Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 28.48 kDa 
• Atom Count: 2342 
• Modelled Residue Count: 252 
• Deposited Residue Count: 253 
• Unique protein chains: 2

1KYF

AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH EPS15 DPF PEPTIDE

• PDB DOI: 10.2210/pdb1KYF/pdb

• Classification: ENDOCYTOSIS/EXOCYTOSIS
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2002-02-04 Released: 2002-06-12 
• Deposition Author(s): Brett, T.J., Traub, L.M., Fremont, D.H.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.22 Å
• R-Value Free: 0.211 
• R-Value Work: 0.153 

Literature

Accessory protein recruitment motifs in clathrin-mediated endocytosis.

Brett, T.J., Traub, L.M., Fremont, D.H.

(2002) Structure 10: 797-809

• PubMed: 12057195 
• DOI: 10.1016/s0969-2126(02)00784-0
• Primary Citation of Related Structures:  
  1KY6, 1KY7, 1KYD, 1KYF, 1KYU


• PubMed Abstract: 
  

Clathrin-mediated endocytosis depends upon the interaction of accessory proteins with the alpha-ear of the AP-2 adaptor. We present structural characterization of these regulatory interactions. DPF and DPW motif peptides derived from eps15 and epsin bind in type I beta turn conformations to a conserved pocket on the alpha-ear platform. We show evidence for a second binding site that is DPW motif specific. The structure of a complex with an AP-2 binding segment from amphiphysin reveals a novel binding motif that we term FxDxF, which is engaged in an extended conformation by a unique surface of the platform domain. The FxDxF motif is also used by AP180 and the 170 kDa isoform of synaptojanin and can be found in several potential endocytic proteins, including HIP1, CD2AP, and PLAP. A mechanism of clathrin assembly regulation is suggested by three different AP-2 engagement modes.

---

Organizational Affiliation: 

Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA-ADAPTIN C	A	247	Mus musculus	Mutation(s): 0  Gene Names: Ap2a2, Adtab
UniProt & NIH Common Fund Data Resources
Find proteins for P17427 (Mus musculus) Explore P17427  Go to UniProtKB:  P17427
IMPC:  MGI:101920

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Epidermal growth factor receptor substrate 15	B [auth P]	6	N/A	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P42567 (Mus musculus) Explore P42567  Go to UniProtKB:  P42567
IMPC:  MGI:104583

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.22 Å
• R-Value Free: 0.211 
• R-Value Work: 0.153 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.62	α = 90
b = 72.82	β = 99.95
c = 41.86	γ = 90

Software Package:

Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling
SHELX	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-02-04 
• Released Date: 2002-06-12 
Deposition Author(s): Brett, T.J., Traub, L.M., Fremont, D.H.

Revision History  

• Version 1.0: 2002-06-12
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-11
  Changes: Refinement description