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 1.1 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: 10.1074/jbc.M109.017764
  • Primary Citation of Related Structures:  
    3H0T, 2KEF

  • 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 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HepcidinA25Homo sapiensMutation(s): 0 
Gene Names: HAMPHEPCLEAP1UNQ487/PRO1003
Find proteins for P81172 (Homo sapiens)
Explore P81172 
Go to UniProtKB:  P81172
NIH Common Fund Data Resources
PHAROS  P81172
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • OLDERADO: 2KEF Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance