4K17

Crystal Structure of mouse CARMIL residues 1-668


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.895 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

  • 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 mech ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Leucine-rich repeat-containing protein 16A
A, B, C, D
669Mus musculusMutation(s): 0 
Gene Names: Carmil1 (Carmil, Lrrc16, Lrrc16a)
Find proteins for Q6EDY6 (Mus musculus)
Go to UniProtKB:  Q6EDY6
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
OHB
Query on OHB

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Download CCD File 
B
salicylamide
2-hydroxybenzamide
C7 H7 N O2
SKZKKFZAGNVIMN-UHFFFAOYSA-N
 Ligand Interaction
ABU
Query on ABU

Download SDF File 
Download CCD File 
C
GAMMA-AMINO-BUTANOIC ACID
GAMMA(AMINO)-BUTYRIC ACID
C4 H9 N O2
BTCSSZJGUNDROE-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.895 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
HKL-2000data reduction
CNSrefinement
ADSCdata collection
SnBphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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