5VE9

Structure of hACF7 EF1-EF2-GAR domains

  • Classification: PROTEIN BINDING
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli BL21

  • Deposited: 2017-04-04 Released: 2017-06-21 
  • Deposition Author(s): Lane, T.R., Slep, K.C.
  • Funding Organization(s): National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development; National Institutes of Health/National Institute of General Medical Sciences; National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.795 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.256 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Structure of the ACF7 EF-Hand-GAR Module and Delineation of Microtubule Binding Determinants.

Lane, T.R.Fuchs, E.Slep, K.C.

(2017) Structure 25: 1130-1138.e6

  • DOI: 10.1016/j.str.2017.05.006

  • PubMed Abstract: 
  • Spectraplakins are large molecules that cross-link F-actin and microtubules (MTs). Mutations in spectraplakins yield defective cell polarization, aberrant focal adhesion dynamics, and dystonia. We present the 2.8 Å crystal structure of the hACF7 EF1- ...

    Spectraplakins are large molecules that cross-link F-actin and microtubules (MTs). Mutations in spectraplakins yield defective cell polarization, aberrant focal adhesion dynamics, and dystonia. We present the 2.8 Å crystal structure of the hACF7 EF1-EF2-GAR MT-binding module and delineate the GAR residues critical for MT binding. The EF1-EF2 and GAR domains are autonomous domains connected by a flexible linker. The EF1-EF2 domain is an EFβ-scaffold with two bound Ca2+ ions that straddle an N-terminal α helix. The GAR domain has a unique α/β sandwich fold that coordinates Zn2+. While the EF1-EF2 domain is not sufficient for MT binding, the GAR domain is and likely enhances EF1-EF2-MT engagement. Residues in a conserved basic patch, distal to the GAR domain's Zn2+-binding site, mediate MT binding.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, NC 27599, USA; Molecular and Cellular Biophysics Program, University of North Carolina, Chapel Hill, NC 27599, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Microtubule-actin cross-linking factor 1, isoforms 1/2/3/5
A, B
91Homo sapiensMutation(s): 0 
Gene Names: MACF1 (ABP620, ACF7, KIAA0465, KIAA1251)
Find proteins for Q9UPN3 (Homo sapiens)
Go to Gene View: MACF1
Go to UniProtKB:  Q9UPN3
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Microtubule-actin cross-linking factor 1, isoforms 1/2/3/5
C
74Homo sapiensMutation(s): 0 
Gene Names: MACF1 (ABP620, ACF7, KIAA0465, KIAA1251)
Find proteins for Q9UPN3 (Homo sapiens)
Go to Gene View: MACF1
Go to UniProtKB:  Q9UPN3
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, C
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.795 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.256 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 92.984α = 90.00
b = 92.984β = 90.00
c = 90.446γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
PHENIXphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2017-04-04 
  • Released Date: 2017-06-21 
  • Deposition Author(s): Lane, T.R., Slep, K.C.

Funding OrganizationLocationGrant Number
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human DevelopmentUnited StatesR03HD084980
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM094415
National Institutes of Health/National Institute of General Medical SciencesUnited StatesT32GM008570
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin DiseasesUnited StatesR37AR27883

Revision History 

  • Version 1.0: 2017-06-21
    Type: Initial release
  • Version 1.1: 2017-07-19
    Type: Database references
  • Version 1.2: 2017-09-13
    Type: Author supporting evidence
  • Version 2.0: 2017-11-08
    Type: Advisory, Atomic model, Database references, Derived calculations