3ZLZ

Lys6-linked tri-ubiquitin

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.254 

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This is version 1.3 of the entry. See complete history. 


Literature

Assembly, Analysis and Architecture of Atypical Ubiquitin Chains

Hospenthal, M.K., Freund, S.M.V., Komander, D.

(2013) Nat Struct Mol Biol 20: 555

  • DOI: 10.1038/nsmb.2547
  • Primary Citation of Related Structures:  
    3ZLZ

  • PubMed Abstract: 

    • Ubiquitin (Ub) chains regulate many cellular processes, but several chain types including Lys6 linkages have remained unstudied. Here we analyze the bacterial effector E3 ligase NleL (non-Lee-encoded effector ligase) from enterohemorrhagic Escherichia coli (EHEC) O157:H7, which assembles Lys6- and Lys48-linked Ub polymers ...

    Ubiquitin (Ub) chains regulate many cellular processes, but several chain types including Lys6 linkages have remained unstudied. Here we analyze the bacterial effector E3 ligase NleL (non-Lee-encoded effector ligase) from enterohemorrhagic Escherichia coli (EHEC) O157:H7, which assembles Lys6- and Lys48-linked Ub polymers. Using linkage-specific human deubiquitinases (DUBs) we show that NleL generates heterotypic Ub chains, and branched chains are efficiently hydrolyzed by DUBs. USP family DUBs cleave Lys6-linked polymers exclusively from the distal end, whereas a DUB with preference for Lys6 can cleave Lys6-linked polymers at any position in the chain. We used NleL to generate large quantities of Lys6-linked polyUb. Crystallographic and NMR spectroscopy analyses revealed that an asymmetric interface between Ile44 and Ile36 hydrophobic patches of neighboring Ub moieties is propagated in longer Lys6-linked Ub chains. Interactions via the Ile36 patch can displace Leu8 from the Ile44 patch, leading to marked structural perturbations of Ub.

    Organizational Affiliation: 

    Medical Research Council Laboratory of Molecular Biology, Cambridge, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
UBIQUITINA, B76Homo 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: 2.90 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.254 
  • Space Group: P 43 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.93α = 90
b = 104.93β = 90
c = 104.93γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-10
    Type: Initial release
  • Version 1.1: 2013-04-17
    Changes: Database references
  • Version 1.2: 2013-05-22
    Changes: Database references
  • Version 1.3: 2017-09-27
    Changes: Data collection