4XVU

Structure of Get3 bound to the transmembrane domain of Nyv1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Protein targeting. Structure of the Get3 targeting factor in complex with its membrane protein cargo.

Mateja, A.Paduch, M.Chang, H.Y.Szydlowska, A.Kossiakoff, A.A.Hegde, R.S.Keenan, R.J.

(2015) Science 347: 1152-1155

  • DOI: 10.1126/science.1261671
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Tail-anchored (TA) proteins are a physiologically important class of membrane proteins targeted to the endoplasmic reticulum by the conserved guided-entry of TA proteins (GET) pathway. During transit, their hydrophobic transmembrane domains (TMDs) ar ...

    Tail-anchored (TA) proteins are a physiologically important class of membrane proteins targeted to the endoplasmic reticulum by the conserved guided-entry of TA proteins (GET) pathway. During transit, their hydrophobic transmembrane domains (TMDs) are chaperoned by the cytosolic targeting factor Get3, but the molecular nature of the functional Get3-TA protein targeting complex remains unknown. We reconstituted the physiologic assembly pathway for a functional targeting complex and showed that it comprises a TA protein bound to a Get3 homodimer. Crystal structures of Get3 bound to different TA proteins showed an α-helical TMD occupying a hydrophobic groove that spans the Get3 homodimer. Our data elucidate the mechanism of TA protein recognition and shielding by Get3 and suggest general principles of hydrophobic domain chaperoning by cellular targeting factors.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATPase GET3
A, B, G, H
354Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutations: N57D
Gene Names: GET3 (ARR4)
EC: 3.6.-.-
Find proteins for Q12154 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12154
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Antibody heavy chain
C, E, I, K
230N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Antibody light chain
D, F, J, L
217N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Nyv1 TMD
g, a
37N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A, B, G, H
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
ZN
Query on ZN

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

Download SDF File 
Download CCD File 
A, B, G, H
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UNK
Query on UNK
a, g
L-PEPTIDE LINKINGC4 H9 N O2

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.197 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 79.440α = 63.05
b = 109.230β = 77.74
c = 111.350γ = 70.17
Software Package:
Software NamePurpose
PHENIXrefinement
Cootmodel building
PHASERphasing
xia2data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01 GM086487
National Institutes of Health/National Institute of General Medical SciencesUnited StatesU01 GM094588
National Institutes of Health/National Institute of General Medical SciencesUnited StatesU54 GM087519

Revision History 

  • Version 1.0: 2015-03-18
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence, Derived calculations, Source and taxonomy