Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 41312.81 
• Atom Count: 2748 
• Residue Count: 354 
• Unique protein chains: 1

1DBH

DBL AND PLECKSTRIN HOMOLOGY DOMAINS FROM HSOS1

• DOI: 10.2210/pdb1DBH/pdb

• Classification: GENE REGULATION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21


• Deposited: 1998-12-17 Released: 1998-12-23 
• Deposition Author(s): Soisson, S.M., Kuriyan, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.269 
• R-Value Work: 0.229 

Literature

Crystal structure of the Dbl and pleckstrin homology domains from the human Son of sevenless protein.

Soisson, S.M., Nimnual, A.S., Uy, M., Bar-Sagi, D., Kuriyan, J.

(1998) Cell 95: 259-268

• PubMed: 9790532 


• PubMed Abstract: 
  

Proteins containing Dbl homology (DH) domains activate Rho-family GTPases by functioning as specific guanine nucleotide exchange factors. All known DH domains have associated C-terminal pleckstrin homology (PH) domains that are implicated in targeting and regulatory functions. The crystal structure of a fragment of the human Son of sevenless protein containing the DH and PH domains has been determined at 2.3 A resolution. The entirely alpha-helical DH domain is unrelated in architecture to other nucleotide exchange factors. The active site of the DH domain, identified on the basis of sequence conservation and structural features, lies near the interface between the DH and PH domains. The structure suggests that ligation of the PH domain will be coupled structurally to the GTPase binding site.

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Organizational Affiliation: 

Howard Hughes Medical Institute, The Rockefeller University, New York, New York 10021, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (HUMAN SOS 1)	A	354	Homo sapiens	Mutation(s): 0  Gene Names: SOS1
Find proteins for Q07889 (Homo sapiens) Go to Gene View: SOS1 Go to UniProtKB:  Q07889

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.269 
• R-Value Work: 0.229 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 104.400	α = 90.00
b = 70.440	β = 96.29
c = 73.830	γ = 90.00

Software Package:

Software Name	Purpose
DENZO	data reduction
CNS	refinement
MLPHARE	phasing
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-12-17 
• Released Date: 1998-12-23 
• Deposition Author(s): Soisson, S.M., Kuriyan, J.

Revision History 

• Version 1.0: 1998-12-23
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance