1FB8

STRUCTURE OF THE PLECKSTRIN HOMOLOGY DOMAIN FROM DAPP1/PHISH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for discrimination of 3-phosphoinositides by pleckstrin homology domains.

Ferguson, K.M.Kavran, J.M.Sankaran, V.G.Fournier, E.Isakoff, S.J.Skolnik, E.Y.Lemmon, M.A.

(2000) Mol Cell 6: 373-384

  • DOI: 10.1016/s1097-2765(00)00037-x
  • Primary Citation of Related Structures:  
    1FAO, 1FB8, 1FHX, 1FHW

  • PubMed Abstract: 
  • Pleckstrin homology (PH) domains are protein modules of around 120 amino acids found in many proteins involved in cellular signaling. Certain PH domains drive signal-dependent membrane recruitment of their host proteins by binding strongly and specifically to lipid second messengers produced by agonist-stimulated phosphoinositide 3-kinases (PI 3-Ks) ...

    Pleckstrin homology (PH) domains are protein modules of around 120 amino acids found in many proteins involved in cellular signaling. Certain PH domains drive signal-dependent membrane recruitment of their host proteins by binding strongly and specifically to lipid second messengers produced by agonist-stimulated phosphoinositide 3-kinases (PI 3-Ks). We describe X-ray crystal structures of two different PH domains bound to Ins(1,3,4,5)P4, the head group of the major PI 3-K product PtdIns(3,4,5)P3. One of these PH domains (from Grp1) is PtdIns(3,4,5)P3 specific, while the other (from DAPP1/PHISH) binds strongly to both PtdIns(3,4,5)P3 and its 5'-dephosphorylation product, PtdIns(3,4)P2. Comparison of the two structures provides an explanation for the distinct phosphoinositide specificities of the two PH domains and allows us to predict the 3-phosphoinositide selectivity of uncharacterized PH domains.


    Organizational Affiliation

    Department of Biochemistry and Biophysics and The Johnson Foundation, University of Pennsylvania School of Medicine, Philadelphia 19104, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DUAL ADAPTOR OF PHOSPHOTYROSINE AND 3-PHOSPHOINOSITIDESA126Homo sapiensMutation(s): 0 
Gene Names: DAPP1BAM32HSPC066
Find proteins for Q9UN19 (Homo sapiens)
Explore Q9UN19 
Go to UniProtKB:  Q9UN19
NIH Common Fund Data Resources
PHAROS:  Q9UN19
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 
  • Space Group: I 4
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.38α = 90
b = 83.38β = 90
c = 38.52γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-07-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance