obestatin NMR structure in SDS/DPC micellar solution

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Obestatin conformational features: a strategy to unveil obestatin's biological role?

Scrima, M.Campiglia, P.Esposito, C.Gomez-Monterrey, I.Novellino, E.D'Ursi, A.M.

(2007) Biochem Biophys Res Commun 363: 500-505

  • DOI: https://doi.org/10.1016/j.bbrc.2007.08.200
  • Primary Citation of Related Structures:  
    2JSH, 2JSI, 2JSJ

  • PubMed Abstract: 

    Obestatin and its derivative Ob(11-23) are recently discovered peptides produced in the rat stomach. They have proven to be involved in the regulation of energy balance, inhibiting feeding, causing reductions in food intake, body weight and jejunal contraction in rodents. The G-protein coupled receptor, GPR39, was originally proposed as being an obestatin target receptor, but this remains controversial. As such, the molecular mechanism for obestatin's effects in vivo is still uncertain. Here we report the CD and NMR conformational analysis of obestatin and Ob(11-23). Both peptides assume a regular secondary structure in the C-terminal region of the molecule. In this region, structural elements similar to other GPCR binding neuropeptides support the identity of obestatin as a new and functionally autonomous GPCR ligand. Conversely sequence and conformational specificity point to a new farmacoforic structure, on which innovative derivatives with a potential role in the treatment of obesity can be designed and synthetized.

  • Organizational Affiliation

    Department of Pharmaceutical Sciences, University of Salerno, I-84084 Fisciano, Italy.


Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Appetite-regulating hormone, Obestatin24N/AMutation(s): 0 
Membrane Entity: Yes 
Find proteins for Q9EQX0 (Mus musculus)
Explore Q9EQX0 
Go to UniProtKB:  Q9EQX0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9EQX0
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 28 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-10-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Database references, Derived calculations