4K17

Crystal Structure of mouse CARMIL residues 1-668


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.215 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

CARMIL leading edge localization depends on a non-canonical PH domain and dimerization.

Zwolak, A.Yang, C.Feeser, E.A.Michael Ostap, E.Svitkina, T.Dominguez, R.

(2013) Nat Commun 4: 2523-2523

  • DOI: 10.1038/ncomms3523
  • Primary Citation of Related Structures:  
    4K17

  • PubMed Abstract: 
  • CARMIL is an approximately 1,370-amino-acid cytoskeletal scaffold that has crucial roles in cell motility and tissue development through interactions with cytoskeletal effectors and regulation of capping protein at the leading edge. However, the mechanism of CARMIL leading edge localization is unknown ...

    CARMIL is an approximately 1,370-amino-acid cytoskeletal scaffold that has crucial roles in cell motility and tissue development through interactions with cytoskeletal effectors and regulation of capping protein at the leading edge. However, the mechanism of CARMIL leading edge localization is unknown. Here we show that CARMIL interacts directly with the plasma membrane through its amino-terminal region. The crystal structure of CARMIL1-668 reveals that this region harbours a non-canonical pleckstrin homology (PH) domain connected to a 16-leucine-rich repeat domain. Lipid binding is mediated by the PH domain, but is further enhanced by a central helical domain. Small-angle X-ray scattering reveals that the helical domain mediates antiparallel dimerization, properly positioning the PH domains for simultaneous membrane interaction. In cells, deletion of the PH domain impairs leading edge localization. The results support a direct membrane-binding mechanism for CARMIL localization at the leading edge, where it regulates cytoskeletal effectors and motility.


    Organizational Affiliation

    Department of Physiology, Perelman School of Medicine, University of Pennsylvania, 728 Clinical Research Building, 415 Curie Boulevard, Philadelphia, Pennsylvania 19104, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Leucine-rich repeat-containing protein 16AA, B, C, D669Mus musculusMutation(s): 0 
Gene Names: CarmilLrrc16Lrrc16aCarmil1
UniProt & NIH Common Fund Data Resources
Find proteins for Q6EDY6 (Mus musculus)
Explore Q6EDY6 
Go to UniProtKB:  Q6EDY6
IMPC:  MGI:1915982
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OHB
Query on OHB

Download Ideal Coordinates CCD File 
E [auth B]salicylamide
C7 H7 N O2
SKZKKFZAGNVIMN-UHFFFAOYSA-N
 Ligand Interaction
ABU
Query on ABU

Download Ideal Coordinates CCD File 
G [auth C]GAMMA-AMINO-BUTANOIC ACID
C4 H9 N O2
BTCSSZJGUNDROE-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download Ideal Coordinates CCD File 
F [auth B]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, DL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.215 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.168α = 92.73
b = 67.986β = 96.95
c = 212.151γ = 110.15
Software Package:
Software NamePurpose
ADSCdata collection
SnBphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-09
    Type: Initial release