Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 167 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY 

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This is version 1.4 of the entry. See complete history


Solution structure of human GAIP (Galpha interacting protein): a regulator of G protein signaling.

de Alba, E.De Vries, L.Farquhar, M.G.Tjandra, N.

(1999) J Mol Biol 291: 927-939

  • DOI: https://doi.org/10.1006/jmbi.1999.2989
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The solution structure of the human protein GAIP (Galpha interacting protein), a regulator of G protein signaling, has been determined by NMR techniques. Dipolar couplings of the oriented protein in two different liquid crystal media have been used in the structure calculation. The solution structure of GAIP is compared to the crystal structure of an homologous protein from rat (RGS4) complexed to the alpha-subunit of a G protein. Some of RGS4 residues involved in the Galpha-RGS binding interface have similar orientations in GAIP (free form), indicating that upon binding these residues do not suffer conformational rearrangements, and therefore, their role does not seem to be restricted to Galpha interaction but also to RGS folding and stability. We suggest that other structural differences between the two proteins may be related to the process of binding as well as to a distinct efficiency in their respective GTPase activating function.

  • Organizational Affiliation

    Laboratory of Biophysical Chemistry, Building 3 National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892-0380, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (GAIP (G-ALPHA INTERACTING) PROTEIN)152Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P49795 (Homo sapiens)
Explore P49795 
Go to UniProtKB:  P49795
PHAROS:  P49795
GTEx:  ENSG00000171700 
Entity Groups  
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UniProt GroupP49795
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 167 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-11-10
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2023-12-27
    Changes: Data collection