2KEF

Solution NMR structures of human hepcidin at 325K


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Hepcidin revisited, disulfide connectivity, dynamics, and structure.

Jordan, J.B.Poppe, L.Haniu, M.Arvedson, T.Syed, R.Li, V.Kohno, H.Kim, H.Schnier, P.D.Harvey, T.S.Miranda, L.P.Cheetham, J.Sasu, B.J.

(2009) J Biol Chem 284: 24155-24167

  • DOI: https://doi.org/10.1074/jbc.M109.017764
  • Primary Citation of Related Structures:  
    2KEF, 3H0T

  • PubMed Abstract: 

    Hepcidin is a tightly folded 25-residue peptide hormone containing four disulfide bonds, which has been shown to act as the principal regulator of iron homeostasis in vertebrates. We used multiple techniques to demonstrate a disulfide bonding pattern for hepcidin different from that previously published. All techniques confirmed the following disulfide bond connectivity: Cys(1)-Cys(8), Cys(3)-Cys(6), Cys(2)-Cys(4), and Cys(5)-Cys(7). NMR studies reveal a new model for hepcidin that, at ambient temperatures, interconverts between two different conformations, which could be individually resolved by temperature variation. Using these methods, the solution structure of hepcidin was determined at 325 and 253 K in supercooled water. X-ray analysis of a co-crystal with Fab appeared to stabilize a hepcidin conformation similar to the high temperature NMR structure.


  • Organizational Affiliation

    Department of Molecular Structure, Amgen, Inc., Thousand Oaks, California 91320, USA. jbjordan@amgen.com


Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Hepcidin25Homo sapiensMutation(s): 0 
Gene Names: HAMPHEPCLEAP1
UniProt & NIH Common Fund Data Resources
Find proteins for P81172 (Homo sapiens)
Explore P81172 
Go to UniProtKB:  P81172
PHAROS:  P81172
GTEx:  ENSG00000105697 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP81172
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Database references, Derived calculations