1RJ2

Crystal structure of the DH/PH fragment of Dbs without bound GTPase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.239 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the DH/PH fragment of Dbs without bound GTPase.

Worthylake, D.K.Rossman, K.L.Sondek, J.

(2004) Structure 12: 1078-1086

  • DOI: 10.1016/j.str.2004.03.021
  • Primary Citation of Related Structures:  
    1RJ2

  • PubMed Abstract: 
  • Dbl proteins are guanine nucleotide exchange factors for Rho GTPases, containing adjacent Dbl homology (DH) and pleckstrin homology (PH) domains. This domain architecture is virtually invariant and typically required for full exchange potential. Several structures of DH/PH fragments bound to GTPases implicate the PH domain in nucleotide exchange ...

    Dbl proteins are guanine nucleotide exchange factors for Rho GTPases, containing adjacent Dbl homology (DH) and pleckstrin homology (PH) domains. This domain architecture is virtually invariant and typically required for full exchange potential. Several structures of DH/PH fragments bound to GTPases implicate the PH domain in nucleotide exchange. To more fully understand the functional linkage between DH and PH domains, we have determined the crystal structure of the DH/PH fragment of Dbs without bound GTPase. This structure is generally similar to previously determined structures of Dbs bound to GTPases albeit with greater apparent mobility between the DH and PH domains. These comparisons suggest that the DH and PH domains of Dbs are spatially primed for binding GTPases and small alterations in intradomain conformations that may be elicited by subtle biological responses, such as altered phosphoinositide levels, are sufficient to enhance exchange by facilitating interactions between the PH domain and GTPases.


    Organizational Affiliation

    Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide exchange factor DBS [Fragment]A, B [auth D], C [auth G], D [auth J]353Mus musculusMutation(s): 0 
Gene Names: Mcf2lOSTDbs
UniProt & NIH Common Fund Data Resources
Find proteins for Q64096 (Mus musculus)
Explore Q64096 
Go to UniProtKB:  Q64096
IMPC:  MGI:103263
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.239 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.989α = 90
b = 82.824β = 90.8
c = 127.257γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
BEASTmodel building
CNSrefinement
BEASTphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-06-29
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance