde neurotrophin signalling / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / clathrin adaptor complex / WNT5A-dependent internalization of FZD4 / Trafficking of GluR2-containing AMPA receptors / WNT5A-dependent internalization of FZD4 / extrinsic component of presynaptic endocytic zone membrane / VLDLR internalisation and degradation / MHC class II antigen presentation / Recycling pathway of L1 / AP-2 adaptor complex / regulation of vesicle size / postsynaptic neurotransmitter receptor internalization / Recycling pathway of L1 / Retrograde neurotrophin signalling / Cargo recognition for clathrin-mediated endocytosis / Cargo recognition for clathrin-mediated endocytosis / clathrin-coated endocytic vesicle / positive regulation of synaptic vesicle endocytosis / LDL clearance / Clathrin-mediated endocytosis / clathrin adaptor activity / Clathrin-mediated endocytosis / vesicle budding from membrane / membrane coat / clathrin-dependent endocytosis / MHC class II antigen presentation / protein serine/threonine kinase binding / coronary vasculature development / signal sequence binding / endolysosome membrane / Nef Mediated CD4 Down-regulation / negative regulation of protein localization to plasma membrane / low-density lipoprotein particle receptor binding / aorta development / Neutrophil degranulation / ventricular septum development / clathrin binding / Recycling pathway of L1 / Trafficking of GluR2-containing AMPA receptors / positive regulation of receptor internalization / synaptic vesicle endocytosis / EPH-ephrin mediated repulsion of cells / clathrin-coated pit / vesicle-mediated transport / MHC class II antigen presentation / VLDLR internalisation and degradation / phosphatidylinositol binding / kidney development / clathrin-coated endocytic vesicle membrane / intracellular protein transport / terminal bouton / cytoplasmic side of plasma membrane / receptor internalization / kinase binding / endocytic vesicle membrane / disordered domain specific binding / synaptic vesicle / Cargo recognition for clathrin-mediated endocytosis / presynapse / Clathrin-mediated endocytosis / cytoplasmic vesicle / postsynapse / protein-containing complex assembly / Potential therapeutics for SARS / transmembrane transporter binding / protein domain specific binding / intracellular membrane-bounded organelle / lipid binding / glutamatergic synapse / synapse / protein-containing complex binding / protein kinase binding / membrane / plasma membrane / cytosol
Similarity search - Function
AP-2 complex subunit sigma / Clathrin adaptor, alpha-adaptin, appendage, C-terminal subdomain / Adaptor protein complex AP-2, alpha subunit / Alpha adaptin AP2, C-terminal domain / Mu2, C-terminal domain / AP-2 complex subunit mu, N-terminal / Adaptor protein complex, sigma subunit / Clathrin adaptor, beta-adaptin, appendage, Ig-like subdomain / Beta-adaptin appendage, C-terminal subdomain / AP-1/2/4 complex subunit beta ...AP-2 complex subunit sigma / Clathrin adaptor, alpha-adaptin, appendage, C-terminal subdomain / Adaptor protein complex AP-2, alpha subunit / Alpha adaptin AP2, C-terminal domain / Mu2, C-terminal domain / AP-2 complex subunit mu, N-terminal / Adaptor protein complex, sigma subunit / Clathrin adaptor, beta-adaptin, appendage, Ig-like subdomain / Beta-adaptin appendage, C-terminal subdomain / AP-1/2/4 complex subunit beta / Beta2-adaptin appendage, C-terminal sub-domain / Beta2-adaptin appendage, C-terminal sub-domain / AP complex subunit beta / Clathrin adaptor complex, small chain / Clathrin adaptor complexes small chain signature. / Clathrin adaptor complexes medium chain signature 1. / Clathrin adaptor, mu subunit / Clathrin adaptor, mu subunit, conserved site / Clathrin adaptor complexes medium chain signature 2. / Coatomer/calthrin adaptor appendage, C-terminal subdomain / Adaptor complexes medium subunit family / AP complex, mu/sigma subunit / Clathrin adaptor complex small chain / AP-2 complex subunit mu, C-terminal superfamily / Mu homology domain / Mu homology domain (MHD) profile. / Clathrin adaptor, alpha/beta/gamma-adaptin, appendage, Ig-like subdomain / Adaptin C-terminal domain / Adaptin C-terminal domain / Clathrin/coatomer adaptor, adaptin-like, N-terminal / Adaptin N terminal region / Clathrin adaptor, appendage, Ig-like subdomain superfamily / Longin-like domain superfamily / TBP domain superfamily / Armadillo/beta-catenin-like repeats / Armadillo / Armadillo-like helical / Armadillo-type fold
Similarity search - Domain/homology
AP-2 complex subunit alpha-2 / AP-2 complex subunit sigma / AP-2 complex subunit beta / AP-2 complex subunit mu / AP-2 complex subunit alpha
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
Homo sapiens (human)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsKane Dickson, V. / Kovtun, O. / Kelly, B.T. / Owen, D.J. / Briggs, J.A.G.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Wellcome Trust207455/Z/17/Z United Kingdom
Medical Research Council (MRC, United Kingdom)MC_UP_1201/16 United Kingdom
CitationJournal: Sci Adv / Year: 2020
Title: Architecture of the AP2/clathrin coat on the membranes of clathrin-coated vesicles.
Authors: Oleksiy Kovtun / Veronica Kane Dickson / Bernard T Kelly / David J Owen / John A G Briggs /
Abstract: Clathrin-mediated endocytosis (CME) is crucial for modulating the protein composition of a cell's plasma membrane. Clathrin forms a cage-like, polyhedral outer scaffold around a vesicle, to which ...Clathrin-mediated endocytosis (CME) is crucial for modulating the protein composition of a cell's plasma membrane. Clathrin forms a cage-like, polyhedral outer scaffold around a vesicle, to which cargo-selecting clathrin adaptors are attached. Adaptor protein complex (AP2) is the key adaptor in CME. Crystallography has shown AP2 to adopt a range of conformations. Here, we used cryo-electron microscopy, tomography, and subtomogram averaging to determine structures, interactions, and arrangements of clathrin and AP2 at the key steps of coat assembly, from AP2 in solution to membrane-assembled clathrin-coated vesicles (CCVs). AP2 binds cargo and PtdIns(4,5) (phosphatidylinositol 4,5-bisphosphate)-containing membranes via multiple interfaces, undergoing conformational rearrangement from its cytosolic state. The binding mode of AP2 β2 appendage into the clathrin lattice in CCVs and buds implies how the adaptor structurally modulates coat curvature and coat disassembly.
History
DepositionMar 12, 2020Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 29, 2020Provider: repository / Type: Initial release
Revision 1.1Aug 19, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _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 / _citation_author.identifier_ORCID / _citation_author.name

