Biological Assembly 1  

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 19542.22 
• Atom Count: 1287 
• Residue Count: 173 
• Unique protein chains: 2

2D3G

Double sided ubiquitin binding of Hrs-UIM

• DOI: 10.2210/pdb2D3G/pdb

• Classification: PROTEIN TRANSPORT
• Organism(s): Homo sapiens, Bos taurus


• Deposited: 2005-09-28 Released: 2005-12-20 
• Deposition Author(s): Hirano, S., Kawasaki, M., Kato, R., Wakatsuki, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Free: 0.228 
• R-Value Work: 0.197 

Literature

Double-sided ubiquitin binding of Hrs-UIM in endosomal protein sorting

Hirano, S., Kawasaki, M., Ura, H., Kato, R., Raiborg, C., Stenmark, H., Wakatsuki, S.

(2006) Nat.Struct.Mol.Biol. 13: 272-277

• PubMed: 16462748 
• DOI: 10.1038/nsmb1051


• PubMed Abstract: 
  

Hrs has an essential role in sorting of monoubiquitinated receptors to multivesicular bodies for lysosomal degradation, through recognition of ubiquitinated receptors by its ubiquitin-interacting motif (UIM). Here, we present the structure of a complex of Hrs-UIM and ubiquitin at 1.7-A resolution. Hrs-UIM forms a single alpha-helix, which binds two ubiquitin molecules, one on either side. These two ubiquitin molecules are related by pseudo two-fold screw symmetry along the helical axis of the UIM, corresponding to a shift by two residues on the UIM helix. Both ubiquitin molecules interact with the UIM in the same manner, using the Ile44 surface, with equal binding affinities. Mutational experiments show that both binding sites of Hrs-UIM are required for efficient degradative protein sorting. Hrs-UIM belongs to a new subclass of double-sided UIMs, in contrast to its yeast homolog Vps27p, which has two tandem single-sided UIMs.

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Organizational Affiliation: 

Structural Biology Research Center, Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
ubiquitin	A, B	76	Bos taurus	Mutation(s): 0  Gene Names: UBC
Find proteins for P0CH28 (Bos taurus) Go to Gene View: UBC Go to UniProtKB:  P0CH28

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
ubiquitin interacting motif from hepatocyte growth factor-regulated tyrosine kinase substrate	P	21	Homo sapiens	Mutation(s): 0  Gene Names: HGS (HRS)
Find proteins for O14964 (Homo sapiens) Go to Gene View: HGS Go to UniProtKB:  O14964

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.7 Å
• R-Value Free: 0.228 
• R-Value Work: 0.197 
• Space Group: H 3 2

Unit Cell:

Length (Å)	Angle (°)
a = 73.244	α = 90.00
b = 73.244	β = 90.00
c = 169.636	γ = 120.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement
MOLREP	phasing
HKL-2000	data collection

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-09-28 
• Released Date: 2005-12-20 
• Deposition Author(s): Hirano, S., Kawasaki, M., Kato, R., Wakatsuki, S.

Revision History 

• Version 1.0: 2005-12-20
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance