3GJO

Crystal structure of human EB1 in complex with microtubule Tip localization signal peptide of MACF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An EB1-binding motif acts as a microtubule tip localization signal

Honnappa, S.Gouveia, S.M.Weisbrich, A.Damberger, F.F.Bhavesh, N.S.Jawhari, H.Grigoriev, I.van Rijssel, F.J.A.Buey, R.M.Lawera, A.Jelesarov, I.Winkler, F.K.Wuthrich, K.Akhmanova, A.Steinmetz, M.O.

(2009) Cell 138: 366-376

  • DOI: 10.1016/j.cell.2009.04.065

  • PubMed Abstract: 
  • Microtubules are filamentous polymers essential for cell viability. Microtubule plus-end tracking proteins (+TIPs) associate with growing microtubule plus ends and control microtubule dynamics and interactions with different cellular structures durin ...

    Microtubules are filamentous polymers essential for cell viability. Microtubule plus-end tracking proteins (+TIPs) associate with growing microtubule plus ends and control microtubule dynamics and interactions with different cellular structures during cell division, migration, and morphogenesis. EB1 and its homologs are highly conserved proteins that play an important role in the targeting of +TIPs to microtubule ends, but the underlying molecular mechanism remains elusive. By using live cell experiments and in vitro reconstitution assays, we demonstrate that a short polypeptide motif, Ser-x-Ile-Pro (SxIP), is used by numerous +TIPs, including the tumor suppressor APC, the transmembrane protein STIM1, and the kinesin MCAK, for localization to microtubule tips in an EB1-dependent manner. Structural and biochemical data reveal the molecular basis of the EB1-SxIP interaction and explain its negative regulation by phosphorylation. Our findings establish a general "microtubule tip localization signal" (MtLS) and delineate a unifying mechanism for this subcellular protein targeting process.


    Organizational Affiliation

    Biomolecular Research, Structural Biology, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Microtubule-associated protein RP/EB family member 1
A, B, C, D
72Homo sapiensGene Names: MAPRE1
Find proteins for Q15691 (Homo sapiens)
Go to Gene View: MAPRE1
Go to UniProtKB:  Q15691
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Dystonin
E, F, G, H
30Homo sapiensGene Names: DST (BP230, BP240, BPAG1, DMH, DT, KIAA0728)
Find proteins for Q03001 (Homo sapiens)
Go to Gene View: DST
Go to UniProtKB:  Q03001
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.213 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 45.614α = 90.00
b = 44.896β = 98.57
c = 74.840γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-08-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2012-04-18
    Type: Database references