Solution Structure of UBL5 a human Ubiquitin-Like Protein

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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Structural analysis of UBL5, a novel ubiquitin-like modifier

McNally, T.Huang, Q.Janis, R.S.Liu, Z.Olejniczak, E.T.Reilly, R.M.

(2003) Protein Sci 12: 1562-1566

  • DOI: https://doi.org/10.1110/ps.0382803
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    UBL5 is a widely expressed human protein that is strongly conserved across phylogeny. Orthologs of UBL5 occur in every eukaryotic genome characterized to date. The yeast ortholog of UBL5, HUB1, was reported to be a ubiquitin-like protein modifier important for modulation of protein function. However, unlike ubiquitin and all other ubiquitin-like modifiers, UBL5 and its yeast ortholog HUB1 both contain a C-terminal di-tyrosine motif followed by a single variable residue instead of the characteristic di-glycine found in all other ubiquitin-like modifiers. Here we describe the three-dimensional structure of UBL5 determined by NMR. The overall structure of the protein was found to be very similar to ubiquitin despite the low approximately 25% residue similarity. The signature C-terminal di-tyrosine residues in UBL5 are involved in the final beta sheet of the protein. This is very different to the di-glycine motif found in ubiquitin, which extends beyond the final beta sheet. In addition, we have confirmed an earlier report of an interaction between UBL5 and the cyclin-like kinase, CLK4, which we have determined is specific and does not extend to other cyclin-like kinase family members.

  • Organizational Affiliation

    Global Pharmaceutical Research and Discovery, Abbott Laboratories, 100 Abbott Park Road, Abbott Park, IL 60064-6100, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ubiquitin-like 593Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BZL1 (Homo sapiens)
Explore Q9BZL1 
Go to UniProtKB:  Q9BZL1
GTEx:  ENSG00000198258 
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UniProt GroupQ9BZL1
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-10-28
    Type: Initial release
  • Version 1.1: 2008-04-29
    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