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- PDB-9pwc: Composite structure of AP-2 bound to the dileucine motif and WxxP... -

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Basic information

Entry
Database: PDB / ID: 9pwc
TitleComposite structure of AP-2 bound to the dileucine motif and WxxPhi motif of CCDC32
Components
  • AP-2 complex subunit alpha-2
  • AP-2 complex subunit beta
  • AP-2 complex subunit mu
  • AP-2 complex subunit sigma
  • Coiled-coil domain-containing protein 32
KeywordsENDOCYTOSIS / Clathin / AP-2 adaptor complex / CCDC32 / assembly chaperone
Function / homology
Function and homology information


Formation of annular gap junctions / Gap junction degradation / regulation of clathrin-dependent endocytosis / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / WNT5A-dependent internalization of FZD4 / Retrograde neurotrophin signalling / head development / Trafficking of GluR2-containing AMPA receptors / clathrin coat ...Formation of annular gap junctions / Gap junction degradation / regulation of clathrin-dependent endocytosis / LDL clearance / WNT5A-dependent internalization of FZD2, FZD5 and ROR2 / WNT5A-dependent internalization of FZD4 / Retrograde neurotrophin signalling / head development / Trafficking of GluR2-containing AMPA receptors / clathrin coat / VLDLR internalisation and degradation / cardiac septum development / clathrin adaptor complex / extrinsic component of presynaptic endocytic zone membrane / Recycling pathway of L1 / regulation of vesicle size / postsynaptic endocytic zone / AP-2 adaptor complex / postsynaptic neurotransmitter receptor internalization / cilium organization / Cargo recognition for clathrin-mediated endocytosis / membrane coat / Clathrin-mediated endocytosis / clathrin coat assembly / positive regulation of synaptic vesicle endocytosis / clathrin-cargo adaptor activity / vesicle budding from membrane / clathrin-dependent endocytosis / MHC class II antigen presentation / signal sequence binding / coronary vasculature development / positive regulation of protein localization to membrane / neurotransmitter secretion / regulation of hematopoietic stem cell differentiation / ventricular septum development / aorta development / low-density lipoprotein particle receptor binding / clathrin binding / positive regulation of receptor internalization / positive regulation of endocytosis / negative regulation of protein localization to plasma membrane / synaptic vesicle endocytosis / vesicle-mediated transport / Neutrophil degranulation / clathrin-coated pit / phosphatidylinositol binding / secretory granule / protein serine/threonine kinase binding / kidney development / intracellular protein transport / receptor internalization / cytoplasmic side of plasma membrane / kinase binding / disordered domain specific binding / synaptic vesicle / heart development / protein-containing complex assembly / cytoplasmic vesicle / transmembrane transporter binding / postsynapse / protein domain specific binding / synapse / lipid binding / protein kinase binding / protein-containing complex binding / glutamatergic synapse / mitochondrion / plasma membrane
Similarity search - Function
Coiled-coil domain containing protein 32 / Coiled-coil domain containing 32 / 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 / Clathrin adaptor, beta-adaptin, appendage, Ig-like subdomain / Beta2-adaptin appendage, C-terminal sub-domain ...Coiled-coil domain containing protein 32 / Coiled-coil domain containing 32 / 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 / Clathrin adaptor, beta-adaptin, appendage, Ig-like subdomain / Beta2-adaptin appendage, C-terminal sub-domain / AP-1/2/4 complex subunit beta / Adaptor protein complex, sigma subunit / : / Beta-adaptin appendage, C-terminal subdomain / Beta2-adaptin appendage, C-terminal sub-domain / Clathrin adaptor complex, small chain / Clathrin adaptor complexes small chain signature. / AP complex subunit beta / Clathrin adaptor complexes medium chain signature 1. / Coatomer/calthrin adaptor appendage, C-terminal subdomain / Clathrin adaptor, mu subunit / Clathrin adaptor, mu subunit, conserved site / Clathrin adaptor complexes medium chain signature 2. / : / Clathrin adaptor, alpha/beta/gamma-adaptin, appendage, Ig-like subdomain / Adaptin C-terminal domain / Adaptin C-terminal domain / AP complex, mu/sigma subunit / Adaptor complexes medium subunit family / Clathrin adaptor complex small chain / Clathrin/coatomer adaptor, adaptin-like, N-terminal / AP-2 complex subunit mu, C-terminal superfamily / Adaptin N terminal region / Clathrin adaptor, appendage, Ig-like subdomain superfamily / Mu homology domain / Mu homology domain (MHD) profile. / 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 mu / Coiled-coil domain-containing protein 32 / AP-2 complex subunit beta
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3 Å
AuthorsBaker, R.W. / Kikkawa, M. / Sloan, D.E. / Yanagisawa, H.
Funding support United States, Japan, 7items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM150960 United States
Japan Agency for Medical Research and Development (AMED)JP24ama121002 Japan
Japan Society for the Promotion of Science (JSPS)21H05248 Japan
Japan Society for the Promotion of Science (JSPS)21H04762 Japan
Japan Society for the Promotion of Science (JSPS)SP24007 Japan
National Institutes of Health/National Institute of Dental and Craniofacial Research (NIH/NIDCR)F31DE034311 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)P30CA016086 United States
CitationJournal: To Be Published
Title: Structure of AP-2 bound to the dileucine motif and WxxPhi motif of CCDC32; combined map
Authors: Baker, R.W. / Kikkawa, M. / Sloan, D.E. / Yanagisawa, H.
History
DepositionAug 4, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 8, 2026Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 8, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: AP-2 complex subunit alpha-2
B: AP-2 complex subunit beta
C: Coiled-coil domain-containing protein 32
M: AP-2 complex subunit mu
S: AP-2 complex subunit sigma


