1XX0

Structure of the C-terminal PH domain of human pleckstrin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and phosphatidylinositol-(3,4)-bisphosphate binding of the C-terminal PH domain of human pleckstrin

Edlich, C.Stier, G.Simon, B.Sattler, M.Muhle-Goll, C.

(2005) STRUCTURE 13: 277-286

  • DOI: 10.1016/j.str.2004.11.012

  • PubMed Abstract: 
  • Pleckstrin is the major target of protein kinase C (PKC) in blood platelets. Its phosphorylation triggers responses that ultimately lead to platelet activation and blood clot formation. Pleckstrin consists of three domains: a pleckstrin homology (PH) ...

    Pleckstrin is the major target of protein kinase C (PKC) in blood platelets. Its phosphorylation triggers responses that ultimately lead to platelet activation and blood clot formation. Pleckstrin consists of three domains: a pleckstrin homology (PH) domain at both termini and a central DEP (Dishevelled, Egl-1, Pleckstrin) domain. Here, we report the solution nuclear magnetic resonance (NMR) structure of the C-terminal PH domain (C-PH) of human pleckstrin-1. We show that this PH domain binds phosphatidylinositol-3,4-bisphosphate (PtdIns(3,4)P2) with high specificity in protein lipid overlay assays. Using NMR titration experiments and mutational analysis, residues involved in binding to PtdIns(3,4)P2 are identified. The binding site is formed by a patch of basic residues from the beta1 and beta2 strands and the beta1-beta2 loop. Since PtdIns(3,4)P2 is an important signaling molecule in platelets, our data suggest a C-PH dependent regulation of pleckstrin function in response to PtdIns(3,4)P2.


    Organizational Affiliation

    EMBL Heidelberg, Meyerhofstr. 1, 69117 Heidelberg, Germany. edlich@embl.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pleckstrin
A
127Homo sapiensMutation(s): 0 
Gene Names: PLEK (P47)
Find proteins for P08567 (Homo sapiens)
Go to Gene View: PLEK
Go to UniProtKB:  P08567
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 80 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1XX0 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-05-03
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance