2GD3

NMR structure of S14G-humanin in 30% TFE solution


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 14 
  • Selection Criteria: 14 convergent conformers are presented having the lowest energy and the best structural quality in Ramachadran plot 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution structure of Ser14Gly-humanin, a potent rescue factor against neuronal cell death in Alzheimer's disease.

Benaki, D.Zikos, C.Evangelou, A.Livaniou, E.Vlassi, M.Mikros, E.Pelecanou, M.

(2006) Biochem.Biophys.Res.Commun. 349: 634-642

  • DOI: 10.1016/j.bbrc.2006.08.087

  • PubMed Abstract: 
  • The NMR solution study of Ser14Gly-humanin (S14G-HN), a 1000-fold more potent derivative of humanin (HN), is reported. HN is 24-residue peptide that selectively suppresses neuronal cell death caused by Alzheimer's disease (AD)-specific insults and of ...

    The NMR solution study of Ser14Gly-humanin (S14G-HN), a 1000-fold more potent derivative of humanin (HN), is reported. HN is 24-residue peptide that selectively suppresses neuronal cell death caused by Alzheimer's disease (AD)-specific insults and offers hope for the development of a cure against AD. In aqueous solution the NMR data show that S14G-HN is a flexible peptide with turn-like structures in its conformational ensemble distributed over an extensive part of its sequence from Pro3 to Glu15. In the more lipophilic environment of 30% TFE, an alpha-helical structure spanning residues Phe6 to Thr13 is identified. Comparison of these findings to the NMR structure of the parent HN and to existing structure-function relationship literature data outlines the important for activity structural features for this class of neuroprotective peptides, and brings forth flexibility as an important characteristic that may facilitate interactions with functional counterparts of the neuroprotection pathway.


    Related Citations: 
    • Solution structure of humanin, a peptide against Alzheimer's disease-related neurotoxicity.
      Benaki, D.,Zikos, C.,Evangelou, A.,Livaniou, E.,Vlassi, M.,Mikros, E.,Pelecanou, M.
      (2005) Biochem.Biophys.Res.Commun. 329: 152
    • Mechanisms of Neuroprotection by a Novel Rescue Factor Humanin from Swedish Mutant Amyloid Precursor Protein
      Hashimoto, Y.,Ito, Y.,Niikura, T.,Shao, Z.,Hata, M.,Oyama, F.,Nishimoto, I.
      (2001) Biochem.Biophys.Res.Commun. 283: 460
    • A rescue factor abolishing neuronal cell death by a wide spectrum of familial Alzheimer's disease genes and Abeta.
      Hashimoto, Y.,Niikura, T.,Tajima, H.,Yasukawa, T.,Sudo, H.,Ito, Y.,Kita, Y.,Kawasumi, M.,Kouyama, K.,Doyu, M.,Sobue, G.,Koide, T.,Tsuji, S.,Lang, J.,Kurokawa, K.,Nishimoto, I.
      (2001) Proc.Natl.Acad.Sci.Usa 98: 6336


    Organizational Affiliation

    Institute of Biology, NCSR Demokritos 15310 Athens, Greece.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Humanin
A
24Homo sapiensMutation(s): 1 
Gene Names: MT-RNR2 (HN)
Find proteins for Q8IVG9 (Homo sapiens)
Go to UniProtKB:  Q8IVG9
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 14 
  • Selection Criteria: 14 convergent conformers are presented having the lowest energy and the best structural quality in Ramachadran plot 
  • Olderado: 2GD3 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-09-19
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance