Crystal Structure of the 9-10 MoaD Insertion Mutant of Ubiquitin

Experimental Data Snapshot

  • Resolution: 1.99 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 

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This is version 1.4 of the entry. See complete history


Structures of Ubiquitin Insertion Mutants Support Site-specific Reflex Response to Insertions Hypothesis.

Ferraro, D.M.Ferraro, D.J.Ramaswamy, S.Robertson, A.D.

(2006) J Mol Biol 359: 390-402

  • DOI: https://doi.org/10.1016/j.jmb.2006.03.047
  • Primary Citation of Related Structures:  
    2GBJ, 2GBK, 2GBM, 2GBN, 2GBR

  • PubMed Abstract: 

    We previously concluded that, judging from NMR chemical shifts, the effects of insertions into ubiquitin on its conformation appear to depend primarily on the site of insertion rather than the sequence of the insertion. To obtain a more complete and atomic-resolution understanding of how these insertions modulate the conformation of ubiquitin, we have solved the crystal structures of four insertional mutants of ubiquitin. Insertions between residues 9 and 10 of ubiquitin are minimally perturbing to the remainder of the protein, while larger alterations occur when the insertion is between residues 35 and 36. Further, the alterations in response to insertions are very similar for each mutant at a given site. Two insertions, one at each site, were designed from structurally homologous proteins. Interestingly, the secondary structure within these five to seven amino acid residue insertions is conserved in the new protein. Overall, the crystal structures support the previous conclusion that the conformational effects of these insertions are determined largely by the site of insertion and only secondarily by the sequence of the insert.

  • Organizational Affiliation

    Department of Biochemistry, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D
83Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P0CG48 (Homo sapiens)
Explore P0CG48 
Go to UniProtKB:  P0CG48
GTEx:  ENSG00000150991 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0CG48
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.99 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.046α = 79.91
b = 45.895β = 74.99
c = 54.382γ = 81.33
Software Package:
Software NamePurpose
d*TREKdata scaling
PDB_EXTRACTdata extraction
JDirectordata collection

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-05-16
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description
  • Version 1.4: 2023-08-30
    Changes: Data collection, Database references, Refinement description