Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - ABC Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer -A2B 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 29324.25 
• Atom Count: 1614 
• Residue Count: 252 
• Unique protein chains: 2

3F1I

Human ESCRT-0 Core Complex

• DOI: 10.2210/pdb3F1I/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2008-10-28 Released: 2009-03-24 
• Deposition Author(s): Ren, X., Kloer, D.P., Kim, Y., Ghirlando, R., Saidi, L., Hummer, G., Hurley, J.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.253 
• R-Value Work: 0.239 

Literature

Hybrid Structural Model of the Complete Human ESCRT-0 Complex.

Ren, X., Kloer, D.P., Kim, Y.C., Ghirlando, R., Saidi, L.F., Hummer, G., Hurley, J.H.

(2009) Structure 17: 406-416

• PubMed: 19278655 
• DOI: 10.1016/j.str.2009.01.012


• PubMed Abstract: 
  

The human Hrs and STAM proteins comprise the ESCRT-0 complex, which sorts ubiquitinated cell surface receptors to lysosomes for degradation. Here we report a model for the complete ESCRT-0 complex based on the crystal structure of the Hrs-STAM core complex, previously solved domain structures, hydrodynamic measurements, and Monte Carlo simulations. ESCRT-0 expressed in insect cells has a hydrodynamic radius of RH = 7.9 nm and is a 1:1 heterodimer. The 2.3 Angstroms crystal structure of the ESCRT-0 core complex reveals two domain-swapped GAT domains and an antiparallel two-stranded coiled-coil, similar to yeast ESCRT-0. ESCRT-0 typifies a class of biomolecular assemblies that combine structured and unstructured elements, and have dynamic and open conformations to ensure versatility in target recognition. Coarse-grained Monte Carlo simulations constrained by experimental RH values for ESCRT-0 reveal a dynamic ensemble of conformations well suited for diverse functions.

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Organizational Affiliation: 

Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, MD 20892, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Hepatocyte growth factor-regulated tyrosine kinase substrate	H	98	Homo sapiens	Mutation(s): 0  Gene Names: HGS (HRS)
Find proteins for O14964 (Homo sapiens) Go to Gene View: HGS Go to UniProtKB:  O14964

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Signal transducing adapter molecule 1	S, C	77	Homo sapiens	Mutation(s): 0  Gene Names: STAM (STAM1)
Find proteins for Q92783 (Homo sapiens) Go to Gene View: STAM Go to UniProtKB:  Q92783

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.253 
• R-Value Work: 0.239 
• Space Group: I 4₁

Unit Cell:

Length (Å)	Angle (°)
a = 78.059	α = 90.00
b = 78.059	β = 90.00
c = 152.849	γ = 90.00

Software Package:

Software Name	Purpose
XSCALE	data scaling
HKL-2000	data collection
SHARP	phasing
PDB_EXTRACT	data extraction
XDS	data reduction
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2008-10-28 
• Released Date: 2009-03-24 
• Deposition Author(s): Ren, X., Kloer, D.P., Kim, Y., Ghirlando, R., Saidi, L., Hummer, G., Hurley, J.H.

Revision History 

• Version 1.0: 2009-03-24
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Advisory, Version format compliance