Structure of At3g01050, a ubiquitin-fold protein from Arabidopsis thaliana

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

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This is version 1.4 of the entry. See complete history


Cell-free protein production and labeling protocol for NMR-based structural proteomics.

Vinarov, D.A.Lytle, B.L.Peterson, F.C.Tyler, E.M.Volkman, B.F.Markley, J.L.

(2004) Nat Methods 1: 149-153

  • DOI: https://doi.org/10.1038/nmeth716
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Structural proteomics requires robust, scalable methods. Here we describe a wheat germ cell-free platform for protein production that supports efficient NMR structural studies of eukaryotic proteins and offers advantages over cell-based methods. To illustrate this platform, we describe its application to a specific target (At3g01050.1) from Arabidopsis thaliana. After cloning the target gene into a specialized plasmid, we carry out a small-scale (50 mul) in vitro sequential transcription and translation trial to ascertain the level of protein production and solubility. Next, we prepare mRNA for use in a 4-ml semicontinuous cell-free translation reaction to incorporate (15)N-labeled amino acids into a protein sample that we purify and test for suitability for NMR structural analysis. We then repeat the cell-free approach with (13)C,(15)N-labeled amino acids to prepare a doubly labeled sample. The three-dimensional (3D) structure of At3g01050.1 shows that this protein is an unusual member of the beta-grasp protein family.

  • Organizational Affiliation

    Center for Eukaryotic Structural Genomics, University of Wisconsin-Madison, 433 Babcock Drive, Madison, Wisconsin 53706, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ubiquitin family126Arabidopsis thalianaMutation(s): 0 
Gene Names: At3g01050
Find proteins for Q9MAB9 (Arabidopsis thaliana)
Explore Q9MAB9 
Go to UniProtKB:  Q9MAB9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9MAB9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-02-24
    Type: Initial release
  • Version 1.1: 2008-02-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-05-22
    Changes: Data collection