1DVC

SOLUTION NMR STRUCTURE OF HUMAN STEFIN A AT PH 5.5 AND 308K, NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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This is version 1.3 of the entry. See complete history


Literature

The three-dimensional solution structure of human stefin A.

Martin, J.R.Craven, C.J.Jerala, R.Kroon-Zitko, L.Zerovnik, E.Turk, V.Waltho, J.P.

(1995) J Mol Biol 246: 331-343

  • DOI: https://doi.org/10.1006/jmbi.1994.0088
  • Primary Citation of Related Structures:  
    1DVC, 1DVD

  • PubMed Abstract: 

    The three-dimensional solution structure of recombinant human stefin A has been determined by a simulated annealing protocol using a total of 1113 distance and angle constraints obtained from 1H and 15N HMR spectroscopy. The solution structure is represented by a family of 17 conformers with an average root-mean-square deviation relative to the mean structure of 0.44 A for backbone atoms and 0.94 A for all heavy atoms for the main body of the structure. The protein has a well-defined global fold consisting of five anti-parallel beta-strands wrapped around a central five-turn alpha-helix. There is considerable similarity between the structural features of free stefin A in solution and the X-ray structure of the homologous protein stefin B in its complex with papain, but there are also some important differences in the regions which are fundamental to proteinase binding. The differences consist primarily of two regions of high conformational heterogeneity in free stefin A which correspond in stefin B to two of the components of the tripartite wedge that docks into the active site of the target proteinase. These regions, which are shown to be mobile in solution, are the five N-terminal residues and the second binding loop. In the bound conformation of stefin B they form a turn and a short helix, respectively.


  • Organizational Affiliation

    Krebs Institute, Department of Molecular Biology and Biotechnology, University of Sheffield, U.K.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
STEFIN A98Homo sapiensMutation(s): 0 
Gene Names: POTENTIAL
UniProt & NIH Common Fund Data Resources
Find proteins for P01040 (Homo sapiens)
Explore P01040 
Go to UniProtKB:  P01040
GTEx:  ENSG00000121552 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01040
Sequence Annotations
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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: 1996-08-01
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations, Other