Theoretical massNumber of molelcules
Total (without water)224,2455
Polymers224,2455
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein AP-2 complex subunit alpha-2 / 100 kDa coated vesicle protein C / Adaptor protein complex AP-2 subunit alpha-2 / Adaptor-related ...100 kDa coated vesicle protein C / Adaptor protein complex AP-2 subunit alpha-2 / Adaptor-related protein complex 2 subunit alpha-2 / Alpha-adaptin C / Alpha2-adaptin / Clathrin assembly protein complex 2 alpha-C large chain / Plasma membrane adaptor HA2/AP2 adaptin alpha C subunit


Mass: 70573.320 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ap2a2, Adtab / Production host: Escherichia coli (E. coli) / References: UniProt: P17427
#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.) Mus musculus (house mouse) / Gene: Ap2b1, Clapb1 / Production host: Escherichia coli (E. coli) / References: UniProt: Q9DBG3
#3: Protein Coiled-coil domain-containing protein 32


Mass: 19953.205 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Ccdc32, Gm631 / Production host: Escherichia coli (E. coli) / References: UniProt: Q8BS39
#4: 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.) Mus musculus (house mouse) / Gene: Ap2m1, Clapm1 / Production host: Escherichia coli (E. coli) / References: UniProt: P84091
#5: 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
Has protein modificationN

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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: Structure of AP-2 bound to the dileucine motif and WxxPhi motif of CCDC32
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.6
SpecimenConc.: 0.4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy imaging

MicroscopyModel: JEOL CRYO ARM 300
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 80000 X / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm
Image recordingAverage exposure time: 2.6 sec. / Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 65489

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Processing

EM software
IDNameVersionCategory
1cryoSPARCparticle selection
2SerialEMimage acquisition
4cryoSPARCCTF correction
7UCSF ChimeraXmodel fitting
9PHENIXmodel refinement
13cryoSPARC4.63D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 97343 / Details: Non-uniform refinement; local refinement / Symmetry type: POINT
Atomic model buildingSource name: AlphaFold / Type: in silico model
RefinementHighest resolution: 3 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)

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