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Structure visualization

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Assembly

Deposited unit
A: AP-2 complex subunit alpha
B: AP-2 complex subunit beta
M: AP-2 complex subunit mu
S: AP-2 complex subunit sigma


Theoretical massNumber of molelcules
Total (without water)203,3754
Polymers203,3754
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area18320 Å2
ΔGint-77 kcal/mol
Surface area73710 Å2
MethodPISA

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Components

#1: Protein AP-2 complex subunit alpha


Mass: 69656.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Ap2a2 / Production host: Escherichia coli (E. coli) / References: UniProt: Q66HM2, UniProt: P18484*PLUS
#2: Protein AP-2 complex subunit beta / AP105B / Adaptor protein complex AP-2 subunit beta / Adaptor-related protein complex 2 subunit beta ...AP105B / Adaptor protein complex AP-2 subunit beta / Adaptor-related protein complex 2 subunit beta / Beta-2-adaptin / Beta-adaptin / Clathrin assembly protein complex 2 beta large chain / Plasma membrane adaptor HA2/AP2 adaptin beta subunit


Mass: 66953.195 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: AP2B1, ADTB2, CLAPB1 / Production host: Escherichia coli (E. coli) / References: UniProt: P63010
#3: Protein AP-2 complex subunit mu / AP-2 mu chain / Adaptor protein complex AP-2 subunit mu / Adaptor-related protein complex 2 subunit ...AP-2 mu chain / Adaptor protein complex AP-2 subunit mu / Adaptor-related protein complex 2 subunit mu / Clathrin assembly protein complex 2 mu medium chain / Clathrin coat assembly protein AP50 / Clathrin coat-associated protein AP50 / Mu2-adaptin / Plasma membrane adaptor AP-2 50 kDa protein


Mass: 49726.641 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Ap2m1 / Production host: Escherichia coli (E. coli) / References: UniProt: P84092
#4: Protein AP-2 complex subunit sigma / Adaptor protein complex AP-2 subunit sigma / Adaptor-related protein complex 2 subunit sigma / ...Adaptor protein complex AP-2 subunit sigma / Adaptor-related protein complex 2 subunit sigma / Clathrin assembly protein 2 sigma small chain / Clathrin coat assembly protein AP17 / Clathrin coat-associated protein AP17 / Plasma membrane adaptor AP-2 17 kDa protein / Sigma-adaptin 3b / Sigma2-adaptin


Mass: 17038.688 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ap2s1, Ap17, Claps2 / Production host: Escherichia coli (E. coli) / References: UniProt: P62743

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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

Component
IDNameTypeEntity IDParent-IDSource
1AP2 coreCOMPLEXall0MULTIPLE SOURCES
2AP-2 complex subunits alpha and muCOMPLEX#1, #31RECOMBINANT
3AP-2 complex subunit betaCOMPLEX#21RECOMBINANT
4AP-2 complex subunit sigmaCOMPLEX#41RECOMBINANT
Molecular weightValue: 0.27 MDa / Experimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Rattus norvegicus (Norway rat)10116
23Homo sapiens (human)9606
34Mus musculus (house mouse)10090
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Escherichia coli (E. coli)562
23Escherichia coli (E. coli)562
34Escherichia coli (E. coli)562
Buffer solutionpH: 7.2
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: This sample was primarily monodisperse.
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 32.4 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
CTF correctionType: NONE
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 105000 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00913951
ELECTRON MICROSCOPYf_angle_d0.78418886
ELECTRON MICROSCOPYf_dihedral_angle_d5.8931868
ELECTRON MICROSCOPYf_chiral_restr0.0462198
ELECTRON MICROSCOPYf_plane_restr0.0042403

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