2Y5B

Structure of USP21 in complex with linear diubiquitin-aldehyde

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 

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Literature

Polyubiquitin Binding and Cross-Reactivity in the Usp Domain Deubiquitinase Usp21.

Ye, Y., Akutsu, M., Reyes-Turcu, F., Enchev, R.I., Wilkinson, K.D., Komander, D.

(2011) EMBO Rep 12: 350

  • DOI: 10.1038/embor.2011.17
  • Primary Citation of Related Structures:  
    2Y5B

  • PubMed Abstract: 

    • Modification of proteins by ubiquitin (Ub) and Ub-like (Ubl) modifiers regulates a variety of cellular functions. The ability of Ub to form chains of eight structurally and functionally distinct types adds further complexity to the system. Ub-specific pr ...

    Modification of proteins by ubiquitin (Ub) and Ub-like (Ubl) modifiers regulates a variety of cellular functions. The ability of Ub to form chains of eight structurally and functionally distinct types adds further complexity to the system. Ub-specific proteases (USPs) hydrolyse polyUb chains, and some have been suggested to be cross-reactive with Ubl modifiers, such as neural precursor cell expressed, developmentally downregulated 8 (NEDD8) and interferon-stimulated gene 15 (ISG15). Here, we report that USP21 cleaves Ub polymers, and with reduced activity also targets ISG15, but is inactive against NEDD8. A crystal structure of USP21 in complex with linear diUb aldehyde shows how USP21 interacts with polyUb through a previously unidentified second Ub- and ISG15-binding surface on the USP domain core. We also rationalize the inability of USP21 to target NEDD8 and identify differences that allow USPs to distinguish between structurally related modifications.

    Organizational Affiliation: 

    Protein and Nucleic Acid Chemistry, Medical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
UBIQUITIN CARBOXYL-TERMINAL HYDROLASE 21 A, E370Homo sapiensMutation(s): 0 
Gene Names: USP21, USP23, PP1490
EC: 3.1.2.15 (PDB Primary Data), 3.4.19.12 (PDB Primary Data)
Find proteins for Q9UK80 (Homo sapiens)
Explore Q9UK80 
Go to UniProtKB:  Q9UK80
NIH Common Fund Data Resources
PHAROS:  Q9UK80
GTEx:  ENSG00000143258
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
UBIQUITIN B, F152Homo sapiensMutation(s): 1 
Gene Names: UBB
Find proteins for P0CG47 (Homo sapiens)
Explore P0CG47 
Go to UniProtKB:  P0CG47
NIH Common Fund Data Resources
PHAROS:  P0CG47
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.87α = 90
b = 102.2β = 99.82
c = 86.8γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-25
    Type: Initial release