1T77

Crystal structure of the PH-BEACH domains of human LRBA/BGL

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal Structure of the PH-BEACH Domains of Human LRBA/BGL

Gebauer, D., Li, J., Jogl, G., Shen, Y., Myszka, D.G., Tong, L.

(2004) Biochemistry 43: 14873-14880

  • DOI: 10.1021/bi049498y
  • Primary Citation of Related Structures:  
    1T77

  • PubMed Abstract: 

    • The beige and Chediak-Higashi syndrome (BEACH) domain defines a large family of eukaryotic proteins that have diverse cellular functions in vesicle trafficking, membrane dynamics, and receptor signaling. The domain is the only module that is highly conserved among all of these proteins, but the exact functions of this domain and the molecular basis for its actions are currently unknown ...

    The beige and Chediak-Higashi syndrome (BEACH) domain defines a large family of eukaryotic proteins that have diverse cellular functions in vesicle trafficking, membrane dynamics, and receptor signaling. The domain is the only module that is highly conserved among all of these proteins, but the exact functions of this domain and the molecular basis for its actions are currently unknown. Our previous studies showed that the BEACH domain is preceded by a novel, weakly conserved pleckstrin homology (PH) domain. We report here the crystal structure at 2.4 A resolution of the PH-BEACH domain of human LRBA/BGL. The PH domain has the same backbone fold as canonical PH domains, despite sharing no sequence homology with them. However, our binding assays demonstrate that the PH domain in the BEACH proteins cannot bind phospholipids. The BEACH domain contains a core of several partially extended peptide segments that is flanked by helices on both sides. The structure suggests intimate association between the PH and the BEACH domains, and surface plasmon resonance studies confirm that the two domains of the protein FAN have high affinity for each other, with a K(d) of 120 nM.

    Organizational Affiliation: 

    Department of Biological Sciences, Columbia University, New York, New York 10027, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Lipopolysaccharide-responsive and beige-like anchor proteinA, B, C, D414Homo sapiensMutation(s): 0 
Gene Names: LRBA, LBA, CDC4L, BGL
UniProt & NIH Common Fund Data Resources
Find proteins for P50851 (Homo sapiens)
Explore P50851 
Go to UniProtKB:  P50851
PHAROS:  P50851
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP50851
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.218α = 90
b = 102.239β = 90.47
c = 131.519γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
COMOphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-12-21
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance