2WOZ

The novel beta-propeller of the BTB-Kelch protein Krp1 provides the binding site for Lasp-1 that is necessary for pseudopodia extension


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Novel beta-propeller of the BTB-Kelch protein Krp1 provides a binding site for Lasp-1 that is necessary for pseudopodial extension.

Gray, C.H.McGarry, L.C.Spence, H.J.Riboldi-Tunnicliffe, A.Ozanne, B.W.

(2009) J Biol Chem 284: 30498-30507

  • DOI: 10.1074/jbc.M109.023259
  • Primary Citation of Related Structures:  
    2WOZ

  • PubMed Abstract: 
  • Kelch-related protein 1 (Krp1) is up-regulated in oncogene-transformed fibroblasts. The Kelch repeats interact directly with the actin-binding protein Lasp-1 in membrane ruffles at the tips of pseudopodia, where both proteins are necessary for pseudo ...

    Kelch-related protein 1 (Krp1) is up-regulated in oncogene-transformed fibroblasts. The Kelch repeats interact directly with the actin-binding protein Lasp-1 in membrane ruffles at the tips of pseudopodia, where both proteins are necessary for pseudopodial elongation. Herein, we investigate the molecular basis for this interaction. Probing an array of overlapping decapeptides of Rattus norvegicus (Rat) Krp1 with recombinant Lasp-1 revealed two binding sites; one ((317)YDPMENECYLT(327)) precedes the first of five Kelch repeats, and the other ((563)TEVNDIWKYEDD(574)) is in the last of the five Kelch repeats. Mutational analysis established that both binding sites are necessary for Krp1-Lasp-1 interaction in vitro and function in vivo. The crystal structure of the C-terminal domain of rat Krp1 (amino acids 289-606) reveals that both binding sites are brought into close proximity by the formation of a novel six-bladed beta-propeller, where the first blade is not formed by a Kelch repeat.


    Organizational Affiliation

    Invasion and Metastasis Laboratory, Beatson Institute for Cancer Research, Garscube Estate, Glasgow G61 1BD, Scotland, United Kingdom. c.gray@beatson.gla.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
KELCH REPEAT AND BTB DOMAIN-CONTAINING PROTEIN 10A318Rattus norvegicusMutation(s): 0 
Gene Names: Klhl41Kbtbd10Krp1
Find proteins for Q9ER30 (Rattus norvegicus)
Explore Q9ER30 
Go to UniProtKB:  Q9ER30
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.11α = 90
b = 98.53β = 90
c = 46.97γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-09-01
    Type: Initial release
  • Version 1.1: 2011-07-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-06-13
    Changes: Data collection, Database references, Source and taxonomy