6QH7

AP2 clathrin adaptor mu2T156-phosphorylated core with two cargo peptides in open+ conformation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report



Literature

Temporal Ordering in Endocytic Clathrin-Coated Vesicle Formation via AP2 Phosphorylation.

Wrobel, A.G.Kadlecova, Z.Kamenicky, J.Yang, J.C.Herrmann, T.Kelly, B.T.McCoy, A.J.Evans, P.R.Martin, S.Muller, S.Sroubek, F.Neuhaus, D.Honing, S.Owen, D.J.

(2019) Dev Cell 50: 494-508.e11

  • DOI: 10.1016/j.devcel.2019.07.017
  • Primary Citation of Related Structures:  
    6QH6, 6QH5, 6QH7, 6RH5, 6RH6

  • PubMed Abstract: 
  • Clathrin-mediated endocytosis (CME) is key to maintaining the transmembrane protein composition of cells' limiting membranes. During mammalian CME, a reversible phosphorylation event occurs on Thr156 of the μ2 subunit of the main endocytic clathrin a ...

    Clathrin-mediated endocytosis (CME) is key to maintaining the transmembrane protein composition of cells' limiting membranes. During mammalian CME, a reversible phosphorylation event occurs on Thr156 of the μ2 subunit of the main endocytic clathrin adaptor, AP2. We show that this phosphorylation event starts during clathrin-coated pit (CCP) initiation and increases throughout CCP lifetime. μ2Thr156 phosphorylation favors a new, cargo-bound conformation of AP2 and simultaneously creates a binding platform for the endocytic NECAP proteins but without significantly altering AP2's cargo affinity in vitro. We describe the structural bases of both. NECAP arrival at CCPs parallels that of clathrin and increases with μ2Thr156 phosphorylation. In turn, NECAP recruits drivers of late stages of CCP formation, including SNX9, via a site distinct from where NECAP binds AP2. Disruption of the different modules of this phosphorylation-based temporal regulatory system results in CCP maturation being delayed and/or stalled, hence impairing global rates of CME.


    Organizational Affiliation

    CIMR, WT/MRC Building, Hills Road, Cambridge CB2 0QQ, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit alphaA621Rattus norvegicusMutation(s): 0 
Gene Names: Ap2a2Adtab
Find proteins for P18484 (Rattus norvegicus)
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Go to UniProtKB:  P18484
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit betaB592Homo sapiensMutation(s): 0 
Gene Names: AP2B1ADTB2CLAPB1
Find proteins for P63010 (Homo sapiens)
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Go to UniProtKB:  P63010
NIH Common Fund Data Resources
PHAROS  P63010
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
ADAPTOR-RELATED PROTEIN COMPLEX 2, MU 2 SUBUNIT, C-TERMINAL DOMAINMN446Rattus norvegicusMutation(s): 0 
Gene Names: Ap2m1
Find proteins for P84092 (Rattus norvegicus)
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Go to UniProtKB:  P84092
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
TGN38 CARGO PEPTIDEP6Homo sapiensMutation(s): 0 
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
CD4 CARGO PEPTIDEQ10Homo sapiensMutation(s): 0 
Gene Names: CD4
Find proteins for P01730 (Homo sapiens)
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NIH Common Fund Data Resources
PHAROS  P01730
Protein Feature View
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  • Reference Sequence
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
AP-2 complex subunit sigmaS142Rattus norvegicusMutation(s): 0 
Gene Names: Ap2s1Ap17Claps2
Find proteins for P62744 (Rattus norvegicus)
Explore P62744 
Go to UniProtKB:  P62744
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
QL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 182.177α = 90
b = 182.177β = 90
c = 211.602γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom090909/Z/09/Z
Wellcome TrustUnited Kingdom097040/Z/11/Z

Revision History 

  • Version 1.0: 2019-09-04
    Type: Initial release