Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 11.75 kDa 
• Atom Count: 794 
• Modelled Residue Count: 101 
• Deposited Residue Count: 106 
• Unique protein chains: 2

1F8H

STRUCTURE OF THE SECOND EPS15 HOMOLOGY DOMAIN OF HUMAN EPS15 IN COMPLEX WITH PTGSSSTNPFR

• PDB DOI: 10.2210/pdb1F8H/pdb

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


• Deposited: 2000-06-30 Released: 2000-11-01 
• Deposition Author(s): De Beer, T., Hoofnagle, A.N., Enmon, J.L., Bowers, R.C., Yamabhai, M., Kay, B.K., Overduin, M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: 20 LOWEST NOE ENERGIES 

Literature

Molecular mechanism of NPF recognition by EH domains.

de Beer, T., Hoofnagle, A.N., Enmon, J.L., Bowers, R.C., Yamabhai, M., Kay, B.K., Overduin, M.

(2000) Nat Struct Biol 7: 1018-1022

• PubMed: 11062555 
• DOI: 10.1038/80924
• Primary Citation of Related Structures:  
  1F8H, 1FF1


• PubMed Abstract: 
  

Eps15 homology (EH) domains are protein interaction modules that recognize Asn-Pro-Phe (NPF) motifs in their biological ligands to mediate critical events during endocytosis and signal transduction. To elucidate the structural basis of the EH-NPF interaction, the solution structures of two EH-NPF complexes were solved using NMR spectroscopy. The first complex contains a peptide representing the Hrb C-terminal NPFL motif; the second contains a peptide in which an Arg residue substitutes the C-terminal Leu. The NPF residues are almost completely embedded in a hydrophobic pocket on the EH domain surface and the backbone of NPFX adopts a conformation reminiscent of the Asx-Pro type I beta-turn motif. The residue directly following NPF is crucial for recognition and is required to complete the beta-turn. Five amino acids on the EH surface mediate specific recognition of this residue through hydrophobic and electrostatic contacts. The complexes explain the selectivity of the second EH domain of Eps15 for NPF over DPF motifs and reveal a critical aromatic interaction that provides a conserved anchor for the recognition of FW, WW, SWG and HTF ligands by other EH domains.

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Organizational Affiliation: 

Department of Pharmacology, University of Colorado Health Sciences Center, 4200 East Ninth Avenue, Denver, Colorado 80262, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
EPIDERMAL GROWTH FACTOR RECEPTOR SUBSTRATE 15	A	95	Homo sapiens	Mutation(s): 0  Gene Names: EPS15, AF1P
UniProt & NIH Common Fund Data Resources
Find proteins for P42566 (Homo sapiens) Explore P42566  Go to UniProtKB:  P42566
PHAROS:  P42566

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PTGSSSTNPFR	B	11	N/A	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: 20 LOWEST NOE ENERGIES 
• OLDERADO: 1F8H Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2000-06-30 
• Released Date: 2000-11-01 
Deposition Author(s): De Beer, T., Hoofnagle, A.N., Enmon, J.L., Bowers, R.C., Yamabhai, M., Kay, B.K., Overduin, M.

Revision History  

• Version 1.0: 2000-11-01
  Type: Initial release
  
• Version 1.1: 2008-04-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations